Wish you could root your device once and never have to root it again? If you rock a Motorola device such a dream could very well be a reality. Thanks to the hacking efforts of one Mr. @DJrBliss and P3Droid Motorola Android hardware owners can retain root access across updates by modifying a few lines of code in the “mount_ext3.sh” file using Root Explorer (or equivalent) — this means you also need to be rooted first. All that needs to be done to achieve this sudo-permenant root access is adding these three lines to the bottom of the file via a text editor:
chmod 4755 /system/bin/su
chmod 4755 /system/xbin/su
chmod 755 /system/app/Superuser.apk
Now, the “sudo”/”theoretically” part of it comes in the form of this: Motorola can update the mount_ext3.sh file to where adding the three aforementioned lines of code do nothing. So in essence it’s not technically “permeant”. But it is better than nothing.