The "WARNING: Failed to read mirror file" seemed to stop me from using "upgrade-manager -d", but on the other hand "do-release-upgrade -d" seems to work. I still get the warning, though, and I'm running the upgrade right now. With upgrade-manager, it never started to download files after the warning message came.
I'm trying to upgrade from 10.04 LTS to 12.04 LTS. The 12.04.1 release was released today. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/958559 Title: WARNING: Failed to read mirror file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/958559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs