*** This bug is a duplicate of bug 1069133 *** https://bugs.launchpad.net/bugs/1069133
ppa-purge ppa:oibaf/graphics-drivers did the trick. Thanks for pointing me in the right direction! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1453601 Title: Upgrade tool failure 14.10-15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1453601/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs