I didn't manage to get the file system to load as "read write" and eventually gave up on this route.  I checked out http://fokke.org/site/content/howto-create-android-updatezip-package and it seemed that an update.zip was the way to go (to patch without the OS booted). I downloaded the "unroot" patch that I referred earlier to get some hints on the structure. The direct link to unroot is at http://mygicasupport.com/applications/core/interface/file/attachment.php?id=3552 Below is wha