Testing this on a Vivid system and setting the mirror to the anl.gov server caused the upgrade process to just quit. The release upgrader rewrote the entries from vivid to wily and then received 403s trying to contact the mirror, which then caused the failure.
, W:Failed to fetch http://mirror.mcs.anl.gov/pub/ubuntu/dists/wily-security/universe/binary-i386/Packages 403 Forbidden , W:Failed to fetch http://mirror.mcs.anl.gov/pub/ubuntu/dists/wily-security/multiverse/binary-i386/Packages 403 Forbidden , E:Some index files failed to download. They have been ignored, or old ones used instead.'. Retrying (currentRetry: 2) 2015-10-14 08:58:17,234 ERROR doUpdate() failed completely 2015-10-14 08:58:17,237 DEBUG abort called There was no prompt to report a bug, so its hard to say how many people end up in this situation. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1463680 Title: mirrors only added to mirrors.cfg, never removed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1463680/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
