You were correct. Upgrade seems to have gone through. Lets look at the update-manager package.
Post the output of: apt-cache policy update-manager -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/697568 Title: package update-manager 1:0.134.11 [modified: usr/share/gconf/schemas /update-manager.schemas] failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs