Thanks for the bug report. Can you please also attach the other files in /var/log/dist-upgrade please?
** Changed in: update-manager (Ubuntu) Status: Unconfirmed => Needs Info -- udate-manager craches https://launchpad.net/bugs/77230 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs