Many thanks Brian for pointing this out. For anyone else who finds this via a search engine, I fixed my problem with the help of some information from http://askubuntu.com/questions/202730/how-to-fix-the- unable-to-calculate-upgrade-issue-when-upgrading-from-12-04-to. Specifically I executed:
sudo apt-get remove xserver-xorg-video-* to remove an XVideo driver that was blocking my upgrade. After this I was able to complete a successful upgrade from 13.10 to 14.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1314739 Title: Unable to upgrade from 13.10 to 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1314739/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
