IMHO this is another result of the circular reference in the archive server
http://archive.ubuntu.com/ubuntu Click on 'ubuntu' and see... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1744722 Title: Unknown bad source brings up during 'zesty' to 'artful' upgrade and It break the process To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1744722/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
