I think the thing to do here is to improve the error message, to point users towards the necessary information on how to get their unofficial mirrors used during upgrade. The actual disabling of unknown mirrors is still quite deliberate, and guards against other more severe kinds of upgrade failures.
Swen, could you attach the pre-upgrade version of /etc/apt/sources.list? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/964812 Title: release upgrade failed because of missing essential package ubuntu- minimal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/964812/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
