I saw a reference to this log file in another bug report. It has the particular parts of the upgrade that failed.
** Attachment added: "Upgrade log file" https://bugs.launchpad.net/ubuntu/+bug/1341209/+attachment/4151422/+files/main.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1341209 Title: Upgrade from 13.10 to 14.04 did not complete, but booted into 14.04? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1341209/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs