Sorry your report got unattended. I believe update-manager now restores the original sources.list if it fails. Please feel free to reopen by marking as "new" if the problem is still present with current versions of update-manager.
** Changed in: update-manager-core (Ubuntu) Status: New => Invalid ** Package changed: update-manager-core (Ubuntu) => update-manager (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/360823 Title: do-release-upgrade (7.10 to 8.04) replaces sources.list with target distribution even if upgrade confirmation is negative To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/360823/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs