The apt.log indicates gnome-panel is the culprit, if I interpret it correctly. Reassigning to that.
** Package changed: update-manager (Ubuntu) => gnome-panel (Ubuntu) -- upgrade to karmic failed https://bugs.launchpad.net/bugs/444929 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
