There's a way to work around this. First, search for the pid of all running X server instances using the command:
ps aux | grep "/usr/bin/X" Choose the pid of the X process, and then: sudo kill PID where PID is the pid found on the first step. Now, run sudo lightdm, and you get to a live session with Unity. ** Also affects: lightdm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1039762 Title: freeze during Quantal install with USB non persistent key To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1039762/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs