I followed two guides over at transformerprimeroot.com. One for rooting my transformer and one for installing ubuntu. The process seemed to do weird things to my binaries though, and several commmands i didn't know it would do. One of them was cd /system/bin/ && chmod 4777 There are other problems as well: Random crashes in gmail and other applications Compiling helloworld and installing via eclipse causes a segmentation fault. Starting a terminal emulator launches a shell with superuser permissions (i don't wan't that, i wan't to type su to do superuser stuff!) I did a factory reset because i thought that would restore my system directory, but it didn't. Android Market crashed just a few minutes ago, and i still get a root terminal when running terminal emulator. Now i feel kind of stupid because i didn't take a backup or verify that factory reset did what i thought it would do. Any tips on how to fix my system folder? Could i download a dump and copy over the system directory, or would that cause even more problems?