Update: I have personally tried this. Works on my GSM Galaxy Nexus running ICS 4.0.1 and 4.0.2.
APPLY THIS AT YOUR OWN RISK!
- Superboot r3 – DOWNLOAD – MD5: c827e540aa0262adc2ded86a91c68492
The superboot image is also ‘insecure’, allowing you to use ‘adb remount’ as well as having full ADB root access to your device until such time as you reboot after running this process (it’s a non permanent ADB root as it’s a ‘fastboot boot’ and not a ‘fastboot flash’).
How to use Superboot – Windows, Linux and OSX
– Download the Superboot zip file above and extract to a directory
– Put your device in bootloader mode – Turn off the phone then turn on with the ‘volume up’ and ‘volume down’ buttons both pressed to enter the bootloader
Note: You may need to unlock the bootloader first, using “./fastboot-windows oem unlock” (or the appropriate version for your machine). Note that the OEM unlock sequence wipes your device.
– WINDOWS – double click “install-superboot-windows.bat”
– MAC – Open a terminal window to the directory containing the files, and type “chmod +x install-superboot-mac.sh’ followed by “./install-superboot-mac.sh”
– LINUX – Open a terminal window to the directory containing the files, and type “chmod +x install-superboot-linux.sh’ followed by “./install-superboot-linux.sh”
It’s just that easy.
I personally used the MAC method and it worked almost flawlessly. I had to repeat the process twice, as the first time gave me SuperUser, but did not grant permissions. After I did the process a second time, all was perfect. I used this method on the unlocked version of the Galaxy Nexus imported from the U.K. As stated previously. Unlocking your bootloader will wipe your device.
I am in no way a professional at this. I’m simply providing the guide that I personally used without issues. All credit and questions regarding this method should be directed to the original source, which can be found here
Let us know how it goes. Good luck and happy rooting!