Found a solution to my problem. A package from ppa:irie/blender caused the problems. It installed a python3 version, which couldn't be upgraded. After uninstalling this package, the upgrade went through.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1414987 Title: Upgrading from 12.04.5 LTS to 14.04.1 LTS reports unresolvable issues To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1414987/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
