Hi, I managed to solve this error and do the upgrade from 13.10 to 14.04.
If you have the Xorg-edgers PPA enabled you have to purge it first, in order to revert to the original config. However, I thought I just had to remove the PPA from my software sources and be done with it. That didn't work (which, in hindsight, is perfectly logical). The thing I tried after that was using ppa-purge of xorg-edgers. That didn't work as well...because I removed the PPA from my software sources. Duh. So, I just added xorg-edgers to my PPA's again, used ppa-purge to remove/revert and after that the upgrade from 13.10 to 14.04 went flawless. Long story short: you can only ppa-purge stuff that is in your list of software sources. Cheers, Sander -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1069133 Title: Get upgrade error 12.04 - 12.10 "Could not determine upgrade" - xorg from ppa To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1069133/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs