I just used Unetbootin to create a persistent Xubuntu 11.10 install on a USB drive (FAT32). This worked fine the first time, but then required a password. I tried these combinations of logins and passwords:
None worked. I reinstalled. Same thing. I mounted the casper file system:
And edited (/media/casper)/etc/passwd to delete the 'x' in the root line. Login fails, and the 'x' miraculously found its way back into the passwd line..
mount /media/KITE/casper-rw /media/casper -o loop
Has anyone come across this, or similar, or have any ideas about how to resolve it?