Mac OS X Lion: Logging in is no longer possible (iMac) (SOLVED). Solution:
Back up all of the files through SSH on an external hard disk, format the Mac OS X partition to FAT, using Ubuntu Live CD, go to Recovery Mode, format the partition to HFS+, and "reinstall" Mac OS X Lion.
This only happens on the iMac, it doesn't happen on the MacBook Pro.
I can still login through SSH, but I can't through the computer itself.
Command Line + Mac OS X = Not a good combination.
I already tried the single user mode, but Root can't do anything in there.
Also tried to change passwords, but it didn't help as well.
Tags: Mac OS X Lion: Logging in is no longer possible (iMac) (SOLVED), PC, Mac, OS, OSX, Lion, 10, 10.7, iMac, Login, Log, In, Command, Line, SSH, Single, User, Mode, Root, is, useless