/var/log/syslog, kern.log, and Xorg.0.log may help to diagnose the problem. I'm removing the duplicate status since its not a pb with update-manager and unaffecting update-manager.
** This bug is no longer a duplicate of bug 721306 [MASTER] Can't upgrade from 10.04LTS to 10.10 - E:Error, pkgProblemResolver::Resolve generated breaks - xorg-xserver-video-nouveau ** Package changed: update-manager (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/722334 Title: system broken during ugrade from lucid to maverick -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs