Investigation of an Android backup file:
Create a backup file:
adb backup -f `date +%Y%m%d`_backup.ab -apt -obb -all -system
Extract its contents:
dd if=~/android/20161101_backup.ab bs=1 skip=24 | zlib-flate -uncompress > x.tar
Find resource hogs (as root):
find -exec file '{}' ';' | grep "ISO Media" | awk '{ split($0, a, ":"); print a[1] }'
Android apk files are located in /data/app, they can be (temporarily) removed when there is not sufficient space for installing new apps.
Based on:
http://ultra.ap.krakow.pl/~bar/DOC/ssh_backup.html
How to copy something (that does not need to be a file) to the host:
cat localfile | ssh target_address cat ">" remotefile
cat localfile | gzip -c -1 | ssh target_address cat “>” remotefile.gz
This was used in an ‘adb shell’, to copy /dev/block/mmcblk0 to my host.
When the tablet is initially connected to Windows, it will not be detected as an Android device.
To enable the device to be accessed from the Android SDK:
; QWare tablet %SingleAdbInterface% = USB_Install, USB\VID_18D1&PID_0003%CompositeAdbInterface% = USB_Install, USB\VID_18D1&PID_0003&MI_01