AIUI, new trusty installs will hit this and update-manager will fail to upgrade forever. The only solution for users is to 'apt-get -f install' to force it. This means that desktop users will not get security updates after they install 14.04. This was confirmed yesterday by the security team in a newly installed VM (there have also been anecdotal reports on real hardware).
** Changed in: apt (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1452238 Title: Failed to upgrade system from 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1452238/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs