it seems to be related to having feisty-backports enabled in /etc/apt/sources.list
changing contents of /etc/apt/sources.list to -- deb http://security.ubuntu.com/ubuntu gutsy-security main restricted deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted deb http://security.ubuntu.com/ubuntu gutsy-security universe deb-src http://security.ubuntu.com/ubuntu gutsy-security universe deb http://security.ubuntu.com/ubuntu gutsy-security multiverse deb-src http://security.ubuntu.com/ubuntu gutsy-security multiverse deb http://archive.ubuntu.com/ubuntu/ gutsy main -- and re-running update-manager seems to fix the issue -- Gutsy upgrade path from feisty fails (update-manager) https://bugs.launchpad.net/bugs/150528 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs