Can you please attach the files in /var/log/dist-upgrade to this bug report. Thank you for reporting this with us today.
** Changed in: update-manager (Ubuntu) Status: Unconfirmed => Needs Info -- "Size mismatch" error is unhelpful https://launchpad.net/bugs/77528 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs