Blog on Marek Rychlý

Alcatel OneTouch 997D

Thu, 01 Jul 2021 00:00:00 +0000

Booting

Power+VolumeUp – boot into Recovery
Power+VolumeDown – boot into flash-boot; IT DOES NOT WORK

Rooting

install Framaroot
run the Framaroot and use the 1st exploit to install SuperSU
install Mobileuncle MTK Tools
download CWM Recovery
run the Mobileuncle MTK Tools and install the CWM Recovery
download custom NANDROID BACKUP script archive
- extract the archive into an exteral SD-card
- install GScript Lite, which is also available in the downloaded archive
- run the GScript Lite, add a new script by … menu, select the script from the archive extracted into the SD-card and check SU execution
- run the script by GScript Lite to create a backup in SD-card:/clockworkmod/backup

Resources

MTK Droid Root & Tools for rooting MediaTek MT65xx Android Smartphones
How to Root and Install CWM Recovery to Alcatel OneTouch 997D
How to Root Any Android Device Manually

Huawei K5160 USB LTE Modem

Sat, 12 Jun 2021 00:00:00 +0000

USB Mode Switch

usb_modeswitch -W -v 12d1 -p 1f1e -X # huawei-alt-mode for CDC NCM (modem) mode (msg 3)
Device: /dev/ttyUSB0
OpenWRT’s usb-modeswitch config file /etc/usb-mode.json
- Using the alternative Huawei switching message as defined in usb_modeswitch, file usb_modeswitch.c, line 755.
- Using decimal values of TargetVendor and TargetProductList for Vodafone / Huawei K5160 from file ${pkgs.usb-modeswitch-data}/share/usb_modeswitch/12d1:1f1e.
Messages for various USB modes: from plain old PPP modem up to Ethernet emulation and CDC NCM modem specification.
List t_product contains product ids for inidividual modes (PPP, RNDIS/CDCeth, CDC NCM).

{
	"messages" : [
		"55534243123456780000000000000011063000000100000000000000000000",
		"55534243123456780000000000000011060000000100000100000000000000",
		"55534243123456780000000000000011062000000101000100000000000000",
		"55534243123456780000000000000011063000000000010000000000000000"
	],
	"devices" : {
		"12d1:1f1e": {
			"*": {
				"t_vendor": 4817,
				"t_product": [ 4097, 5503, 5470 ],
				"msg": [ 3 ]
			}
		}
	}
}

Old PPP mode (msg 0)

$ cat /sys/kernel/debug/usb/devices

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 13 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=12d1 ProdID=1001 Rev= 1.02
S: Manufacturer=Vodafone (Huawei)
S: Product=Vodafone (Huawei)
C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

$ dmesg

usb-storage 1-1.1:1.0: USB Mass Storage device detected
scsi host0: usb-storage 1-1.1:1.0
usb 1-1.1: USB disconnect, device number 12
usb 1-1.1: new high-speed USB device number 13 using ehci-platform
option 1-1.1:1.0: GSM modem (1-port) converter detected
usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
option 1-1.1:1.1: GSM modem (1-port) converter detected
usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
option 1-1.1:1.2: GSM modem (1-port) converter detected
usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2

RNDIS mode (msg 1)

$ cat /sys/kernel/debug/usb/devices

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 15 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=12d1 ProdID=157f Rev= 1.02
S: Manufacturer=Vodafone (Huawei)
S: Product=Vodafone (Huawei)
C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr= 2mA
A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=03
I:* If#= 0 Alt= 0 #EPs= 1 Cls=e0(wlcon) Sub=01 Prot=03 Driver=(none)
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=2ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

$ cat /sys/bus/usb/devices/1-1.1:1.0/interface

RNDIS Communications Control

CDC Ethernet mode (msg 2)

$ cat /sys/kernel/debug/usb/devices

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 17 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=12d1 ProdID=157f Rev= 1.02
S: Manufacturer=Vodafone (Huawei)
S: Product=Vodafone (Huawei)
C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=(none)
E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=2ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=06 Prot=00 Driver=(none)
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

$ cat /sys/bus/usb/devices/1-1.1:1.0/interface
CDC Ethernet Control Model (ECM)

CDC NCM (modem) mode (msg 3)

$ cat /sys/kernel/debug/usb/devices

T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 21 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=12d1 ProdID=155e Rev= 1.02
S: Manufacturer=Vodafone (Huawei)
S: Product=Vodafone (Huawei)
C:* #Ifs= 5 Cfg#= 1 Atr=80 MxPwr= 2mA
A: FirstIf#= 3 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0d Prot=00 Driver=(none)
E: Ad=87(I) Atr=03(Int.) MxPS= 16 Ivl=2ms
I:* If#= 4 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=01 Driver=(none)
I: If#= 4 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=(none)
E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

$ cat /sys/bus/usb/devices/1-1.1:1.3/interface

NCM Network Control Model

$ cat /sys/bus/usb/devices/1-1.1:1.4/interface

CDC Network Data

$ dmesg

usb-storage 1-1.1:1.0: USB Mass Storage device detected
scsi host0: usb-storage 1-1.1:1.0
usb 1-1.1: USB disconnect, device number 12
usb 1-1.1: new high-speed USB device number 13 using ehci-platform
option 1-1.1:1.0: GSM modem (1-port) converter detected
usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0
option 1-1.1:1.1: GSM modem (1-port) converter detected
usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1
option 1-1.1:1.2: GSM modem (1-port) converter detected
usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2

Android Phone ROM

Wed, 01 Jul 2020 00:00:00 +0000

boot into TWRP and wipe/format Data and wipe System and Cache
- install ROM
- install Magisk
reboot
in Magisk enable Systemless hosts
in Setting, Security, set Screen lock to PIN and enable Encryption, Enctyp phone (may not work later, so must be done now)
boot into TWRP
- upload a MicroG installer configuration
- install MicroG and its Google Sync adapters
- install Migrate backup
reboot
enable Developer mode and USB debug (also adb shell su -c "setprop service.adb.tcp.port 5555 && stop adbd && start adbd"); SIM preferences (SMS and data); WiFi
enable MicroG permissions (adb shell su -c 'npem'), set MicroG NLP backends, check MicroG status, add Google Accounts
enable “Allow apps to find accounts” in Settings, Accounts, the account, Personal info & privacy
restore from the Migrate backup
reboot
enable sync, check all apps, finalize settings

Recovery Boot

Xiaomi: With the device powered off, hold “Volume Up” + “Power”. Keep holding both buttons until the “MI” logo appears on the screen, then release.
or fastboot boot twrp-*.img

Cleaning ROM

Now tap “Wipe”.
Now tap “Format Data” and continue with the formatting process. This will remove encryption and delete all files stored in the internal storage.
Return to the previous menu and tap “Advanced Wipe”, then select the “Cache” and “System” partitions and then “Swipe to Wipe”.

Install ROM

On the device, select “Advanced”, “ADB Sideload”, then swipe to begin sideload.
On the host machine, sideload the package using: adb sideload filename.zip

Updating ROM (OTA)

install the OTA update
boot into recovery and install Magisk
enable MicroG permissions (adb shell su -c 'npem'), set MicroG NLP backends, check MicroG status, add Google Accounts
enable “Allow apps to find accounts” in Settings, Accounts, the account, Personal info & privacy
update and open Aurora Services and whitelist Aurora Shop
reboot
check apps, fix broken apps:
- clean reinstall (remove and install): AliExpress, Google Photos, Pubtran, Google Calendar, Keybase, Klara, L-Speed, Zpevnik

Restoring from TWRP Backup (Removing Full-Disk Encryption)

Full-Disk Encryption cannot be removed without loose of data, the following procedure does not work:
- TWRP: “Backup”, “data”
- adb pull /data/media/0/TWRP/BACKUPS
- TWRP: “Wipe”, “Format Data”, “yes”
- adb push BACKUPS /data/media
- TWRP: “Restore”, …, “Delete backup”, …, “Reboot”
- does not work, as it tries to encrypt FS once again

ROM

Mido (Redmi Note 4X)

List of Best Custom ROM for Xiaomi Redmi Note 4/4X
Arrow OS
PixelExperience
EvolutionX
crDroid
Havoc OS
MSM Xtended
AOSiP
OmniROM – including a MicroG release
deprecated: AOSP Extended – mido removed in Android 10 ???
deprecated: LineageOS – mido removed in 17.1

Land (Redmi 3S)

List Of All Best Custom ROM For Xiaomi Redmi 3S/Prime/3X
Arrow OS
- pros: OTA and quite regular builds, Lawnchair as the default launcher, etc.
- cons: disabled SELinux (and broken SafetyNet), full-disk encryption disable fingerprint unlock (FDE must be done ASAP, otherwise there is boot loop), sensors doze in L-Speed turn off backlight after wake-up when sensors are enabled (TODO: check if disabling sensors doze helps), no extra settings
Havoc OS
- BUG @v3.5-20200529: MediaProvider does not provide android.intent.action.RINGTONE_PICKER so all activites selecting ring/alarm/etc. tones crash (e.g., Settings, Alarm, Caller, etc.) – workaround: use a custom Ringtone Picker, e.g., TonePicker (builds)
- ROM Havoc-OS-v3.5-20200529-land-Official.zip, OpenGApps Pico, 2 SIMs, WiFi, Bluetooth, GPS; enabled L-Speed Battery Profile with Force Doze (except for enabled Motion Detection; Camera whitelisted) and GPU Battery Profile; moderate usage (however, more than in the case of AOSP Extended) – battery last 28 hours
- cons: no OTA updates (and no automatic builds), Pixel Launcher (not much settings)
- pros: enabled SafetyNet and SeLinux enforcing, good settings (adb wireless, etc.)
AOSP Extended
- ROM AospExtended-v7.2-land-20200521-1755-OFFICIAL.zip, OpenGApps Pico, 2 SIMs, WiFi, Bluetooth, GPS; enabled L-Speed Battery Profile with Force Doze (except for enabled Motion Detection) and GPU Battery Profile; moderate usage (24 min Web browser, 16 min Tiny Tiny RSS, 1 hour Display; 33 % OS Android, 33 % System Android, 5 % display) – battery last 26 hours
- cons: low security (ADB enabled by default without authentication)
Corvus
- only some versions released, irregular (5.0 on 05-13, 5.5 on 05-30)
DerpFest
- too big (~1.1 GB)
deprecated: LineageOS – land removed in 17.0 ???

Magisk

Magisk ZIP file
Modules:
- deprecated: L Speed – use a non-Magisk release
- deprecated: F-Droid Privileged Extension – install peermission can be enabled for F-Droid in Android 10 as the application permission

Google Apps

by Google

Open GApps, ARM64, 10.0, pico

by MicroG

MicroG Wiki and Common microG Issues
NanoDroid
- boot ROM at least once before the installation (after the Magisk); then install BETA in TWRP: NanoDroid-microG, NanoDroid-Google
- Unified Nlp has some Android 10 issues
- configure/alter the installation – a mandatory step, otherwise Google Sync adapters wont be installed by NanoDroid-Google (they are disabled by default)

adb shell "cat >/data/media/0/.nanodroid-setup" <<END
nanodroid_microg=1
nanodroid_fdroid=0
nanodroid_apps=0
nanodroid_play=21
nanodroid_overlay=0
nanodroid_mapsv1=1
nanodroid_init="10_sqlite 20_fstrim 30_logcat 40_external_sd 50_logscleaner"
nanodroid_gsync=1
nanodroid_swipe=0
nanodroid_forcesystem=0
nanodroid_nlpbackend=1111
nanodroid_bash=1
nanodroid_utils="findfs findmnt hexdump lessecho lesskey lsblk lscpu lsipc lslocks lsns ncal whereis"
END

MinMicroG
- boot ROM at least once before the installation (after the Magisk); then install in TWRP: Standard Edition
microG Installer Revived as a Magisk module
- does not include location provider services and Google Sync
enable Signature Spoofing and permissions by
- adb shell su -c npem (for NanoDroid and MinMicroG) – in case of “Failure calling service package: Failed transaction (2147483646)” error, try again later as “su” and “npem”
- or GsmCore – microG Setting, Self-Check, System grants signature spoofing permission
- Play Store (Phonesky) – needs to enable signature spoofing by adb shell su -c "pm grant com.android.vending android.permission.FAKE_PACKAGE_SIGNATURE"
issues: broken GMail (use Fair Email), etc.

SafetyNet

requires Enforced SELinux
- disabled in ArrowOS, enabled in HavocOS
- can be enabled on start by Magisk module MultiFunctionsPlus
- it is not required, even for
  - Revolut (just reinstall in the case of any issues with a restored app from a backup)
  - Waze (remove all data and restart the app)
requires Certified Fingerprint
- by Magisk modules: Busybox for Android NDK and MagiskHide Props Config
- after reboot, run adb, su -, and props: Edit device fingerprint (1) > Pick a certified fingerprint (f) > Google (6) > Google Pixel 3a (20) > Android 10 (2) > Yes (y) > Reboot (y).

Apps

launcher: Lawnchair – Google Play releases (F-Droid releases are deprecated), update in ArrowOS (default version *.ci is old and buggy, e.g., in the two-columns dock)
repository: F-Droid – in Android 10 works even without F-Droid Privileged Extension
battery/power: LSpeed – custom profile with force doze, etc.
- land: Battery, Doze optimization, Disable motion detection – breaks Camera application; to fix Enable motion detection and Whitelist doze for Camera
backup/restore: Migrate-GPE or Migrate Mercury
mail client:
- FairEmail – open source, advanced, Google Play releases can use GMail account directly (without IMAP)
- BlueMain – closed source, easy
- install CA cert – Settings, Security, Encryption, Install (or download and run the crt file); add as an Application and VPN Certificate
ad-blocker: AdAway
- enable Systemless hosts in Magisk settings
wallpaper: convert xc:black -strip png:- | adb shell "cat > /sdcard/Pictures/black.png"
banking: Revolut – reinstall in the case of broken app after restoring from a Migrate backup

Settings (in Czech)

Informace o telefonu
- Nazev zarizeni: ?
- Nouzove informace
  - Jmeno: email
  - Nouzove kontakty: ?
System
- Jazyky a zadavani
  - Jazyk
    - Czech: ADD
    - English: DEL
- Zaloha
  - Zalohovani mych dat: ON
- Vice uzivatelu: OFF
- Pro vyvojare
  - Ladeni pres USB: ON
  - Vychozi konfigurace USB: PTP
  - Doplnkova barva: RED
Sit a internet
- Wi-Fi
  - Predvolby Wi-Fi
    - Oznamovat verejne site: OFF
- Mobilni site
  - (cokoliv)
    - Predvolby SMS: ?
  - (data SIM)
    - Mobilni data: ON
    - Roaming: ON
    - Preferovany typ site: GLOBAL (posledni)
  - (call SIM)
    - Preferovany typ site: GLOBAL (posledni)
- Hotspot a tethering
  - Wi-Fi hotspot
    - Nazev hotspotu: *_nomap
    - Heslo hotspotu: ?
Aplikace a oznameni
- Oznameni
  - Nerusit
    - SMS, MMS a aplikace k psani zprav
      - Povolit zpravy: Pouze od oblibenych kontaktu
    - Vychozi doba trvani: Pokazde se zeptat
    - Plany
      - Spanek: ON
        
        Pouzit plan: ON
        
        Cas zahajeni: 23:00
Baterie
- Kontrolka nabijeni baterie
  - Blikat pri nizkem stavu baterie: ON
- Styl ikony baterie
  - Styl baterie: TEXT
Displej
- Nocni rezim
  - Plan: Zapne se od soumraku do usvitu
  - Intenzita: 1/4
- Adaptivni jas: ON
- Automaticke otoceni obrazovky: ON
- Tmavy motiv: ON
- Styly tmaveho motivu: Pitch Black
- Styly a tapety
  - Styl: vlastni
    - Vybrat barvu: RED
  - Tapeta
    - Povolit pristup
    - Moje fotky: convert xc:black -strip png:- | adb shell "cat > /sdcard/Pictures/black.png"
- Polozky stavoveho radku
  - ALL
  - Hodiny: zobrazovat hodiny, minuty a sekundy
Zvuk
- Hlasitost *: MAX
- Vibrace u volani: ON
- Vyzvaneci ton telefonu: Lollipop
- Vychozi zvuk oznameni: Coconuts
- Vychozi zvuk budiku: mus_bardlute_01.mp3
- Tony ciselniku: OFF
- Zvuky zamku obrazovky: OFF
- Zvuky pri dotyku: OFF
Ochrana soukromi
- Statistiky: OFF
Zabezpeceni
- Zamek obrazovky: PIN
  - Obrazovka uzamceni: Zobrazit citlivy obsah jen behem odemknuti
- Otisk prstu – nedostupne na zasifrovanem telefonu
- Sifrovani a povereni
  - Sifrovat telefon
  - Instalace z karty SD: curl 'http://ca.vutbr.cz/pki/pub/cacert/cacert.crt' | adb shell "cat > /sdcard/Download/VUT.crt"
Ucty
- (cokoliv)
  - Personal info & privacy
    - Allow apps to find accounts: ON
Pristupnost
- Vypinac ukonci hovor: ON
Tlacitka
- Menu napajeni: ?
- Povolit rozsireny restart: ON

Telefon

…, Nastaveni

Raspberry Pi 4 Model B

Sun, 02 Feb 2020 00:00:00 +0000

Specifications, Documents, Software & OS

LibreELEC

download

DISK=/dev/sda
# download
wget $(curl -s 'https://libreelec.tv/raspberry-pi-4/' | grep -o '[^"]*/LibreELEC-RPi4\.arm-[0-9.]*\.img\.gz[^"]*')
# copy
dd if=LibreELEC-RPi4.arm-*.img of=${DISK} bs=4M status=progress conv=fsync
# expand a storage
echo ", +" | ./sfdisk -N 2 ${DISK}
e2fsck ${DISK}2
resize2fs ${DISK}2
e2fsck ${DISK}2

Controlling PWR and ACT LEDs

possible settings

none No trigger
kbd-scrolllock Keyboard scroll lock
kbd-numlock Keyboard num lock
kbd-capslock Keyboard caps lock
kbd-kanalock Keyboard kana lock
kbd-shiftlock Keyboard shift
kbd-altgrlock Keyboard altgr
kbd-ctrllock Keyboard ctrl
kbd-altlock Keyboard alt
kbd-shiftllock Keyboard left shift
kbd-shiftrlock Keyboard right shift
kbd-ctrlllock Keyboard left ctrl
kbd-ctrlrlock Keyboard right ctrl
timer Flash at 1 second intervals
oneshot Flash only once
heartbeat Flash like a heartbeat (1-0-1-00000)
backlight Always on
gpio Flash when a certain GPIO is high???
cpu0 Flash on cpu0 usage
cpu1 Flash on cpu1 usage
cpu2 Flash on cpu2 usage
cpu3 Flash on cpu3 usage
default-on Always on (except for the halt/power-off)
[input] Default state for PWR (under-voltage detect)
panic Flash on kernel panic
[mmc0] Flash on mmc0 (primary SD Card interface) activity; default for ACT
mmc1 Flash on mmc1 (secondary SD Card interface) activity
rfkill0 Flash on wifi activity
rfkill1 Flash on bluetooth activity

Boot-time

boot-config params and overlays

cat <<END >/boot/config.txt
# SD Card activity
dtparam=act_led_trigger=mmc0
dtparam=act_led_activelow=off
# hearbeat flashing (running) or always on (halt)
dtparam=pwr_led_trigger=heartbeat
dtparam=pwr_led_activelow=off
END

Run-time

## ACT LED
cat /sys/class/leds/led0/trigger
echo mmc0 > /sys/class/leds/led0/trigger
## PWR LED
cat /sys/class/leds/led1/trigger
echo heartbeat > /sys/class/leds/led1/trigger

Power Button

cat <<END >/boot/config.txt
# power-up/power-down by shorting pins 5 and 6 (GPIO3 and GND) together
dtoverlay=gpio-shutdown
END

VZT: Projekty

Fri, 27 Sep 2019 00:00:00 +0000

kudy vední povede reálně, jestli se nepotká s nějakým překladem
jak se vyhnout akustickým přeslechům
jak vyřešit tlumení, prostupy, izolace, těsnění prostupů, úchyty ventilů
detail, výpočet (propojíte trasy přívod-odtah a odpovídají objemově)
spinace pro zvyseny vykon, mozno i bezdratove
obsah: Projektová dokumentace, profese vzduchotechnika

Priklady

Posouzení projektu vzduchotechniky
Návrh VZT - rekuperace + klima
Posouzení návrh rozvodů rekuperace – zlomy potrubi
Posouzení návrh rozvodů rekuperace – napojeni na cidlo vlhkosti v koupelne pro zvednuti vykonu
Posouzení návrhu rekuperace pro jednotku Stiebel LWZ170 – dlouhe rozvody znamenaji ztraty, vice odtahu je tizsich a potreba pro velky objem/vice lidi (do loznice a obyvaku), nejednotny nazor na privod/odtah/nic u spize
Návrh rekuperácie - skrátenie rozvodov? – delku rozvody musi zkontrolovat projektant, digestor ve asi ano, ale s tesnymi klapkami a privodem vzduchu
VZT rozvod pro PD – Sono hadice tlumi, ale i tak v loznici na 50m3/h jsou potreba 2 vstupy, od RD je lepsi plastovy rozvod (cistsi, lepsi prace)
Posouzení návrhu rekuperace – prime propojeni mistnosti nebo pres paterni rozvod znamena preslechy, obývací pokoj 80m3/h
Typ rozvodů pro náš EPD – rychlost 1,1-1,5 m/s je optimum, pres 3 m/s se jit nesmi (ani, kdyz se to k tomu blizi po priskrceni klapkami), lepsi mit klasicky odvody jen z WC/koupelny/kuchyne/satna, protoze stejne jsou vsude vetsinou otevrene dvere (a podrezat dvere)
Posudenie navrhu rozvodov VZT – coanda efekt ne (hluk a zmeny vlhkosti spinici omitku)
Izolace rozvodů VZT v půdním prostor – izolace min 20 cm, hrozi samospad studeny vzduch z pudy a teply vlhky na pudu pri vypnute jednotce
Posouzení projektu vzduchotechniky
Konzultace rozvodů + jednotky
Posouzení a ladění projektu vzduchotechniky – jak daleko odtah v kuchyni od varne desky (blizko hrozni mastnota, daleko zase netahne), do satny dat odtah
posouzeni vzt projektu pro RD – vzorecky, jak se pocitaji nutne objemy vymeny vzduchu pro ruzne mistnosti
posouzení navržených rozvodů rekuperace – cena za projekty na RD DSP za 3-5tis a DPS 7-10tis
Připomínkování projektu vzduchotechniky RD – hlavni vetev staci DN 160, odtah z kuchyne+obyvak aspon 50-80 m3/h (DN 125), udelat odtah ze zadrevi (smrad z bot, nebo pres blizke mistnosti, jako je WC a spiz), za odbočkou je potřeba minimálně metr souběhu a pak odbočit (jinak preslechy)
zhodnocení rozvodů rekuperace - půda, bungalov
- hvězdicový nebo stromový rozvod (nespojovat)
- klapky na regulaci (klapky nepotřebujete při stejných DN hadic a přibližně stejné délce nebo záměrně rozloženými tlakovými ztrátami, kde si cíleně pohrajete s DN a množstvím odporových prvků, ale stejně to pořádně spočítat ani nejde)
- vibrace můžete odchytat až na rovným úseku za jednotkou
- detail výfuku je práce pro projektanta – izolace, parotěsnost, výústní rychlost; ne žaluzie s pohyblivými lamelami (negativně ovlivńují trajektorii výfuku a následky na fasádě)
- revizní tvarovky jsou samostatným prvkem
- na těsnění jsou vhodnější jiné pásky, nez AL, s vyšší pevností a pružností
- projekt za 12.000 Kč musi byt perfektni (obsahovat řezy a detaily)
Návrh VZT rozvodů pro RD po X-té – vetsina realizacnich firem dela hadice, protoze minimum vynaloženého úsilí a odbornosti
Projekt vzduchotechniky - zhodnoceni – misto tlumicu rozdelovaci komoru
Rozvody rekuperace – obyvacko-jidelna potrebuje 150m3/h
Nnavrh rozvodov VZT pre RD z priehradnikov – jak na uplatneni teorie
VZT rozvody RD – izolováno 25mm Isosleeve, proti preslechum V-kus a pak 1 m souběh a teprve následně oddělit do jednotlivých místností, v planu dobre privody ve vetsich mistnostech u oken, DOBRY projekt
Posouzení návrhu rozvodů

Skolni

UTP FS CVUT: Projekt vytapeni

Realizace

Majkíí@Svépomocí.cz: Řízené větrání s rekuperací, Rekuperace

VZT: Rekuperacni jednotka

Fri, 27 Sep 2019 00:00:00 +0000

Vybaveni

vyber rekuperace uroven kvalita/cena/vykon/hlucnost
- pasivni – přehled pasivnich rekuperačních jednotek
- aktivni – nejdostupnější je VPL 15 od Nilanu, v této kategorii bych ale asi doporučil Gott 2600
- kombinovane – VP18 K, ale najdou se i šílenci, co jsou schopni za podobný jednotky se stejnými funkcemi utrácet dvojnásobek a ty jdou do compactu nebo pkom4
Nilan – katalog/obchod a technicka dokumentace

Nilan VP 18 K WT (VZT)

Diskuze

Cirkulace TUV – velke promichavani vody pri cirkulaci (nutno pridat plastove prodlouzeni do otvoru cirkulace, nove typy asi maji), problem s ohrevem TUV, kdyz jednotka netopi ani nechladi (primarne ohriva TUV a pak az reguluje teplotu vzduchu, takze ten tim ohrevem trpi), ale asi jde nastavit

Luna3 Comfort HT 1.120 (kotel/ohrev)

dokumentace vyrobce

Umisteni

Demontáž sádrokartonove predsteny
- nalezt vruty namocenim nebo magnetem, vydlabat a aku-sroubovakem povolit (namocit pro lepsi povoleni) nebo vypacit, kdyz vrut nepovoli
- odrezt desku SDK pomoci odlamovaciho noziku (prvni vryp jde hure, pak uz staci jen rezat), ale pozor na vedeni instalace
odpad se vodnim sifonem max. 30 cm nad zemi (z pozadavku stojaci jednotky)
presun routeru nade dvere technicke, pripadne osazeni patch panelu s uzemenim/stinenim
vyvest uzemeni k internetu/patch panelu/na pudu (uzemene zasuvky na pude), ke kotli, k jednotce
posun elektro-rozvadece ke dverim pod EZS a zasuvek na protejsi stejen do jeho blizkosti (na misto puvodniho rozvadece, pripadne i blizko EZS pro napojeni routeru)

Chlazeni

Adiabaticke chlazeni

Kondenzat

Při výběru centrální rekuperační jednotky řešte i možnosti údržby a servisu. Ušetříte – jednou ročně sifon propláchnout čistou teplou vodou
Odvod kondenzátu při chlazení vzduchu – hadicový sifon v podtlakovém provedení a uprava hadicového sifonu pro přetlakové systémy
Správný odvod kondenzátu klimatizační jednotky PremiAir – výška sifonu musí odpovídat tlaku v dané komoře (výška H = 200 mm odpovídá podtlaku v komoře 950 Pa; v přetlakové části jednotky funguje do přetlaku 1200 Pa při výšce H = 200 mm, popř. až do 2300 Pa při maximálním vytažení)
Doporučení pro montáž a kontrolu odvodu kondenzátu – zajistit správnou výšku sifonu v závislosti na tlaku ventilátoru, zda je sifonu zalitý vodou (neplatí pro sifon s kuličkou), zda není sifon, vana nebo trubka odvodu kondenzátu znečištěna popř. zanesena (kontrola min. 2× ročně), těsnost spojů, zejména spoje mezi odvodní trubičkou z vany a vlastního sifonu; odvodní potrubí nesmí být zaústěno do kanalizačního potrubí přímo, ale přes tzv. odkapnici, tzn. sifon ústí do volné atmosféry

VZT: Rozvody

Fri, 27 Sep 2019 00:00:00 +0000

Cirkulace vzduchu v objektu

lze nemít mezeru pod dveřmi (z důvodu eliminace šíření hluku a pro maximální soukromí v obytných místnostech) pri privodu do mistnosti
- jinak nutno podrezat dvere (pod dvermi cca 5 mm skviru az asi 1-2 cm) nebo udelat v nich vetraci mrizky
potřebujete dostat vzduch od dveří co nejdále, napr. uprostred mistnosti, aby došlo ke kvalitnímu provětrání
- vzduch by se měl co nejdříve dostat z ventilu do prostoru, minimální rychlostí a přesně tam, kam potřebujeme
- speciální vyústky, které dokáží dofouknout vzduch přes místnost v zásadě dvojího typu:
  - ventil je obycejne vyusteni
  - dýza, která vyšší rychlostí dopraví vzduch dále do místnosti (tedy provetra i rohy, větší dosah proudu vzduchu, minimálně 10 m, spíš ale alspon 20 m, mensi zvládá obdélníková vyústka, která je navíc několikanásobně levnější), ale je to soustředěný proud vzduchu, který opravdu může být slyšet a soustředěný proud vzduchu má také svoji dopadovou plochu a tam by nikdo neměl sedět nebo spát – viz Dýza
  - coanda-efekt, tj. přilnutí k ploše stropu, ale lustr je překážka a je po efektu, a z praktického hlediska není dobré, aby se vzduch příliš plazil po stěně (špini)
odvetravani spize – bud neresit a prirozene vetrat mrizkou ve dverich (ne oknem, ktere zpusobi nasavani studeneho vzduchu do VZT), nebo dat slaby privod vzduchu (suchy nevytapeny vzduch, v lete chlazeni)
odsavani v kuchyni dostatecne daleko od varne desky, aby tam nesla mastnota, ale v praxi nemá umístění odtahu valný význam

Nasavani/vydechy mimo dum

výdechy odpadního vzduchu musí být vzdáleny nejméně 1,5 m od nasávacích otvorů venkovního vzduchu (Vyhláška č. 268/2009 Sb., § 37, odst. 2)
nasavani udelat na severni strane (chladny vzduch), ve směru větru by bylo sání a pak výfuk
pokud vyfuk na zapad, tak pozor na smer vetru
ne prostup střechou (rizika, řešení odvodnění výfukového potrubí), ale praktičtější je vodorovné na fasádu po směru větru
osadit vystupni mrizky smerujici vzduch dolu, kvuli zamezeni kondenzace, kdy nejpoužívanější jsou protidešťové žaluzie, vyrábějí se z pozinku (od rozměru tak 355x355 výš), hliníku případně nerezu (od 200x200), plastu (pod 200x200), mohou být komaxitované a vyrábí se ze stavebnic, takže je možný téměř jakýkoliv rozměr, pro výdech možno použít samočinnou žaluzii (např. Multivac ji prodává pod označením WSK) – viz Čím izolovat VZT potrubí
jinou možností je zakončit sání a výdech obloukem 45% s pletivem, který je před fasádou (není příliš vzhledné, ale výhoda v odvodu kondenzátu, nesteka po fasádě) – viz Čím izolovat VZT potrubí

Potrubi

vhodne udelat potrubi ve sklonu a osadit vertikalni mezikus pro odvod kondenzatu tesne u jednotky do vytapeneho prostoru
nižší průměr potrubí znamena vyšší rychlost/hluk/tlakové ztráty a vyšší spotřeba energie
kdyz rozvody hvezdicovitě ušetříte na tlumičích (připlatíte na rozvodech), bude ale snažší případná údržba (ale není to o čištění, rozvody v RD se prakticky nezanášejí a čistit lze oba systémy)
tlumice se davaji na vystup jednotky proti hluku z ni a pak mezi mistnosti proti preslechum, na odtah (zejmena kuchyn, koupelna, WC, satna) jsou zbytecne
nastroje pro vypocty
- TZBInfo: Přepočet průtoku a rychlosti proudění v potrubí

EPE/EPP (HR-WTW/Brink)

ze samozhášivé pružné izolační pěny EPE (stena 16 mm)

ThinkPad T480 (Type 20L5, Model 20L50002MC) Laptop

Sun, 01 Sep 2019 00:00:00 +0000

Windows

Installation from an USB Flash Disk

create a single FAT32 partition in a DOS partition table on the flash disk
copy a content of the installation media into the partition
boot as EFI

System Settings

reduce swap file to 16 MB
disable hibernate file: powercfg -h off
delete resources associated with mounted WIM images that are corrupt: dism /Cleanup-Wim
perform clean-up and recovery operations on the running operating system image with removal of backup files created during service pack installation: dism /Online /Cleanup-Image /spsuperseded
perform clean-up and recovery operations on the running operating system image with removal of all superseded versions of every component in the component store: dism /Online /Cleanup-Image /StartComponentCleanup /ResetBase
enable C:\ compression and disable indexing

Windows 10 x86

Windows 10 Enterprise LTSC: howto, download Eval

Activation

Windows 10 EnterpriseSEval (LTSC Eval) cannot be activated by Key Management Service (KMS) by KMS Client Setup Key
- neither by DISM:
  - Dism /Online /Get-CurrentEdition
  - Dism /Online /Get-TargetEditions
  - Dism /Online /Set-Edition:EnterpriseS /AcceptEula /ProductKey:<win-10-ltsc-product-key>
- nor by SLMGR:
  - cscript slmgr.vbs /dlv
  - cscript slmgr.vbs /ipk <win-10-ltsc-product-key>
- however, it can be rearmed 2 times (each trial period takes 90 days, then the reinstall is required):
  - cscript slmgr.vbs /rearm

Windows 8.1 x64

Windows Embedded 8.1 Industry Pro: download Eval, download MSDN

Network Drivers

The external drivers below are necessary for Windows 8.1.

Acer Aspire 5030

Fri, 26 Jul 2019 00:00:00 +0000

Acer Aspire 5030

Disassembly

similar to ACER 3050 take apart, disassemble, how to open video disassembly
- different power-button pannel – take appart by flippping its left and right side
- different LCD connector – pull towards the LCD (up)

CMOS Battery Replacement

Maxwell ML1220 SM Rechargeable Backup Battery
- Type: Lithium Manganese Dioxide
- Voltage: 3V
- Capacity: 18 mAh
- Height: 2 mm
- Diameter: 12.5 mm
- SM for “surface mount” (with side-pins)
ML1220-SM: 522+85 CZK
ML1220 (non-SM): 190 CZK
Nabíjecí knoflíková Li baterie ML1220 (forum)

Samsung Galaxy Tab S2 9.7 LTE (2016)

Sun, 16 Dec 2018 00:00:00 +0000

Boot Modes

Recovery: With the device powered off, hold Home + Volume Up + Power.
Download: With the device powered off, hold Home + Volume Down + Power.

Unlocking

Enable “OEM unlock” in the “Developer options” under device “Settings”.

TWRP

TWRP for Samsung Galaxy Tab S2 9.7 LTE (2016)

adb reboot bootloader
heimdall flash --RECOVERY twrp-x.x.x-x-gts210vewifi.img --no-reboot
heimdall print-pit

Wiping in TWRP

Backup
Wipe, Format Data
Wipe, Advanced Wipe, Cache+System partitions

LineageOS

Download:
- LineageOS:
  - source code
  - LineageOS official builds are not availabe
  - v15.1 builds (forum)
  - v16.0 builds also at androidfilehost (forum), or at sf.net
  - v17.1 builds
- GoogleApps (arm64; Lineage 14.1 is Android 7.1, Lineage 15.1 is Android 8.1, Lineage 16.0 is Android 9.0)
- SuperSU; LineageOS 16.0 su add-on for amd64 is not available
just for WiFi/non-LTE version:
- Installation instructions
- Device info

adb reboot recovery
adb push lineage-16.0-*-UNOFFICIAL-gts210velte.zip /sdcard/
adb push open_gapps-arm64-9.0-nano-*.zip /sdcard/
adb push *-SuperSU-*.zip /sdcard/
# install all ZIP files in the order above in TWRP

Tools, HowTos

Add more Steps (Higher Granularity) to Volume Slider

adb shell "su -c 'mount -o rw,remount /system && echo ro.config.media_vol_steps=30 >> /system/build.prop; mount -o ro,remount /system'"
# and reboot

F-Droid

Keybase

Fri, 02 Nov 2018 00:00:00 +0000

Initialize Keybase Tool and Filesystem

NixOS

See NixOS options and packages.

services.keybase.enable = true;
services.kbfs.enable = true;

Desktop

systemctl --user start keybase
keybase login ${KB_USER_NAME}
systemctl --user start kbfs
keybase status
# disable journaling so that a sync or close of a file does ensure the data has made it to KBFS servers and will soon be visible to other devices
echo 1 > ~/keybase/.kbfs_disable_auto_journals
cat ~/keybase/private/${KB_USER_NAME}/.kbfs_status

Android Phone

See Google Play.

OpenWRT - Home Access Point

Sun, 14 Oct 2018 00:00:00 +0000

USB Storage

opkg install kmod-usb-storage kmod-fs-ext4 e2fsprogs block-mount

Edit /etc/config/fstab.

config global
	option anon_swap '0'
	option anon_mount '0'
	option auto_swap '1'
	option auto_mount '1'
	option delay_root '5'
	option check_fs '1'

config swap
	option device '/dev/sda1'
	option enabled '1'

config mount
	option device '/dev/sda2'
	option enabled '1'
	option target '/mnt'
	option options 'sync,noatime,nodiratime,nouser_xattr,discard'

HUAWEI Mobile USB Dongle

opkg install kmod-usb-serial-option usb-modeswitch
usb-modeswitch -l
logread -e 'GSM modem'

DNS Crypt Proxy

opkg install dnscrypt-proxy luci-app-dnscrypt-proxy

Use soltysiak proxy server where

Xiaomi Redmi 3S

Sat, 18 Aug 2018 00:00:00 +0000

Boot Modes

Recovery: With the device powered off, hold Volume Up + Volume Down + Power.
Download: With the device powered off, hold Volume Down + Power. Keep holding both buttons until the word “FASTBOOT” appears on the screen, then release.

Unlocking

fastboot oem unlock <token-obtained-from-xiaomi-servers>

TWRP

adb reboot bootloader
fastboot flash recovery twrp-x.x.x-x-land.img
fastboot boot twrp-x.x.x-x-land.img || fastboot reboot

Wiping in TWRP

Backup
Wipe, Format Data
Wipe, Advanced Wipe, Cache+System partitions

Firmware

LineageOS

Download w/MicroG:
- LineageOS+MicroG (Lineage 16.0)
  - Installation instructions
  - The MicroG and F-Droid can be installed also to the official LineageOS by NanoDroid.
- F-Droid repository (already included)
- Aurora Store (a Google’s Play Store alternative)
Download w/GoogleApps:
- LineageOS (Lineage 16.0)
  - Installation instructions
- GoogleApps (arm64; Lineage 16.0 is Android 9.0)
Rooting:
- Magisk (Magisk v19.3 is stable)
- LineageOS su add-on (arm64)
Device info

adb reboot recovery
adb push lineage-*-land-signed.zip /sdcard/
#adb push open_gapps-arm64-*-nano-*.zip /sdcard/
#adb push addonsu-*-arm64-signed.zip /sdcard/
# install all ZIP files in the order above in TWRP

Havoc-OS

Download:
- Havoc-OS (Havoc-OS 2.9)
- GoogleApps (arm64, nano; Havoc-OS 2.9 is Android 9.0)
- Magisk (Magisk v19.3 is stable)
Installation instructions

# backup all the applications and settings
# (wiping encrypted partitions before or re-encrypting the phone after the install will wipe everything)
adb reboot recovery
adb push Havoc-OS-v*-land-Official.zip /sdcard/
adb push open_gapps-arm64-*-nano-*.zip /sdcard/
adb push Magisk-v*.zip /sdcard/
# wipe System, Data, Dalvik, Cache
# install all ZIP files in the order above in TWRP
# reboot, re-encrypt the phone, and restore the backups

MIUI

Software

ForceDoze

Docker Development Server

Thu, 04 Jan 2018 00:00:00 +0000

Install Alpine Linux

download a standard or an extended ISO image
boot the ISO image by IPMI SuperMicro menu “Remote Control/Console Redirection” or “Virtual Media/CD-ROM Image”
login as the root user with an empty password
in the case of Alpine Standard (not Extended) ISO image

# set up network interfaces and start networking
setup-interfaces && /etc/init.d/networking start
# set up APK repository and update its cache
setup-apkrepos -r && apk update

run setup-alpine -f answer-file.sh with the following answer file:

# Use US layout with US variant
KEYMAPOPTS="us us"
# Ask for hostname
HOSTNAMEOPTS=
# Ask for interfaces (autodetect)
INTERFACESOPTS=
# Ask for DNS domain name and nameservers (autodetect)
DNSOPTS=
# Set timezone to UTC
TIMEZONEOPTS="-z Europe/Prague"
# Disable a http/ftp proxy
PROXYOPTS=none
# Detect and add fastest mirror
APKREPOSOPTS="-f"
# Install OpenSSH
SSHDOPTS="-c openssh"
# Use busybox NTP daemon
NTPOPTS="-c busybox"
# Ask for a disk where to permanently install Alpine; create root / btrfs-partition and non-UEFI /boot ext4-partition
DISKOPTS="-m sys -v"
export BOOTFS="ext4"
export ROOTFS="btrfs"

Configure Alpine Linux

# Add a user
adduser -g "${USERGIVENNAME} ${USERSURNAME}" -G users ${USERNAME}
# Enable the root filesystem compression for btrfs (it seems that fstab is ignored for /, so we remount it by init.d)
sed -i 's|\(/\s\+btrfs\s\+[^ \t]\+\)|\1,compress=zlib|' /etc/fstab
cat >/etc/local.d/root-remount-compress.start <<END
#!/bin/sh
exec mount / -o remount,compress=zlib
END
chmod 755 /etc/local.d/root-remount-compress.start
rc-service local start && rc-update add local default
# Remove a welcome message banner
rm /etc/motd
# Enable additional package repositories and updgrade the system
sed -i -e 's|^#\(.*/v[0-9.]\+/community\)$|\1|g' -e 's|^#\(.*/edge/main\)$|@edge \1|g' -e 's|^#\(.*/edge/community\)$|@community \1|g' -e 's|^#\(.*/edge/testing\)$|@testing \1|g' /etc/apk/repositories
apk update && apk upgrade --latest
# Install bash-completion
apk add bash-completion
# Set ssmtp MTA forwarder
setup-mta
# Install fail2ban for SSHd protection
apk add fail2ban && rc-service fail2ban start && rc-update add fail2ban default
# Install logrotate for /var/log management
apk add logrotate && rc-service crond restart
# Install an IPMI support
apk add ipmitool && rc-service ipmievd start && rc-update add ipmievd default
# Install lm_sensors and dmidecode for HW sensors/IPMI monitoring and fancontrol
apk add lm_sensors lm_sensors-sensord dmidecode
apk add --virtual lm_sensors-detect-deps lm_sensors-detect
modprobe i2c-dev && echo i2c-dev >> /etc/modules
modprobe eeprom && echo eeprom >> /etc/modules
sensors-detect
apk del lm_sensors-detect-deps
rc-service sensord start && rc-update add sensord default
pwmconfig
rc-service fancontrol start && rc-update add fancontrol default
# Install smartmontools for HDD monitoring with reporting by an email
apk add smartmontools
rc-service smartd start && rc-update add smartd default
# Install Docker and docker-compose
apk add docker docker-bash-completion && rc-service docker start && rc-update add docker boot
apk add py-pip && pip install docker-compose
# Install git
apk add git git-bash-completion
# Add the user to new groups
for I in audio cdrom floppy games usb video wheel docker; do adduser ${USERNAME} ${I}; done

Configure Firewall

apk add ufw@testing
ufw default deny incoming
ufw default allow outgoing
ufw allow in ssh
ufw limit ssh
ufw allow in http
ufw allow in https
ufw allow in 1521
ufw allow in 2222
ufw limit 2222
ufw allow in 2223
ufw limit 2223
echo y | ufw enable
ufw status verbose

Configure Docker Compose

create a docker-compose service /etc/init.d/docker-compose

#!/sbin/openrc-run
# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

description="Docker Compose"
description_reload="Reload services"

extra_started_commands="reload"

: ${DOCKERCOMPOSE_PROJECT_NAME:=boot}
: ${DOCKERCOMPOSE_YAMLFILE:=/etc/docker-compose/docker-compose.yml}
: ${DOCKERCOMPOSE_OPTS:=-f $DOCKERCOMPOSE_YAMLFILE -p $DOCKERCOMPOSE_PROJECT_NAME}
: ${DOCKERCOMPOSE_UPOPTS:=-d --no-recreate --no-build --no-deps}

depend() {
 use docker
}

start() {
 ebegin "Starting ${SVCNAME}"
 docker-compose $DOCKERCOMPOSE_OPTS up $DOCKERCOMPOSE_UPOPTS
 eend $?
}

stop() {
 ebegin "Stopping ${SVCNAME}"
 docker-compose $DOCKERCOMPOSE_OPTS stop
 eend $?
}

reload() {
 ebegin "Reloading ${SVCNAME}"
 docker-compose $DOCKERCOMPOSE_OPTS up $DOCKERCOMPOSE_UPOPTS
 eend $?
}

create its environment file /etc/conf.d/docker-compose

# /etc/conf.d/docker-compose: config file for /etc/init.d/docker-compose

# an alternate project name
#DOCKERCOMPOSE_PROJECT_NAME=boot

# an alternate compose file
#DOCKERCOMPOSE_YAMLFILE=/etc/docker-compose/docker-compose.yml

# how to create and start containers
#DOCKERCOMPOSE_UPOPTS=-d --no-recreate --no-build --no-deps

run the service

chmod 755 /etc/init.d/docker-compose
rc-service docker-compose start && rc-update add docker-compose default

Install Git Annex

crate a script /usr/local/bin/git-annex.linux-update.sh to install git-annex static binaries

#!/bin/sh

DIR=/opt/git-annex.linux
DOWNLOAD=/tmp/git-annex-standalone-amd64.tar.gz

wget "https://downloads.kitenet.net/git-annex/linux/current/git-annex-standalone-amd64.tar.gz" -O ${DOWNLOAD} \
&& rm -rf ${DIR} \
&& tar xzf ${DOWNLOAD} -C ${DIR%/*} \
&& rm ${DOWNLOAD}

ln -vs ${DIR}/git-annex ${DIR}/git-annex-shell /usr/bin

HTTP/HTTPs Reverse Proxy/Load Balancer to Docker Containers

See Træfik HTTP reverse proxy and load balancer.

ARIS at RedHat Enterprise Linux

Thu, 02 Nov 2017 00:00:00 +0000

Install RPM packages and start ACA (linux)

/etc/init.d/ArisCloudagent10 stop
yum -y remove aris10-acc aris10-cloud-agent aris10-scriptrunner aris10adm
cd ARIS_DVD-10.*/Setups/Linux_RedHat
aris_force_install=1 rpm -i ARIS_Agent/*.rpm ARIS_Cloud_Controller/*.rpm ARIS_Admin/*.rpm ARIS_Scriptrunner/*.rpm
sed -i 's/\(nofile\s*\)[0-9]*$/\165536/g' /etc/security/limits.d/40-aris10.conf
echo "aris10 soft memlock unlimited" >> /etc/security/limits.d/40-aris10.conf
echo "aris10 hard memlock unlimited" >> /etc/security/limits.d/40-aris10.conf
/etc/init.d/ArisCloudagent10 start
tail /home/ARIS10/cloudagent/log/agent.log

Install ARIS Connect Server (windows)

cd ARIS_DVD-10.*\Setups\Windows\ARIS_Server
setup.exe

Next
I accept the terms of the license agreement
Install ARIS Server on remote computer:
ARIS Connect (only)
Next (no external IP, we will use a hostname which is also in a SSL certificte for HTTP)
Next (no change of the agent user credentials; we will restrict ACA port 14000 at a firewall)
Next (default port numbers)
Medium (~50 users)
Import license now
Stardard DBMS
SMTP server hostname, port, and sender
Next (no proxy)
Start automatically
Install

Start the server (linux)

disable ACA authentication and restrict it to localhost clients
bind elastic_m to IPv4 address (there is bug in IPv6 binding which causes BindException because the usage of a non-existing IPv6 address)
in case of “Runnable apg_m is FAILED.” becasue of “Port already in use: 14426” or “Address already in use” exception, just wait and try again

/etc/init.d/ArisCloudagent10 stop
echo "disable.authentication=true" >> /home/ARIS10/cloudagent/agent.cfg
echo "rest.local.connections.only=true" >> /home/ARIS10/cloudagent/agent.cfg
/etc/init.d/ArisCloudagent10 start
echo "ELASTICSEARCH.network.host=_local_,$(ip addr show dev eno1 | grep -o 'inet [0-9.]\+' | cut -d ' ' -f 2)" >> /home/ARIS10/cloudagent/work/work_elastic_m/runnable.properties
acc10.sh -h localhost startall

Set HTTPS/SSL certificate (linux)

certificate.crt should be in POM format, not in DER format, so do not use openssl x509 -outform der -in /etc/letsencrypt/live/$(hostname -f)/cert.pem -out ssl-cert/certificate.crt

cd /home/ARIS10
mkdir -p ssl-cert
rm -f ssl-cert/*
cp /etc/letsencrypt/live/$(hostname -f)/fullchain.pem ssl-cert/certificate.crt
cp /etc/letsencrypt/live/$(hostname -f)/privkey.pem ssl-cert/certificate.key
cd ssl-cert
zip -9 ../ssl-cert.zip *
cd -
acc10.sh -h localhost stop loadbalancer_m
acc10.sh -h localhost enhance loadbalancer_m with sslCertificate local file "/home/ARIS10/ssl-cert.zip"
acc10.sh -h localhost start loadbalancer_m

Configuration via Web interface

Login by default username “system” and password “manager”.
Edit default users and change their passwords:
- “system” user with default password “manager”
- “superuser” user with default password “superuser”
- “guest” user
Import licences.
Create user groups ‘users’ (all licence privileges) and ‘admins’ (all fucntion privileges).

ARIS management by CLI tools

Create a new user and assign him/her to “users” gourp

/home/ARIS10/cloudagent/work/work_umcadmin_m/tools/bin/y-tenantmgmt.sh -s https://localhost:1443/ createUser -u system -p manager \
-au ${NEW_USER_USERNAME} -ae ${NEW_USER_EMAIL} -af ${NEW_USER_FNAME} -al ${NEW_USER_LNAME} -ap ${NEW_USER_PASS}
/home/ARIS10/cloudagent/work/work_umcadmin_m/tools/bin/y-tenantmgmt.sh -s https://localhost:1443/ assignUser -u system -p manager \
-au ${NEW_USER_USERNAME} -ag users

Create a new database

/home/ARIS10/cloudagent/work/work_abs_m/tools/arisadm/arisadm.sh

Launch ARIS client JAR files (linux)

ARIS client will use directory ${ARIS_HOME}/ARIS10 to store downloaded artefacts
the client is looking for “javaw.exe” and “java.exe” in Java system property “sun.boot.library.path”, however, it is executing the enquoted filepath (e.g., ${JAVA_HOME}/jre/lib/amd64/javaw.exe) not as a path but as a filename in directory ${ARIS_HOME}/ARIS10/DownloadClient/${SERVER_IP}, so it results into IOException “No such file or directory” (fix by a symlink to ${JAVA_HOME}/bin/java doest not help)

ARIS_HOME="${HOME}"
java -DARISuser.home=${ARIS_HOME} -jar ARIS_*_default.jar
# error

Mounting of a Loop Device Failed: Unknown Error -1

Fri, 06 Oct 2017 00:00:00 +0000

# LC_ALL=C mount /tmp/partition.img partition-mp -o loop -t auto
mount: system: mount failed: Unknown error -1
# modprobe loop
# LC_ALL=C mount /tmp/partition.img partition-mp -o loop -t auto
(OK)

Using Oracle UTL_SMTP to send emails via TLS

Tue, 26 Sep 2017 00:00:00 +0000

SSL/TLS requires an Oracle wallet with a SMTP server certificate

Get a STMP Server TLS Certificate and a Corresponding CA Certificate

echo QUIT | openssl s_client -connect smtp.fit.vutbr.cz:25 -starttls smtp 2>/dev/null | openssl x509 -text > smtp_tls.pem
wget -O root-ca.pem 'http://ca.vutbr.cz/pki/pub/cacert/cacert.pem'

Create Oracle Wallet with the Certificates

EWALLETDIR=/home/oracle
EWALLET=smtp_wallet.p12
PASS=1a2b3c4d
ORAPKI=$(ls /u01/app/oracle/product/*/*/bin/orapki | head -1)
# create a PKCS12 wallet with a user certificate
openssl pkcs12 -export -in "smtp_tls.pem" -out "${EWALLET}" -name "smtp_tls" -password "pass:${PASS}"
# add a trusted self-signed root certificate into the wallet
${ORAPKI} wallet add -wallet "${EWALLETDIR}" -pwd "${PASS}" -cert "root-ca" -trusted_cert
# enable auto-login by the wallet
${ORAPKI} wallet create -wallet "${EWALLETDIR}" -pwd "${PASS}" -auto_login
# display the wallet
${ORAPKI} wallet display -wallet "${EWALLETDIR}" -pwd "${PASS}" -complete

Use the Wallet in PL/SQL

declare
 l_connection utl_smtp.connection;
begin
 l_connection := utl_smtp.open_connection(
 host => 'smtp.fit.vutbr.cz',
 port => 25,
 wallet_path => 'file:/home/oracle/smtp_wallet',
 wallet_password => '1a2b3c4d',
 secure_connection_before_smtp => false);
 utl_smtp.ehlo(l_connection, 'smtp.fit.vutbr.cz');
 utl_smtp.starttls(l_connection);
 utl_smtp.auth(l_connection, 'username', 'userpassword');
end;

Oracle EM Express HTTPS Certificate

Mon, 11 Sep 2017 00:00:00 +0000

Problem

Oracle EM Express provided by Oracle XML DB (by enhancements in Oracle Database 12c) is securing HTTPS connections by a self-signed certificate in ${ORACLE_BASE}/admin/${ORACLE_SID}/xdb_wallet.

The certificate in the wallet is generated, if it does not exist or is not valid, by exec dbms_xdb_admin.installdefaultwallet; with a randomly generated password.

Fix

A User-defined Let’s Encrypt Certificate

Currently, any user-defined certificate/wallet is replaced by a new default generated wallet due to bug 21959488.

#!/bin/sh
LEDIR="/etc/letsencrypt/live/${HOSTNAME}"
NAME="${ORACLE_SID}" # the unique database name
EWALLETDIR="${ORACLE_BASE}/admin/${NAME}/xdb_wallet" # XDB wallet is stored here
EWALLET=ewallet.p12
PASS=1a2b3c4d
ROOTFILE=root.pem
INTERMEDIATEFILE=intermediate.pem
ORAPKI="${ORACLE_HOME}/bin/orapki"
# create a PKCS12 wallet with a user certificate
openssl pkcs12 -export -in "${LEDIR}/cert.pem" -inkey "${LEDIR}/privkey.pem" -out "${EWALLET}" -name "${NAME}" -password "pass:${PASS}"
# add a trusted self-signed root certificate into the wallet
wget -O "${ROOTFILE}" "https://letsencrypt.org/certs/isrgrootx1.pem.txt"
${ORAPKI} wallet add -wallet "${EWALLETDIR}" -pwd "${PASS}" -cert "${ROOTFILE}" -trusted_cert
# add a trusted intermidiate certificate into the wallet
wget -O "${INTERMEDIATEFILE}" "https://letsencrypt.org/certs/letsencryptauthorityx3.pem.txt"
${ORAPKI} wallet add -wallet "${EWALLETDIR}" -pwd "${PASS}" -cert "${INTERMEDIATEFILE}" -trusted_cert
# enable auto-login by the wallet
${ORAPKI} wallet create -wallet "${EWALLETDIR}" -pwd "${PASS}" -auto_login
# display the wallet
${ORAPKI} wallet display -wallet "${EWALLETDIR}" -pwd "${PASS}" -complete

Disable HSTS in a Web-browser

Delete EM domain name in HTTP Strict Transport Security Settings.

ARIS and an External LDAP Authentication

Tue, 13 Sep 2016 00:00:00 +0000

ARIS 7.1

Run “ARIS IT Architect” and select “Administration”.
Clik for a context menu of a database and select action “Properties”.
Set the following configuration values:
- Authentication system: LDAP system
- LDAP system / Connection / Host information:
  - Address: ldap.fit.vutbr.cz
  - Use SSL: false
  - Port: 389
  - Base DN: dc=vutbr,dc=cz
  - User base DN: dc=fit,dc=vutbr,dc=cz
- LDAP system / Identification attributes:
  - LDAP user ID: uid
  - LDAP group ID: ou
- LDAP system / User attribute mapping:
  - Address: <postalAddress>
  - Company: <o>
  - Descriptino/Definition: <title>
  - E-Mail address: <mail>
  - Full name: <cn>
  - Home page: <url>
  - Identifier: <uid>
  - Name: <uid>
  - Organizational unit: <ou>
  - Telephone number: <telephoneNumber>
- LDAP system / Filtres:
  - Log in: (&(uid={0})(objectClass=posixAccount))
  - Import usres: (objectClass=posixAccount)
  - Map user groups: true / Via LDAP users / Attribute: gitNumber
  - Mapping: (objectClass=posixAccount)

ARIS 9.8

Open ARIS User Management, Configuration tab.
Select “LDAP” configuration.
Set the following configuration values:
- Connection:
  - Activate LDAP: true
  - Server URL: ldap://ldap.fit.vutbr.cz:389
  - Use SSL: false
- Group attribute mappings:
  - Name: ou
- User attribute mapping:
  - Name: uid
- Behavior:
  - User object class: posixAccount
  - ???

Plíseň révy vinné (peronospora, Plasmopara viticola)

Wed, 10 Aug 2016 00:00:00 +0000

choroba Plíseň révy vinné / Downy mildew
způsobená Plíseň révová / Plasmopara viticola

Výskyt

během 24 hodin spadlo alespoň 10 mm srážek a teplota byla okolo 20 °C (při teplotách nad 30 °C se perenospoře už nedaří) – zdroj

Prevence

udržovat provzdušněný porost, likvidovat napadané a opadané listy – zdroj
postřik Alginure, koncentrace 1 % (100 ml/10 l vody za 145 Kč), opakovat v intervalech přibližně 7-14 dnů, nemá ochrannou lhůtu, výrobce Biocont
fungicidy – zdroj:
- kontaktně a preventivně působící fungicidy: Antre 70 WG, Areva Combi, Cabrio Top, Dithane DG Neotec, Folpan 80 WG, Manfil 80 WP, Novozir MN 80 New, Pergado F, Polyram WG, aj. (přípravky s účinnou látkou folpet: Areva Combi, Folpan aj. zpevňují pletiva a zvyšují odolnost proti padlí, omezují výskyt šedé hniloby květenství a neomezují populace dravého roztoče Typhlodromus pyri)
- při silném infekčním tlaku je vhodnější aplikovat kombinované fungicidy: Acrobat MZ WG, Cassiopee 79 WG, Curzate Gold, Curzate M WG, Drago, Fantic F, Forum Star, Melody Combi 65,3 WG, Profiler, Ridomil Gold Combi Pepite, Tanos 50 WG, Valis M, Verita, Zetanil WG, aj., které při doporučené dávce zajistí dlouhou dobu účinnost a dobrou ochranu nově narůstajících částí (systémové nebo hloubkové působení)

Léčba

měďnaté přípravky: Cuprocaffaro Mickro, Cuproxat SC, Defender, Flowbrix, Funguran-OH 50 WP, Champion 50 WP, Kocide 2000, Kuprikol 250 SC, Kuprikol 50, aj. je vhodnější aplikovat až v závěru vegetace – zdroj

git-lfs

Fri, 08 Jul 2016 00:00:00 +0000

git-lfs

Enable git-lfs in a repository

## initialize git-lfs with disabled a smudge filter linking git-lfs commands to git commands
git lfs install --skip-smudge

Pull git-lfs repository

## git-lfs works with https (non-ssh) remotes only
git lfs fetch origin-https && git lfs checkout

Push git-lfs repository

## git-lfs works with https (non-ssh) remotes only
git lfs push origin-https

git-annex

Tue, 24 May 2016 00:00:00 +0000

Create a repository

cd ~
git clone git@gitlab.com:rychly/git-annex.git \
|| ( mkdir git-annex && git --git-dir=git-annex init )
cd git-annex
git annex init --version=6

Configure the repository

git annex describe <name> <description> – changes the description of the repository
git annex wanted <name> [expression] – gets/sets preferred content expression in this repository
git annex group <name> <groupname> – adds the repository to a group (e.g., into one of standard groups)
git annex schedule <name> [expression] – gets/sets scheduled jobs (expression is “fsck self” or “fsck UUID” action, where UUID is the UUID of a remote to fsck, followed by the duration to allow the action to run, and finally the schedule of when to run it)
git annex trust <name> – the repository is trusted to not unexpectedly lose content
git annex untrust <name> – the repository is not trusted and could lose content at any time
git config remote.<name>.annex-cost <double> – sets cost of annexed files transfers, repos with lower costs are preferred (defaults are 100 for local repositories and 200 for remote repositories)
git config remote.<name>.annex-cost-command <command> – the command is run, and the number it outputs is used as the cost
git config remote.<name>.annex-ignore true – prevents git-annex from storing (syncing) file contents on this remote by default (–from and –to options still work)
git config remote.<name>.annex-sync false – prevents git-annex sync (and the git-annex assistant) from syncing with this remote
git config annex.ssh-options '-o ForwardX11=no' – does not attempt forward X11 requests when using ssh to talk to all remotes

Set basic remotes in the repository

cd ~/git-annex
## disable X11 forwarding in ssh connections
git config annex.ssh-options '-o ForwardX11=no'
## require more than one copy of a file exists
git annex numcopies 2
## set local repository
git annex group . 'client'
git annex wanted . 'standard'
git annex schedule . 'fsck self 10m every day at any time'
## set GitLab.com LFS to enable a transfer mode
git annex describe origin GitLab.com
git annex wanted origin 'standard'
git annex group origin 'transfer'

Set an encrypted SSH remote bare Git repository as a backup storage

${USER} is the current username (both for the local and the remote)
${REMOTE_HOST} is the remote host-name
${REMOTE_REPO} is the remote repository directory-name
${GPG_KEY_ID} is a gpg key id, ususally an email

Remote

## install git-annex
sudo yum install git-annex -y
## initialize a bare Git repository
git init --bare /home/${USER}/${REMOTE_REPO}.git

Local

## install git-remote-gcrypt
sudo emerge -av dev-vcs/git-remote-gcrypt
## get a gpg key id
gpg --list-keys || gpg --gen-key
## enabel or add gcrypt remote in a backup mode
git annex enableremote ${REMOTE_HOST} \
|| git annex initremote ${REMOTE_HOST} type=gcrypt \
 gitrepo=ssh://${USER}@${REMOTE_HOST}/home/${USER}/${REMOTE_REPO}.git \
 keyid=${GPG_KEY_ID}
git annex describe ${REMOTE_HOST} "gcrypt:${USER}@${REMOTE_HOST}:~/${REMOTE_REPO}.git"
git annex wanted ${REMOTE_HOST} 'include=*'
git annex group ${REMOTE_HOST} 'backup'
git config remote.${REMOTE_HOST}.annex-cost 150

Set Mega.nz remote as a backup storage

## add/enable Mega.nz remote in a backup mode
USERNAME="USER" PASSWORD="PASSWORD" ( git annex enableremote mega \
|| git annex initremote -d mega \
type=external externaltype=mega encryption=none folder=git-annex )
git annex describe mega 'Mega.nz'
git annex wanted mega 'include=*'
git annex group mega 'backup'
git config remote.mega.annex-cost 300
git config remote.mega.annex-ignore true

Enable synchronization requests via Jabber/XMPP

## add XMPP remote
echo 'XMPPCreds {xmppUsername = "USER", xmppPassword = "PASSWORD",\
 xmppHostname = "xmpp.l.google.com.", xmppPort = 5222,\
 xmppJID = "USER@gmail.com"}' > .git/annex/creds/xmpp
chmod 600 .git/annex/creds/xmpp
# and configure it via webapp in Configuration / Jabber account

Sample `.git/config` file

[core]
	repositoryformatversion = 0
	filemode = true
	bare = false
	logallrefupdates = true
[annex]
	uuid = xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
	version = 6
	ssh-options = -o ForwardX11=no
[filter "annex"]
	smudge = git-annex smudge %f
	clean = git-annex smudge --clean %f
[branch "master"]
	remote = origin
	merge = refs/heads/master
[remote "origin"]
	url = git@gitlab.com:gitlab-user/repo-name.git
	fetch = +refs/heads/*:refs/remotes/origin/*
	annex-uuid = xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
[remote "mega"]
	annex-externaltype = mega
	annex-uuid = xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
	annex-availability = GloballyAvailable
	annex-cost = 300
	annex-ignore = true
[remote "${REMOTE_HOST}"]
	url = gcrypt::ssh://${USER}@${REMOTE_HOST}/home/${USER}/${REMOTE_REPO}.git
	fetch = +refs/heads/*:refs/remotes/gort/*
	gcrypt-participants = XXXXXXXXXXXXXXXX
	gcrypt-signingkey = XXXXXXXXXXXXXXXX
	gcrypt-publish-participants = true
	gcrypt-id = :id:xxxxxxxxxxxxxxxxxxxx
	annex-gcrypt = shell
	annex-uuid = xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
	annex-cost = 150

Version 6 (locked and unlocked files, annex.thin)

In a v6 repositoring, the locking mode of files is stored and synchronized through repositories.

Energy eReader Pro +

Thu, 14 Apr 2016 00:00:00 +0000

Technical Sheet – same as
- Boyue T62+
- Onyx Boox C67ML Carta
Technical Support
Shop:
- Energy Sistem: EU seller (Spain), 3 year warranty, 129 EUR + 16 EUR shipping = 145 EUR (4000 CZK) incl. EU tax; see Energy Sistem eReaderPro+ e-ink display issue
- Amazon.de: EU delivery, 148 EUR
- Amazon.co.uk: UK delivery only
- Alza.cz: 3890 CZK
- levneElektro.cz: 3690 CZK

Customization

Bootloader & Firmware

HowTo

Russian customisations, custom firmwares and applications, etc.
MobileRead
official
- Energy Sistem E-readers Serie Pro / Pro+ (official)

Reader Apps

FBReader for NST(G) with its source-code

Firmware Upgrade

put update.zip file into the root directory of a microSD card
reset the device’s configuration by Settings menu, then Backup & Reset, then Reset tablet (you will loose all of your settings, data and apps)
wait for upgrade notice on the next boot

Reset UI (touchscreen, etc.)

press the reset button (the small hole next to the micro USB connector; needs a paper clip) while holding down the screen refresh button (the top left button)
keep pressing the screen refresh button so that it is still pressed as the device reboots
the device will reboot with a robot lying on it’s back, stomach door open and an exclamation mark
release the screen refresh button and press just the reset button

Developer Mode

open Settings menu and then Tablet information
click four-times on the build number item

Bootloader Mode

connect the device to a PC

AXIS 207MW Network Camera

Tue, 15 Mar 2016 00:00:00 +0000

Video Streams

ffplay -f mjpeg -probesize 32 -i
‘http://username:password@ipcamera/mjpg/video.mjpg?resolution=1280x1024’ ~~~

MPEG-4 stream

mpv ‘rtsp://username:password@ipcamera/mpeg4/media.amp’ ~~~

MPEG-4 stream to a virtual V4L2 camera

modprobe v4l2loopback && ffmpeg -i
‘rtsp://username:password@ipcamera/mpeg4/media.amp’ -f v4l2 /dev/video1 ~~~

Barnes&Noble Nook

Mon, 23 Nov 2015 00:00:00 +0000

NOOK Simple Touch with GlowLight

Alza.cz: 4299.00 CZK
- alternative: Barnes&Noble: $139 + $20 (Shipito/Airmail Priority) = $159 = 3240 CZK + 670 CZK (duty) + 180 CZK (duty paid by cpost.cz) = 4090.00 CZK
NOOK Simple Touch with GlowLight
Hardware w/o GlowLight: NookDevs, Wikipedia
Storage:
- internal: 2GB (1GB for content; 750 MB reserved for B&N content; chip SanDisk SDIN5D2-2G)
- external: a microSD or microSDHC card with a storage capacity of up to 32 GB; class 2/4/6 are supported; formatted with a FAT32/FAT16 file system

Hardware

Disassembly:
- Nook Simple Touch with GlowLight Teardown
- Cracking Open the Nook Simple Touch with GlowLight
HW components:
- 3.7V, 1530mAh for 5.66Wh Li-ion battery (model: MLP305787)
- 6-inch Pearl e-ink screen with Neonode zForce touchscreen
- 800MHz Texas Instruments OMAP3621 applications processor
- Samsung K4X2G323PC-8GD8 256MB mobile DDR SDRAM
- Samsung KLM2G1HE3F-B001 2GB eMMC NAND flash storage module
- Lattice Semiconductor ispMACH 4032ZE CPLD
- Texas Instruments CD74HC4067 High Speed CMOS 16-Channel Analog Multiplexer/Demultiplexer
- Texas Instruments TPS65921B Integrated Power Management IC with USB HS Transceiver
- Texas Instruments TPS65181 Power Management IC for E Ink Vizplex Enabled Electronic Paper Display
- Jorjin Technologies WG7310-2A 802.11b/g/n Wi-Fi SiP module
- CKP TI A3T9
- Texas Instruments BQ27520 System-Side Impedance Track Fuel Gauge
- Texas Instruments 2624I
- Texas Instruments MSP430F2272 16-bit Ultra-Low-Power Microcontroller
- Texas Instruments YE04 18K G4 A919
- Texas Instruments HP4067 1AK G4 D024

Firmware

firmware:
- the latest: BN NST and NST-GL, v1.2.2
- BN NST and NST-GL, v1.2.1
- Barnes&Noble (official, w/o GlowLight)
SD-card images:
- Noogie (mounts the internal memory of a NST as USB-Drive), NeoNoogie
- mali100’s nook touch ClockWork disks (CWR install_cwm_recovery_*.zip and CWM sd_128mb_clockwork-*.zip), mirror
uImages (kernels):
- NST kernel, multitouch, usbhost, usb drivers, removed power check, based on 1.1.5 or the same w/power check (both support GlowLight)
uRamdisks:
- GabrialDestruir’s (ADB over USB enabled)
- Yura80’s (ADB over USB enabled, compatible with usbhost) – see homelessghost’s
ClockWork scripts/packages:
- tinynoot-1-of-2.zip, tinynoot-2-of-2.zip – roustabout’s tinynoot which use stock uRamdisk and contains: su and busybox, Nook Color Tools in /system (so that nonmarket-apps can be installed), ADB wireless, ADW launcher, Amazon appstore (so there’s at least once source of “easy” apps), Button Savior, Nook Touch Tools, Supermanager, and the Busybox updater interface
- glownooter-1-5-26.zip – GabrialDestruir’s GlowNooter which enables ADB via uRamdisk and conains: su and Superuser, Busybox & Busybox Installer/Uninstaller, NookColor Tools (to enable non-market installs), adbWireless, ADW + E-ink Friendly Theme, Amazon Marketplace, Button Savior, Gapps (Gmail, Market, Youtube, others)
- beta5-1XWUMFTouch-PART-2-END.zip – fix Market issues with GlowNooter

Customisation

Soft-rooting
Tips and mods
- the latest: Firmware Barnes & Noble NOOK (The Simple Touch Reader) in Russian, read Section “for advanced users”
- Really removing all B&N apps – see also nmyshkin’s NST
- Rooted Nook Touch with GlowLight Review, Plus Tips and Tricks
- Category BN Nook Simple Touch at xdaDevelopers (host mode, directory tree, etc.)
- Howto get your Nook to be an MP3 player (OTG Adapter needed)
- how to disable the touchscreen while reading
- Renate’s Nook apps and a thread for USB-host
- n-button mapping (based on Renate’s work on NST)
- a graph of B&N apps dependencies
- Nook Simple Touch ereader: slimming down
software can be downloaded from
- Amazon Appstore – available from TinyNoot root
- Google Apps – available from GlowNooter (otherwise, you will need an another Android device registered in Google to dowload *.apk files manually)
- Alternative Android Appstores – available via web-pages
useful apps from Google Market/Plus:
- Cool Reader, Moon Reader
- ezPDF Reader
- ReLaunch – simple and task filemanager
- wencent’s VNC server (set keyboard device “/dev/input/event0” and touch device “/dev/input/event2”)
- Google eBooks
- NMAP application nad a GUI in android
- ZImperium’s Android Network Toolkit (zAnti)
useful apps from projects’ web-pages:
- ReLaunch
- NoRefreshToggle
- Netmite App J2ME Runner
- GoogleContactsSyncAdapter.apk
- hkeyboard.apk (see howto)
- DroidSSHd (for SFTP/SCP copy sftp-server into /data/data/br.com.bott.droidsshd/files/bin/sftp-server and ssh+scp into /system/xbin/)
- GPS location emulator
- sqlite3
- Lucky Patcher
- ScummVM
lists of another useful apps:
- Nook Touch Working Apps List
- Apps that play videos
- Turn Your Rooted Nook Into the Ultimate Ereader with These 10 Apps
- APKtool – decompiler of *.apk files, Manifest need to be copied manually (unzip & cp)
- IMEI Generator (needed for setting static IMEI, otherwise it is autogenerated randomly by Nook)

Settings

By command sqlite3 /data/data/com.android.providers.settings/databases/settings.db, the following settings can be done

Lenovo ThinkPad X301

Sat, 31 Oct 2015 00:00:00 +0000

Hacking

Windows

BIOS+MBR (BIOS+GPT is not supported in Windows)

Huawei E173s-1 USB 3G Modem

Tue, 15 Jul 2014 00:00:00 +0000

Product Page: white version, black version
HW specification
T-Mobile.cz – firmware revision 21.015.03.04.55, voice feature is not supported, SIM lock status is unlocked

Linux Support

Linux kernel modules usbserial, usb_wwan
GSM modem (1-port) converters attached to
- /dev/ttyUSB0 (AT commands),
- /dev/ttyUSB1 (data),
- /dev/USB2 (status & AT commands)
for AT commands use microcom (exit by ~x):
- busybox microcom /dev/ttyUSB{0,2}
- microcom -D/dev/ttyUSB{0,2}

AT Commands

sudo su -c "chmod -v 666 /dev/ttyUSB2"
nix-shell -p minicom --run "minicom -D /dev/ttyUSB2"
# (press Ctrl+ae to enable echo; press Ctrl+aq to exit)

Sending SMS

## ping
AT
# < OK
## enable error reporting (CMEE) and registration and location/network cell information (CREG); disable BOOT reporting
ATE0+CMEE=1;+CREG=2;^BOOT=0,0
# < OK
## pin
AT+CPIN?
# < +CPIN: READY
# < OK
## perform network scan (MNC+MCC is the 4th value in the resulting quintuples)
AT+COPS=?
# < +COPS: (2,"EUROTEL - CZ","ET - CZ","23002",0),(3,"Vodafone CZ","Vodafone","23003",0),(3,"T-Mobile CZ","TMO CZ","23001",0),,(0,1,2,3,4),(0,1,2)
# < OK
## signal strength indicator (RSSI dB = -113 + 2 * 1st_value; -109 to -95 is Marginal, -93 to -85 is OK, -83 to -75 is Good, -73 to -53 is Excellent)
AT+CSQ
# < +CSQ: 27,99
# < OK
## is registered to the network (the 1st value is the registration status; the 2nd is access technology; the 3rd value is Location area code; the 4th value is Cell ID)
## registration status: 0 not registered, 1 registered in home, 2 not registered and searching, 3 registration denied, 4 unknown, 5 registered and roaming
## access technology: 0 GSM; 1 GSM Compact; 2 UTRAN; 3 GSM w/EGPRS; 4 UTRAN w/HSDPA; 5 UTRAN w/HSUPA; 6 UTRAN w/HSDPA and HSUPA; 7 E-UTRAN
AT+CREG?
# < +CREG: 2,1,71F,6DF9
# < OK
## check the service center address
AT+CSCA?
# < +CSCA: "+420602909909",145
# < OK
## set SMS for Text format (not PDU)
AT+CMGF=1
# < OK
## send a SMS message directly/without storing, to the number (resulting value is the message reference number allocated by the modem)
AT+CMGS="420608123456"
# > (type the message; when finished, press Ctrl+z of the keyboard)
# < +CMGS: 179
# < OK
## store a SMS message for sending to the number (resulting the CMGW value specifies the location where the text message is stored in the message storage area)
AT+CMGW="420608123456"
# > (type the message; when finished, press Ctrl+z of the keyboard)
# < +CMGW: 2
# < OK
## send the stored SMS message to its number (the parameter value specifies the location where the text message is stored in the message storage area; resulting value is the message reference number allocated by the modem)
AT+CMSS=2
# < +CMSS: 0
# < OK
## send the stored SMS message to another number (the parameter value specifies the location where the text message is stored in the message storage area; resulting value is the message reference number allocated by the modem)
AT+CMSS=2,"420608123456"
# < +CMSS: 180
# < OK

General

AT – ping/pong

MK802+ (Allwinner A10, 1GB RAM, 4GB NAND flash)

Wed, 23 Apr 2014 00:00:00 +0000

Specification:
- A10 Processor
- Allwinner A10 CPU and Mali-400 MP GPU by community
- A1X specification at Wikipedia
- MK802 Chinese 1GB teardown
Where to buy:
- Rikomagic MK802+ at GeekBuing
Blogs (factory firmware releases and testing):
Forums (rooted firmware releases, HW mods, etc.):
- ArmTvTech
- FreakTab
- MiniAnd
- 4PDA (only for registered users can download)
- AndroidForum
Firmwares (factory, rooted, recovery, etc.):
- Recovery
  - CWM Recovery Installation + CM9 & CM10 for original Mk802
- Rikomagic’s Original/Factory (FTP site)
  - Rikomagic MK802 Forum – firmware rev1 vs. rev2/FW0710B
  - Rikomagic MK802 II Forum
  - Support for Rikomagic’s devices with official firmware version 0724 (rev03) and firmwares for MK802II and MK802III – there is also a mirror
  - Support for Rikomagic’s devices (German mirror)
  - the original firmware can be modified by Uberizer (key sequence: d/0 for backup, c/6 for root, b/3 for market fix, e/2 for boot animation, c/13 for root checker apk, and d/0 for final backup)
- Custom ROMs based on the factory firmware
  - Uberoid for MK802 – rooted orig. FW0710B with some apks (no kernel or userspace mods)
  - duke_srg’s universal firmware for all known versions MK802 based AllWinner A10 (download link)
  - patches with overclocked linux kernels to 960MHz, 1008MHz, and 1056MHz – without a heatsink up to 1008Mhz, AnTuTu scores 2667@912MHz (before patched), 3205@1008MHz and 3350@1056MHz (after patched); see also howto overclock and patched kernels for the latest firmware 910
  - Special firmware, kernels, and modules for AllWinner CM9 with configuration and description files for UpdateMe application
  - DELANET TweakFix for MK802 v0.4 – several non-kernel patches for 910 firmware (howto)
- CM9/AOKP
  - ChristianTroy’s CyanogenMod 9 for Allwinner A10 with compatibilities and AOKP for Allwinner A10 with compatibilities – mk802_legacy-compatibility_vX.zip for Android 4.0 needed (the legacy compatibility includes stock kernel with no additional modules, such as DVB-T, etc.)
- CM10
  - ChristianTroy’s CyanogenMod 10 for Allwinner A10 with compatibilities – mk802_legacy-compatibility-jb_vX.zip for Android 4.1 needed (the legacy compatibility includes stock kernel with no additional modules, such as DVB-T, etc.)
  - Shaun2029’s Unofficial CyanogenMod 10 (Android 4.1.2) – mk802_legacy-compatibility-jb_v5.zip for Android 4.1 needed (the legacy compatibility includes stock kernel with no additional modules, such as DVB-T, etc.), also it may require to reformat the internal SD card by mkfs.exfat /dev/block/nandi (in factory firmware, the SD card has partition table, i.e. there is already vfat partition/dev/block/nandi1)
  - xplodwild’s CyanogenMod 10 Development – in progress, see GitHub repository
- Uhost U1a – very similar to and firmware only for MK802II (e.g. external mic. and 802.11bgn)
  - U1A-404.000.10.* firmwares
  - Tatubias Tweak for U1a
  - Uhost U1s firmwares
- GNU/Linux
  - Linaro distribution with PengPod repository – including accelerated XBMC, VLC, etc.
  - Puppy
  - Ubuntu
- MK802II Firmwares Gathered on One Place – so far “Android 4.1 Justop Android TV Box V2.0_REV2” seems to be the best one
- How to build Android OS for an embedded A10 device

Firmware

Information

HW releases (need a specialised firmware)
- MK802 – 512Mb-1Gb, 2 chips, RTL8188CTV
- MK802+ – 1Gb, 4 chips, RTL8188CTV, Microphone
- MK802II – 1Gb/4 IC, RTL8188CUS, Power management IC
- MK802++ – 1Gb, 2 chips, Power management IC
NAND partitions
- /dev/block/nanda – bootloader (vfat), known as bootfs before, includes boot.axf u-boot.bin etc.
- /dev/block/nandb – enviroment for u-boot
- /dev/block/nandc – boot (kernel+initrd)
- /dev/block/nandd – system, android real rootfs (ext4)
- /dev/block/nande – user data
- /dev/block/nandf – misc
- /dev/block/nandg – recovery (kernel+initrd)
- /dev/block/nandh – android app cache
- /dev/block/nandi – private data (exfat)
- /dev/block/nandj – img backup (MK802II only)
- /dev/block/nandk – udisk (MK802II only)
Firmware versions – MK802 firmware compatibility (also discussed here)

Upgrade by firmware flashing

download LiveSuitPack109eng (LiveSuit V1.09) which contains a flashing tool and x86&x64 USB drivers
download firmware image file (*.img)
proceed as follows
1. press and hold MK802’s reset button (one of the holes near HDMI port)
2. connect MK802 via OTG port to PC (still holding the reset button)
3. wait while Windows will be looking for driver for the device (~5 seconds) and then, the reset button can be released
4. open Windows Device Manager and select “Update driver” on the new “Unknown device”, ser LiveSuit’s folder when Windows starts looking for a suitable driver
5. after the driver is installed, you can run LiveSuit (and read or skip emerging help)
6. in LiveSuit, select the preffered firmware image (*.img file)
7. disconnect and again connect the MK802 device
8. flashing starts automatically, when the connected device is recognized (when its driver will be found)
if error 0x162 will appear during the flashing (around 3%) proceed as follows
1. download the image of CWM recovery firmware
2. flash the image by means of LiveSuit (it should works for this image)
3. connect the device to TV-set/monitor and in CWM perform “format data/factory reset” and power off the device
4. now, the flashing of the device should work for any firmware image as usual (that is no 0x162 errors anymore)

Modification of firmware image

howtos are availabe at XDA and MiniAnd
the following software is needed
- a tool is able to pack/unpack Allwinner A10 images in the format as used by the Allwinner Livesuit software)
  - Linux: awutils open-source toolset, to download use Git as git clone https://github.com/Ithamar/awutils
  - Windows: A10 flash kitchen v2 – the version for ICS, based on the ainol novo 7 soruce drop, but only contains the nescessary files, and has a few batch scripts to automate the process
- for extracting and building the partitions of the image
to extract a firmware image
1. unpack the firmware image from original.img file
  - Linux: execute awimage tool which will extract the content of the image into original.img.dump directory as awimage -uv original.img
  - Windows: put an image file as original.img into a10_flash_kitchen_v2/packer_ics directory as extract_image.bat in the flash kitchen and execute extract_image.bat
2. directory _extract or *.dump will contain the extracted files which are
  - SYS_CONFIG* – a command bunch for LiveSuite which tells the app how to flash, what to flash, where, and it configures the device too (screen size, ram info, cpu info, etc)
  - BOOT0_* and BOOT1_* – NAND bootloaders
  - FED_*, FES_*, and FET_* – NAND flashing utilities, checksums, hardware scanner, and other tools used during flashing
  - 1234567890* – bootloaders, config files, and tools for SDMMC flashing, if there’s a device with SDMMC internal instead of NAND, these are used
  - SPLIT_* – some kind of ID string
  - RFSFAT16_BOOTLOADER_00000.fex – the bootloader partition (vfat dump)
  - RFSFAT16_BOOT_00000000000.fex – the boot image (kernel + initrd)
  - RFSFAT16_RECOVERY_0000000.fex – the recovery image (kernel + initrd)
  - RFSFAT16_SYSTEM_000000000.fex – the system partition (ext4 sparse)
3. extract RFSFAT16_BOOTLOADER_00000.fex by executing mkdir -p RFSFAT16_BOOTLOADER_00000; sudo mount -o loop RFSFAT16_BOOTLOADER_00000.img RFSFAT16_BOOTLOADER_00000 which mounts the vfat dump into ./RFSFAT16_BOOTLOADER_00000 directory
4. extract RFSFAT16_BOOT_00000000000.fex by executing
  1. tools/split_bootimg.pl RFSFAT16_BOOT_00000000000.fex which extracts the boot image into RFSFAT16_BOOT_00000000000.fex-kernel (kernel) and RFSFAT16_BOOT_00000000000.fex-ramdisk.gz (initrd) images
  2. mkdir -p RFSFAT16_BOOT_00000000000 && cd RFSFAT16_BOOT_00000000000; gunzip -c ../RFSFAT16_BOOT_00000000000.fex-ramdisk.gz | cpio -i which extracts the content of given initrd file into RFSFAT16_BOOT_00000000000 directory
5. extract RFSFAT16_RECOVERY_0000000.fex by executing
  1. tools/split_bootimg.pl RFSFAT16_RECOVERY_00000000000.fex which extracts the recovery image into RFSFAT16_RECOVERY_00000000000.fex-kernel (kernel) and RFSFAT16_RECOVERY_00000000000.fex-ramdisk.gz (initrd) images
  2. mkdir -p RFSFAT16_RECOVERY_00000000000 && cd RFSFAT16_RECOVERY_00000000000; gunzip -c ../RFSFAT16_RECOVERY_00000000000.fex-ramdisk.gz | cpio -i which extracts the content of given initrd file into RFSFAT16_RECOVERY_00000000000 directory
6. extract RFSFAT16_SYSTEM_000000000.fex by executing
  1. tools/simg2img RFSFAT16_SYSTEM_000000000.fex RFSFAT16_SYSTEM_000000000.img which creates an ext4 dump
  2. mkdir -p RFSFAT16_SYSTEM_000000000; sudo mount -o loop RFSFAT16_SYSTEM_000000000.img RFSFAT16_SYSTEM_000000000 which mounts the ext4 dump into ./RFSFAT16_SYSTEM_000000000 directory
7. replace the original kernels (boot.img-kernel and recovery.img-kernel) with customised ones and modify extracted files and files in the mounted directories as you wish
8. get bootloader.fex by unmounting ./RFSFAT16_BOOTLOADER_00000 directory and renaming RFSFAT16_BOOTLOADER_00000.fex to bootloader.fex
9. pack new boot.fex by executing
  1. tools/mkbootfs RFSFAT16_BOOT_00000000000 | gzip > boot.img-ramdisk.gz which creates initrd file
  2. tools/mkbootimg --base 0x40000000 --kernel boot.img-kernel --ramdisk boot.img-ramdisk.gz --cmdline 'console=ttyS0,115200 rw init=/init loglevel=8' -o boot.fex which packs the kernel and the initrd images into boot.fex file
10. pack new recovery.fex by executing
  1. tools/mkbootfs RFSFAT16_BOOT_00000000000 | gzip > recovery.img-ramdisk.gz which creates initrd file
  2. tools/mkbootimg --base 0x40000000 --kernel recovery.img-kernel --ramdisk recovery.img-ramdisk.gz --cmdline 'console=ttyS0,115200 rw init=/init loglevel=8' -o recovery.fex which packs the kernel and the initrd images into recovery.fex file
11. pack new system.fex by executing sudo tools/mkuserimg.sh -s ./RFSFAT16_SYSTEM_000000000 system.fex ext4 /tmp 300M (the directory should be still mounted when executing the command)
12. pack the new firmware into output.img file
  - Linux: ???
  - Windows: use flas kitchen as follows
    1. move all new *.fex files into a10_flash_kitchen_v2/packer_ics/_input directory
    2. open a10_flash_kitchen_v2/packer_ics/files/image.cfg file and comment lines with OEM and VOEM strings by preceeding semicolon (;)
    3. in a10_flash_kitchen_v2/packer_ics directory execute create_image.bat to create the firmware image as output.img file

Upgrade by means of CWM

download the image of CWM recovery firmware
flash the image into a device by means of LiveSuit (it should works for this image)
download *.zip files with a system (e.g. CyanogenMod), a google apps compatible with the system, and a compatibility pack of factory drivers, put them into a SD card, and insert it into the device
connect the device to TV-set/monitor and in CWM perform “format data/factory reset”
in CWM install ZIP files from the SD card in order: the system, the google apps, and the compatibility pack; then reboot the device

GK802 (Freescale i.MX6Q, 1GB RAM, 8GB internal microSDHC)

Sat, 20 Jul 2013 00:00:00 +0000

Specification:
Where to buy:
- Zealz GK802 at GeekBuying
Blogs, etc. (factory firmware releases and testing):
Forums, etc. (rooted firmware releases, HW mods, etc.):
- ArmTvTech
- FreakTab
- Miniand
- i.MX Community at Freescale
- Freescale i.MX6 HDMI Dongle Development (GK802/Hi802) mailing list, #imx6-dongle IRC
- XBMC for GK802/Hi802 and its announcements by wolfgar
Firmware lists, etc. (rooted/factory firmware releases, linux images, etc.):

Firmware

Stock Android

flashing an Android full image of internal SDHC card (file $(imgfile}.vhd or ${imgfile}.dd) via dd

VHD-to-RAW/DD

VBoxManage clonehd ${imgfile}.vhd –format RAW ${imgfile}.raw

Android for mini-PC HDMI-sticks

Sat, 27 Apr 2013 00:00:00 +0000

HowTo

How to control volume by shell commands – commands input keyevent 24 (for vol up) and input keyevent 25 (for vol down); see KeyEvent API
to set ANR/Watchdog properties modify build.prop as
- keydispatchtimeout = 15000 # Property of ANR timeout value
- watchdogtimeout = 120000 # Property of Watchdog timeout value
Integration of Android Apps and GNU/Linux User-space part 1 and part 2

Applications

XBMC:
- XBMC HUB’s First End User Release of XBMC for Android with HW Video Decoding on All Platforms by external MX Player (see also cnxsoft’s announcement)
- Installing/getting XBMC for Android and specific information on Allwinner A10 devices
- in Android 4.1, there is currently problem with scanning music into library, which needs a context menu, however, both mouse buttons do just single click, no back or menu actions – that means a keyboard is needed (the context menu is “c” key"
Flash Player 11.1.for Android 4.0 – There is no official support or version for Android 4.1 and up, but the ICS version works without issue (well, some browsers have issues with it or dont support it).
Lanchers suitable for TV screen
- krankdroid’s Android TV Launcher v1.0.1 (direct download link and a screenshot)
- TVLauncher - Pro v1.5 by Awesome Development and its current version TVLauncher v2+
- TV Box Launcher by Insolence Group
Video Podcasts/Movies/etc.
- JTV Launcher – channels from Justin TV website
- aioTV – live streams aggregator from Hulu, Crackle, Youtube, CNBC, BBC, etc.
- Cinema Haven – on-line movie indexing service with search
- SopCast – p2p video streaming
Uberoid Apps for mk802 – a shutdown application for MK802
DroidMote – a remote control
Seeder – an entropy generator to provide significant lag reduction
Droid Proxy and Market-Enabler (download) or Paid Apps Enabler to fake SIM provider with setup:
1. install DroidProxy
2. set an US proxy in DroidProxy but only for the app Android Market
3. launch Market Enabler and fake a US network (or set GSM network manually)
4. enjoy buying from Android Market!
resize2fs from UG802 firmware (kernel 3.0.8+)

MK808B (Rockchip RK3066, 1GB RAM, 8GB NAND flash)

Fri, 26 Apr 2013 00:00:00 +0000

Specification:
- RK30XX Family of Processors
- RK30XX specification at Wikipedia
Where to buy:
- MK808B at GeekBuying
Blogs (factory firmware releases and testing):
Forums, etc. (rooted firmware releases, HW mods, etc.):
- ArmTvTech
- FreakTab
Firmwares, kernels, etc. (factory/rooted firmware, etc.):

Firmware

NAND of rk3066-based devices&p=54242&viewfull=1#post54242)
Unbrick or fix NAND on the MK808

HP EliteBook 6470b

Sun, 18 Nov 2012 00:00:00 +0000

HP EliteBook 14,1" 1600x900/i5-3210M/4G/500GB/DVRRW/WiFi/BT/W7HP
Linux drivers: Fingerprint sensor

Initial setup

Moved Window’s bootmgr and its configuration files from the first reserved partition (FAT32) to Windows system partition (NTFS).
Moved content of HP_TOOLS partition to the (currently empty) first reserved partition, which will be used from now as EFI boot partiton.
Created Windows recovery and driver DVDs.
Removed the original HP_TOOLS and recovery partitions, the first reserved partition labeled as HP_TOOLS.
Resized Windows system (and boot) partition to 125% of the smallest possible size (~44GB).
Created a small ext2 primary partition for /boot and the last primary partition with the remaining disk space as a Linux system partition.
The Linux system partition initialized as encrypted by LUKS and LVM/VG signle PV and LVs for swap, /tmp, /var, /home, and /.
Installed EFIx64 shell (old version, the newest is not compatible with EFI formware) and GRUB EFIx64 into the first reserved partition (FAT32). The GRUB config file is just referencing the config file of GRUB at /boot.

Troubleshooting

Oracle 11gR2 Express Edition

Wed, 25 Jul 2012 00:00:00 +0000

apt-get install alien libaio1 unixodbc
grep Swap /proc/meminfo should be at least 2095100 KB
configure the linux kernel

cat > /etc/sysctl.d/60-oracle.conf <<-EOF
# Oracle 11g XE kernel parameters
fs.file-max=6815744
net.ipv4.ip_local_port_range=9000 65500
kernel.sem=250 32000 100 128
# kernel.shmmax=429496729
kernel.shmmax=107374183
EOF
service procps start
sysctl -q fs.file-max
sysctl -q kernel.shmmax # =memory_target
sysctl -q net.ipv4.ip_local_port_range
sysctl -q kernel.sem

dd if=/dev/zero of=/home/oracle-11g-xe.img bs=1 count=0 seek=18G &&mkfs.ext3 -L oraclexe /home/oracle-11g-xe.img
echo "/home/oracle-11g-xe.img /u01 ext3 errors=remount-ro,noatime 0 0" >> /etc/fstab && mount /u01

OpenWRT - IPv6 only

Tue, 01 May 2012 00:00:00 +0000

Muffin

Wed, 04 Apr 2012 00:00:00 +0000

(Muffin as a Compiz Fusion replacement)

Configuration

Muffin/Mutter Theme

copy “MyTheme” dir into ~/.themes or into /usr/share/themes
gsettings set org.gnome.desktop.interface gtk-theme "MyTheme"
gconftool-2 --set --type string /apps/metacity/general/theme "MyTheme"

Windows

to enable titlebar buttons:

gconftool-2 –set –type str /desktop/gnome/shell/windows/button_layout “menu:minimize,maximize,close” gconftool-2 –set –type str /apps/metacity/general/button_layout “menu:minimize,maximize,close” ~~~

to attach the modal dialogs to a parent window:

gconftool-2 –set /desktop/gnome/shell/windows/attach_modal_dialogs true –type bool ~~~

Keybindings

Set these properties like so: gconftool-2 --type=string --set /apps/metacity/global_keybindings/switch_windows '<Alt>Tab'

Set these properties like so: gconftool-2 --type=string --set /apps/metacity/window_keybindings/activate_window_menu '<Alt>space'

Foto ceníky

Fri, 17 Feb 2012 00:00:00 +0000

FK Technics IPC-1

Tue, 17 Jan 2012 00:00:00 +0000

a battery charger for AA and AAA batteries in four separate slots (individually controlled)
a specification of the purchased copy of original La Crosse Tech BC-900 charger
shipped with:
- 1x charger, box version 4N11 V00, firmware version 37
- 4x La Crosse Tech 2600mAh NiMH AA batteries (see their current characteristics)
- 4x La Crosse Tech 1000mAh NiMH AAA batteries
- 4x C-size battery adapters
- 4x D-size battery adapters
- 1x Ktec AC power adapter, input ~100-240V/50-60Hz/0.6A, output =3.0V/4.0A, model KSAFE0300400W1EU-A, box version P1611
- 1x durable nylon travel bag
a review (in Czech)
available charging currents: 0.2A, 0.5A, 0.7A, 1.0A in all slots, and 1.5A or 1.8A in standalone slots no. 1 and no. 4
available discharging currents: the half of a set charging current

Booting

at the device’s boot, there are three numbers on its display:
- channel 1: temperature sensor #1
- channel 2: temperature sensor #2
- channel 4: firmware version number

Charging

it is recommended to charge batteries at 0.5C–1.0C (higher is better, with temperature checking), don’t charge at a rate below 0.3C
- 2.6Ah batteries: min. charging current 1.3A (i.e. 0.5C; or very min. 0.9A, i.e. 0.3C), min. discharging current 0.7A
- 2.0Ah batteries: min. charging current 1.0A (or very min. 0.7A), min. discharging current 0.5A
- 1.0Ah batteries: min. charging current 0.5A (or very min. 0.35A), min. discharging current 0.25A
the recommended charging current is due to Negative Delta V (NDV; to obtain a sufficient voltage drop, the charge rate must be 0.5C and higher)
see how to charge
in the case of totally “dead” batteries (voltage under 0,5V), interconnect each of them in parallel temporally before its charging with a fully-charged battery (e.g. with a paper clip)

Meltdown Issues

these products with older firmware versions (newer versions may be OK, supposedly firmware v33 reduces the shut-down threshold temperature; the version is visible during the device’s boot) and/or AC power adapters v4 (visible as Roman numeral “IV” on it in the lower right hand corner of the label on the wall side of an adapter) can cause an explosion/meltdown of batteries during charging
see a discussion at Amazon and a discussion at slickdeals about new versions of the firmware

Debian 5.0 (Lenny)

Sat, 04 Jun 2011 00:00:00 +0000

Instalation

Lenny ISO of CD with KDE, Testing ISO of CD with KDE
VirtualBox:
- apt-get install linux-headers-{version} && sh /media/cdrom/VBoxLinuxAdditions-{arch}.run
- mount.vboxsf {remote-share} {local-dir}
Iceweasel as the vanilla Firefox: in about:config set general.useragent.override to modified user-agent identification string, e.g. “Mozilla/5.0 (X11; Linux x86_64; rv:2.0) Gecko/20110412 Firefox/4.0” and check about:support

Repositories

add in your /etc/apt/sources.list
- echo "deb http://debian.sh.cvut.cz/debian/ lenny contrib non-free" >> /etc/apt/sources.list
- echo "deb-src http://debian.sh.cvut.cz/debian/ lenny contrib non-free" >> /etc/apt/sources.list
- echo "deb http://security.debian.org/ lenny/updates contrib non-free" >> /etc/apt/sources.list
- echo "deb-src http://security.debian.org/ lenny/updates contrib non-free" >> /etc/apt/sources.list
- echo "deb http://debian.mirror.web4u.cz/debian/ unstable main contrib non-free" >> /etc/apt/sources.list
- echo "deb-src http://debian.mirror.web4u.cz/debian/ unstable main contrib non-free" >> /etc/apt/sources.list
- echo "deb http://debian.sh.cvut.cz/debian/ experimental main contrib non-free" >> /etc/apt/sources.list
- echo "deb-stc http://debian.sh.cvut.cz/debian/ experimental main contrib non-free" >> /etc/apt/sources.list
set stable or testing as the default release:
1. echo 'APT::Default-Release "stable";' > /etc/apt/apt.conf.d/99release
2. echo 'APT::Default-Release "testing";' > /etc/apt/apt.conf.d/99release
update package database: apt-get update

Multimedia 1

install keyring: wget 'http://www.debian-multimedia.org/pool/main/d/debian-multimedia-keyring/debian-multimedia-keyring_2008.10.16_all.deb' && dpkg -i debian-multimedia-keyring_2008.10.16_all.deb
add in your /etc/apt/sources.list
- echo "deb http://ucho.ignum.cz/debian-multimedia/ lenny main" >> /etc/apt/sources.list
- echo "deb-src http://ucho.ignum.cz/debian-multimedia/ lenny main" >> /etc/apt/sources.list
install multimedia packages: apt-get update && apt-get install flashplayer-mozilla mozilla-acroread mozilla-mplayer w32codecs kmplayer-plugin mozilla-plugin-vlc
uninstall opensource flash player: apt-get purge swfdec-mozilla && apt-get autoremove

Multimedia 2

add in your /etc/apt/sources.list
- echo "deb http://www.backports.org/debian lenny-backports main contrib non-free" >> /etc/apt/sources.list
import keyring: wget -O - http://backports.org/debian/archive.key | apt-key add -
install multimedia packages: apt-get update && apt-get install flashplugin-nonfree mozilla-mplayer

Skype

add in your /etc/apt/sources.list
- echo "deb http://download.skype.com/linux/repos/debian/ stable non-free" >> /etc/apt/sources.list
install the package: apt-get update && apt-get install skype

Packages from Mentors (Psi+, etc.)

add in your /etc/apt/sources.list
- echo "deb-src http://mentors.debian.net/debian unstable main contrib non-free``" >> /etc/apt/sources.list
install the package: apt-get -b source psi-plus && dpkg -i psi-plus*

Firefox

add in your /etc/apt/sources.list
- echo "deb http://mozilla.debian.net/ squeeze-backports iceweasel-3.6" >> /etc/apt/sources.list
import keyring: wget -O- -q http://mozilla.debian.net/archive.asc | apt-key add -
install the package: apt-get install -t squeeze-backports iceweasel -V

OpenOffice.org 3

install the package: aptitude install -t testing openoffice.org

Software Suspend

install the package: apt-get install uswsusp
use s2disk or s2ram to software suspend

Usplash

install the package: apt-get install usplash usplash-theme-debian
if you already have an initrd.img then update-initramfs will automatically generate a /boot/initrd.img for you, otherwise:
- reconfigure: dpkg-reconfigure linux-image-$(uname -r)
- or init new: mkinitramfs -k -o /boot/initrd.img-$(uname -r)
add “vga=794 quiet splash” to your /boot/grub/menu.lst

Java Plugin, TrueType Fonts, IMs, Firefox Plugins, etc.

install the packages: apt-get install icedtea-gcjwebplugin msttcorefonts psi
install the packages: apt-get install adblock-plus mozilla-imagezoom mozilla-livehttpheaders iceweasel-webdeveloper

HP ProBook 4525s Notebook

Sun, 30 Jan 2011 00:00:00 +0000

specification of model WK400EA

Migration to Windows XP 32-bit

create first primary partition as FAT32 with size 1 GB and label “HP_TOOLS” for EFI applications and tools (pdf) and make directories
- HEWLETT-PACKARD/QuickLook
- HEWLETT-PACKARD/SystemDiags
- HEWLETT-PACKARD/BIOS
- HEWLETT-PACKARD/BIOS/Current
in SETUP of EFI in “System Configuration” and “Devices” set “SATA mode” to “IDE” (instead of “AHCI”) – Windows XP can’t be installed on AHCI controller due to an error
during setup of Windows XP 32-bit create second primary partition as NTFS and install the system
in the system install driver of AHCI controller and switch access mode
- select Update Driver from Device Manager as mentioned in the first reply to this post
- pick from list of device drivers on your computer
- select (Standard IDE ATA/ATAPI controller) > Standard Dual Channel PCI IDE Controller
- restart your PC
in SETUP of EFI in “System Configuration” and “Devices” set “SATA mode” to “AHCI” (instead of “IDE”)
enable PAE switch in boot.ini if needed (see [[blog*win32-above-4gb]])
install HP drivers and EFI tools, especially
- HP FastLook Software, HP QuickWeb Software, HP System Diagnostics UEFI, HP BIOS Update UEFI
- all of them should run and unbundle into the C:/swsetup directory and be installed in /HEWLETT-PACKARD, e.g. as ./QuickLook/QuickLook.efi, and have signatures, eg. in ./QuickLook/QuickLook.sig

AF9015 DVB-T USB2.0 stick

Sat, 27 Nov 2010 00:00:00 +0000

NXP TDA18218HK tuner chip
lsusb -vd 15a4:9016:

Bus ? Device ?: ID 15a4:9016 Afatech Technologies, Inc. AF9015 DVB-T USB2.0 stick Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x15a4 Afatech Technologies, Inc. idProduct 0x9016 AF9015 DVB-T USB2.0 stick bcdDevice 2.00 iManufacturer 1 Afatech iProduct 2 DVB-T 2 iSerial 3 010101010600001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 71 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 4 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 0 No Subclass bInterfaceProtocol 1 Keyboard iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.01 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 65 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 10 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) ~~~

Java ME

Mon, 02 Aug 2010 00:00:00 +0000

Emulation

Applications

TrekBuddy - J2ME application for GPS tracking

homepage, download
maps for GPSka and TrekBuddy, mapy Slovenska
TrekBuddy: mapy zdarma do každého mobilu (article)
grabber-apps: Mobile Atlas Creator, MapGrabber
grabber-webs: GoogleMaps 2 TrekBuddy

Canon PowerShot A710IS

Thu, 01 Apr 2010 00:00:00 +0000

8750 Kc, 7 Mpix, 6x zoom, ISO 800, 2,5" 115 kpix, SD/MMC(<2GB), 2xAA(~360sn.), max. 2 sn./sekundu, 9,7×6,7×4,1 cm
(+): optStabil, exp. 15 sekund, CHDK firmware
(-): tmavy hruby display, neni MassStorageUSB, orig. fw nema EV bracketing
recenze, objednano

CHDK firmware for Digic II cameras

based on Alex’s CanonHacking
Homepage
setup:
1. unzip a CHDK firmware package to the root directory of a SD card (e.g. http://grandag.nm.ru/hdk/autobuild/allbest-a710-100a-51-413.zip)
2. copy a czech translation into /chdk/lang/czech.lng in cp1250 encoding
3. unzip {{notebook:chdk-config.zip}} to the same directory
4. turn on a camera in the play mode and check an original firmware’s version: hold [Func.set] and [Disp.]
5. load the CHDK firmware: in the play mode press [Menu], [Up] and [Func.Set]
6. enable autoload of the CHDK firmware: press [Print] and [Menu], then select [Debug] and [Make a card bootable]
7. lock a SD card by HW switch
scripting using uBASIC, CHDK/AllBest firmware usage

OpenSUSE 11

Sat, 26 Dec 2009 00:00:00 +0000

Repositories

[external-NVIDIA]
name=external-NVIDIA
enabled=0
autorefresh=1
baseurl=http://download.nvidia.com/opensuse/11.1
path=/
type=rpm-md
priority=40
keeppackages=0

[external-ATI]
name=external-ATI
enabled=0
autorefresh=1
baseurl=http://www2.ati.com/suse/11.1/
path=/
type=rpm-md
priority=40
keeppackages=0

[external-Libdvdcss]
name=external-Libdvdcss
enabled=1
autorefresh=1
baseurl=http://suse.linuxin.dk/repo/11.1/
type=rpm-md
priority=40
keeppackages=0

[external-Packman]
name=external-Packman
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/linux/misc/packman/suse/11.1/
path=/
type=rpm-md
priority=40
keeppackages=0

[openSUSE-11.1-Mozilla]
name=openSUSE-11.1-Mozilla
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/mozilla/openSUSE_11.1/
path=/
type=rpm-md
priority=30
keeppackages=0

[openSUSE-11-1-Contrib]
name=openSUSE-11-1-Contrib
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/openSUSE:/Factory:/Contrib/openSUSE_11.1/
path=/
type=rpm-md
priority=50
keeppackages=0

[openSUSE-11.1-Debug]
name=openSUSE-11.1-Debug
enabled=1
autorefresh=0
baseurl=http://ftp5.gwdg.de/pub/opensuse/debug/distribution/11.1/repo/oss/
path=/
type=yast2
priority=50
keeppackages=0

[openSUSE-11.1-Home-h31_PsiMedia]
name=openSUSE-11.1-Home-h31_PsiMedia
enabled=0
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/home:/h31/openSUSE_11.1/
path=/
type=rpm-md
priority=60
keeppackages=0

[openSUSE-11.1-Home-SMakc_PsiPlus]
name=openSUSE-11.1-Home-SMakc_PsiPlus
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/home:/SMakc/openSUSE_11.1/
path=/
type=rpm-md
priority=60
keeppackages=0

[openSUSE-11.1-KDE4-Factory-Desktop]
name=openSUSE-11.1-KDE4-Factory-Desktop
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/KDE:/KDE4:/Factory:/Desktop/openSUSE_11.1/
path=/
type=rpm-md
priority=30
keeppackages=0

[openSUSE-11.1-KDE4-Playground]
name=openSUSE-11.1-KDE4-Playground
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/KDE:/KDE4:/Playground/openSUSE_11.1_KDE4_Factory_Desktop/
path=/
type=rpm-md
priority=30
keeppackages=0

[openSUSE-11.1-Kernel-Head]
name=openSUSE-11.1-Kernel-Head
enabled=0
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/Kernel:/HEAD/openSUSE_11.1/
path=/
type=rpm-md
priority=70
keeppackages=0

[openSUSE-11.1-Non-Oss]
name=openSUSE-11.1-Non-Oss
enabled=1
autorefresh=1
baseurl=http://ftp.linux.cz/pub/linux/opensuse/distribution/11.1/repo/non-oss/
path=/
type=yast2
priority=50
keeppackages=0

[openSUSE-11.1-Oss]
name=openSUSE-11.1-Oss
enabled=1
autorefresh=1
baseurl=http://ftp.linux.cz/pub/linux/opensuse/distribution/11.1/repo/oss/
path=/
type=yast2
priority=50
keeppackages=0

[openSUSE-11.1-Source-Non-Oss]
name=openSUSE-11.1-Source-Non-Oss
enabled=1
autorefresh=0
baseurl=http://ftp5.gwdg.de/pub/opensuse/source/distribution/11.1/repo/non-oss/
path=/
type=yast2
priority=50
keeppackages=0

[openSUSE-11.1-Source]
name=openSUSE-11.1-Source-Oss
enabled=1
autorefresh=0
baseurl=http://ftp5.gwdg.de/pub/opensuse/source/distribution/11.1/repo/oss/
path=/
type=yast2
priority=50
keeppackages=0

[openSUSE-11.1-Update]
name=openSUSE-11.1-Updates
enabled=1
autorefresh=1
baseurl=http://ftp.linux.cz/pub/linux/opensuse/update/11.1/
path=/
type=rpm-md
priority=50
keeppackages=0

[openSUSE-11.1-X11-Drivers-Video]
name=openSUSE-11.1-X11-Drivers-Video
enabled=1
autorefresh=1
baseurl=http://ftp5.gwdg.de/pub/opensuse/repositories/X11:/Drivers:/Video/openSUSE_11.1/
path=/
type=rpm-md
priority=30
keeppackages=0

ATI Catalyst driver

download driver by wget "https://a248.e.akamai.net/f/674/9206/0/www2.ati.com/drivers/linux/ati-driver-installer-9-12-x86.x86_64.run"
sh ati*.run --listpkg
sh ati*.run --buildpkg SuSE/SUSE112-IA32
yast -i kernel-desktop kernel-desktop-devel kernel-source make gcc
rpm -e $(rpm -qa '*fglrx*')
rpm -Uvh fglrx_7_4_0_SUSE112-*.i386.rpm
init 3
SaX2 -r -m 0=fglrx
init 5

Debian and Oracle Java

Thu, 23 Apr 2009 00:00:00 +0000

download Oracle JDK package
apt-get install java-package
fakeroot make-jpkg jdk-7*-linux-x64.tar.gz
dpkg -i oracle-j2sdk1.7_1.7.0*.deb
update-java-alternatives -l
update-java-alternatives --jre --plugin -s j2sdk1.7-oracle
update-alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so mozilla-javaplugin.so /usr/lib/jvm/j2sdk1.7-oracle/jre/lib/amd64/libnpjp2.so 317
update-alternatives --all

E-podání na ČSSZ

Thu, 23 Apr 2009 00:00:00 +0000

Aktualizace podpisového certifikátu uživatele

nainstalovat certifikát do uložiště certifikátů ve Windows
přiřadit podpisový certifikát v MRP aplikaci pro podání (nutno jako podpisový, ne jako šifrovací, který je ČSSZ)
oznámit změnu registrační autoritě do Registrační databáze ČSSZ (RAUI)
1. po instalaci nového certifikátu vyexportovat jeho veřejnou část (bez části privátní!) do formátu X.509 kódování Base64 (CER)
  - postup, jak uložit tyto údaje na disketu ze systému: Internet Explorer - volba Nástroje -> Možnosti sítě Internet -> Obsah -> Certifikáty, záložka Osobní, tlačítko Exportovat, Další, Neexportovat soukromý klíč, formát uložení certifikátu se zvolí X.509, zakódovaný Base 64 (.CER), certifikát se uloží na disketu pod libovolným názvem s příponou .cer
2. výsledek zazipovat (proti antivirové ochraně) a s registračním číslem uživatele zastal na příslušnou OSSZ
  - vyvaruje se chybného zápisu do RAUI, např. bez vedoucích hexadecimálních nul anebo s chybným vystavitelem certifikátu (v RAUI se u poštovního certifikátu a pro EIdentity zadává zprostředkující a ne kořenový certifikát); nespoléhat, že referentky jsou bez problému schopné vyhledat veřejnou část certifikátu, např. podle e-mailové adresy, přímo na WWW stránkách certifikační autority.

High Dynamic Range images

Wed, 01 Apr 2009 00:00:00 +0000

HDR = High Dynamic Range (under Linux and others)
LDR = Low Dynamic Range

LDR to LDR (Blending Exposures)

GIMP tutorial
blend two different exposures of the same scene that you would like to combine to get the best parts of both images

LDR to HDR

generate at least 3 images, each one with different exposures
to combine the images use:
Hartmut Sbosny’s Bracketed exposures to HDR plugin in CinePaint (GTK+1 GUI) – tutorial
pfstools, pfscalibration and pfstmo – tutorial
the result of this is an HDR image that can be saved in the OpenEXR format

HDR to LDR

the reason for tone mapping arises when we want to display the resulting HDR image
most display devices, including monitors and printers are LDR devices
book High Dynamic Range Imaging; Acquisition, Display, and Image-Based Lighting
tone mapping operators provide more sophisticated methods for achieving the needed range compression
pfstmo provides seven such operators with references to the original papers for each operator – GUI, tutorial

Process

3D Mapy

Mon, 16 Mar 2009 00:00:00 +0000

GEONOVA 3D-Viewer G-Vista

Tak jsem narazil na zajímavou aplikaci, která umožňuje virtuální procházku v 3D mapě krajiny. Bohužel se jedná o uzavřené proprietární řešení, takže je vyžadován plugin pro application/x-gvista. V Internet Exploreru to běhá docela hezky, ale s Firefoxem se mi nepodařilo zobrazit nic. No a mapa České Republiky, na kterou jsem se těšil nejvíce, nešla ani v IE :-(.

Pluginy

Modely 3D map

GeoShow3D

MathML

Mon, 16 Mar 2009 00:00:00 +0000

Prevodniky MathML

Prezentace MathML

Výběr MP3 přehrávače

Mon, 16 Mar 2009 00:00:00 +0000

Alcatel One Touch 512 - demontáž

Tue, 03 Mar 2009 00:00:00 +0000

Návod jak rozdělat GSM telefon Alcatel One Touch 512, za účelem vyčištění a zprovoznění často poruchového pákového ovladače (joysticku). Dlouho jsem to na Internetu hledal, ale nic jsem nenašel - snad to někomu pomůže.

Upozornění

Celé akce je na vaše vlastní nebezpeční. Pokud máte telefon v záruční době, prosím, vyhledejte raději autorizovaný servis.

Nářadí

malý plochý šroubovák
jemný čistý štětec
malý křížový šroubovák

Postup

Špičku plochého šroubováku vsuneme z pod tmavěšedý plastový díl (s nápisem Alcatel) z boční strany telefonu (těsně nad prohlubeň pro držák telefonu) a jemným stálým tlakem částečně vypáčíme tento díl (jsou tam dvě západky). Poté pokračujeme v opatrném páčení až se plastový díl úplně oddělí od hliníkového krytu telefonu (je tam přilepen oboustrannou lepící páskou).
Opět špičkou plochého šroubováku vyhákneme hliníkový kryt z háčku na plastovém těle telefonu, který se odkryje po odstranění plastového dílce z předchozího kroku.
Jemným páčením odlepíme hliníkový kryt od plastového těla telefonu (opět je použita oboustranná lepící páska, kterou je hliníkový kryt přichycen v horní části telefonu v okolí sluchátka).
Odejmene klávesnici telefonu a štětečkem vyčistíme celou přední stranu.
Křížovým šroubovákem odšroubujem šest dlouhých šroubků (dva u sluchátka, dva pod displayem a dva pod klávesnicí) a opatrně odejmeme přední plastový kryt telefonu (je nezbytná opatrnost protože kryt se základní deskou telefonu mnoha kontakty v oblasti sluchátka (připojení samotného sluchátka a konektorů nabíjení a hands-free).
Odejmeme tenkou fólii spínačů klávesnice a štěteškěm důkladně vyčistíme celý povrch základní desky a spínač pákového ovladače. Základní desku lze vyjmou ze zadní části obalu telefonu. (poznámka: Nikdy nerozdělávejte display z jeho patice!)
Vyčistíme zadní kryt telefonu zejména v jeho spodní části, kde je vibrační motorek a mikrofon (pozor na kontakty).
Telefon složíme postupem opačným k postupu demontáže.

Pokud telefon po složení funguje (nejlépe lépe než před celou akcí), tak gratuluji - byli jste úspěšní :-)

Beamer Themes

Tue, 03 Mar 2009 00:00:00 +0000

The progressbar Beamer theme
A Beamer theme for NTNU
IAS themes for Beamer
Unofficial Uppsala theme for Beamer
Themes overview
uubeamer: A theme for latex-beamer
NCSU Beamer Style
Diepen Theme (inc. handoutWithNotes.sty)
Extended Beamer themes

Fotoškola

Tue, 03 Mar 2009 00:00:00 +0000

Co musí umět každý objektiv, aby fotky stály za to. Podrobný průvodce (iDNES.cz)

Expozice (EV)

ovlivnuje ISO, clona a cas, kontrola z histogramu
pro prodloužení nastavit max. clonu a min. citlivost, použít šedý neutrální filtr
predstavuje umisteni v dynamickem rozsahu sceny (problem s HD scenami)
problem protisvetlo a jasny den, bez problemy zamracena obloha a mlha
exponovat na stiny (detaily v tmave) nebo na svetla (detaily ve svetle)

Clona (f)

mala = ostre objekty jen v ohnisku, ale s cistejsimi detaily, mensi expozice
velka = ostre objekty i daleko od ohniska, ale s mene ostrejsimi detaily, vetsi expozice
primo umerne ovlivnuje hloubku ostrosti spolu s vzdalenosti objektu
hloubka ostrosti neprimo umerne ovlivnena fyzickym ohniskem
objekty ve stejne vzdalenosti = staci F5,6
hlubsi prostor (interier) = F8 az F11

Ohniskova vzdalenost

siroka = nepriblizuji obraz, prohlubuji dojem prostoru, siroky zaber pozadi
uzka (teleobjektivy) = priblizuji obraz, zplostuji dojem prostoru, uzky zaber pozadi
ohnisko 28 mm = ekvivalent kinofilmu
z ruky jen cas kratsi nez prevracena hodnota ohniskove vzdalenosti (napr. pro 100mm ohnisko max. 1/100 s)
zvolit sirokouhly objektiv s co nejmensim soudkovitym zkreslenim
rozmerne objekty z co nejvetsiho odstupu a ve stredni vysce (zabrani sbihani svislych linii, tzv. kaceni linii)
pro portret idealni 100 mm (asi 3x opticke priblizeni, vzd. 2 az 3 metry od objektu)
DIGIarena.cz - Fotoškola: Hrátky s perspektivou

Citlivost (ISO)

mala = mensi sum, dlouha expozice (vhodne pro interiery)
velka = vetsi sum, kratka expozice

Teplota chromaticnosti svetla a vyvazeni bile

v pripadech, kde se misi vice zdroju, takrka nemozne (color-metr nebo RAW)

Kompozice

horizont v hornich dvou tretinach obrazu, ne na dve poloviny
u krajinářských snímků nebe zabira 3/5 výšky ležíci nad skutečným nebo pomyslným horizontem
rusivy objekt nezachycovat cely, objekt v popredi ano
pouzit vedlejsi objekt k oramovani snimku (napr. vlasy u portretu)
zlaty rez (prvni pohled do horni leve tretiny, posledni do dolni prave tretiny, cteni fotografie zleva doprava ve dvou radcich na hrane vertikalnich tretin)
kompozice na stred (symetrie) nebo na diagonalu (hrana budovy, obzor krajiny, koleje, silnice, atd.)
rytmus opakujicich se prvku
ponechat prostor, kam miri pohled fotografovane postavy
u portretu ostrit na oci a zaroven je mit ve zlatem stredu
blesk redukuje stiny, vytahne svetleji objekt v popredi, zmrazi pohyb
predmety nesmi nevyrustat z hlavy (tzv. srostlice)
DIGIarena.cz - Zlatý řez ve fotografii

Filtry

neutrální přechodový (šedý), napr. Cokin A121 – z jedné strany zbarvené tmavě (obvykle šedě) a plynule přechází do čiré, potlačení jasu oblohy na úkor krajiny v popředí
cirkulární polarizační (šedý), napr. Cokin A164 – absorbuje polarizovane svetlo, viditelne zjasnění barev, zprůhlednění namodralého oparu dálek, ztmavnutí modré oblohy, markantní zvýraznění mraků na polojasné obloze, max. efekt v pravém úhlu ke slunci, se sluncem za zády či v protisvětle je účinek filtru prakticky nulový,
neutrální (šedý), napr. Cokin A153 – pohlcuje světlo celoplošně, omezi množství světla, pro dlouhé expoziční časy za denního světla, lze docilit take kombinaci dvou prechodovych filtru otocenych proti sobe,
intenzity ztmavení G1 a G2 v několika variantách přechodu (světlém G2-light, středním G2-medium, měkkém G2-soft a plném G2),
závit na objektivu do 55, 62, 72, 82 mm
blesk v extrémních světelných podmínkách dokáže zviditelnit objekty v blizkem okolí mnohem lépe než kterýkoli filtr,
těsně před bouřkou země mnohem více nasvětlena než obloha, nepotřebujeme filtr.
DIGIarena.cz - Fotoškola: Vše o filtrech (teorie, návody i příklady)
System filtru Cokin, Cokin systém prehled
Nákupní košík – Celkem: 2490,- Kč (2 963,10 Kč s DPH):
1. Cokin A164 – Rozměr: Cokin A, Druh: Polariz…, 833,-
2. Cokin A121F – Rozměr: Cokin A, Druh: Přechodový, 438,-
3. Cokin A121 – Rozměr: Cokin A, Druh: Přechodový, 438,-
4. Cokin A120 – Rozměr: Cokin A, Druh: Přechodový, 438,-
5. Cokin Držák filtrů A – Rozměr: Cokin A Druh: Držák, 212,-
6. Cokin Kroužek pro uchycení držáku COKIN 58 mm – Rozměr: 58mm, Druh: Redukce, 131,-
Canon LA-DC58G, adaptér konvertoru 58mm pro A700/A710 IS – 518 Kc (s DPH 616 Kc)