I can confirm this. My system (Thinkpad T61) froze while updating. After a reboot I finished the upgrade and I'm now having various issues:
1) System freezes during boot 2) X is not starting, have to stop/start gdm to make it work 3) System is freezing without apparent reason 4) X is crashing, I'm placed at the desktop login screen again Is there a way to downgrade again to 10.10? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/758411 Title: Upgrade from 10.10 to Natty results in system freeze -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs