Monthly Archives April 2011

Android hacking the Linux-style

Posted by admin on April 19, 2011  /   Posted in Linux

Download adb by googling: “adb linux download”
It’s a tar file, untar it somewhere and make it an executable file.

If you’re like me, running 64-bit Linux, you have to install the missing 32-bit library required by adb manually:
For example:

apt-get install libc6-i386
apt-get install lib32stdc++6
apt-get install lib32ncurses5

TIP: use ldd /path/to/adb to see the list of the actual libraries required. Try to do this in Windows :)

Enabling the phone as a USB device.
Become UNIX root:

$vi /etc/udev/rules.d/50-android.rules

SUBSYSTEM==”usb|usb_device”, SYSFS{idVendor}==”0bb4″, MODE=”0660″, GROUP=”plugdev”
SUBSYSTEM==”usb|usb_device”, ATTR{idVendor}==”0bb4″, ATTR{idProduct}==”0c02″, SYMLINK+=”android_adb”
SUBSYSTEM==”usb|usb_device”, ATTR{idVendor}==”0bb4″, ATTR{idProduct}==”0c01″, SYMLINK+=”android_fastboot”

NOTE: The hexadecimal numbers above (0bb4:0c02) are the two-part ID of the phone when you use the lsusb command to list attached usb devices. It’s easy to recognize because the manufacturer and/or phone model should be listed along with the output.

$chmod a+r /etc/udev/rules.d/50-android.rules
$/path/to/adb devices  <-- this should tell you that the phone as been found
$/path/to/adb shell    <-- this will give you an actual UNIX shell

Now you can use adb to interact with your phone at system level, for example:

Backing up your sdcard is as simple as this:

./adb pull /sdcard/ /tmp/sdcard

If your phone has been rooted, you can do the following:

Always start by getting a root shell on the phone:

user@pc$ adb shell
$ su -

To remount /system read-write (adb remount):

# mount -o remount,rw /dev/block/mtdblock3 /system

To uninstall an application (adb uninstall):

# rm /system/app/PackageYouNoLongerWant.apk
# pm uninstall

To put a file somewhere other than the SD-card (adb push):
Put the file on the SD-card as usual.

# mv /sdcard/file /where/you/want/to/put/the/file

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