It looks to me like edubuntu-desktop may be missing from the list of metapkgs:
2012-10-31 12:18:41,938 DEBUG none of the '['ubuntu-desktop', 'kubuntu- desktop', 'xubuntu-desktop', 'ubuntustudio-desktop', 'ichthux-desktop', 'mythbuntu-desktop', 'ubuntu-netbook', 'kubuntu-netbook', 'lubuntu- desktop']' meta-pkgs installed and from DistUpgrade.cfg in the quantal release upgrader: [Distro] # the meta-pkgs we support MetaPkgs=ubuntu-desktop, kubuntu-desktop, xubuntu-desktop, ubuntustudio-desktop, ichthux-desktop, mythbuntu-desktop, ubuntu-netbook, kubuntu-netbook, lubuntu-desktop -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1076385 Title: Ubuntu 12.10 - Partial Update can't complete - Install Ubuntu.Desktop Impossible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1076385/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs