Public bug reported: I tried running `do-release-upgrade` on an Ubuntu 20.10 (Groovy Gorilla) system and received an error message from dist-upgrader tarball that an upgrade from Groovy to Impish is not supported. This is because DistUpgrade.cfg (distributed by the tarball) contains `From=Hirsute` and `To=Impish`.
A minimal fix for this would be to create a DistUpgrade.cfg.groovy and ensure `From=Groovy`. You'd want to look at the contents of DistUpgrade.cfg and DistUpgrade.cfg.focal to sort out what DistUpgrade.cfg.groovy should contain. We might also want to create a new demoted.cfg file but the demoted.cfg.focal file might capture everything that was demoted. (For what its worth I tested an upgrade of a stock Ubuntu 20.10 system to Ubuntu 21.10 by copying DistUpgrade.cfg.focal to DistUpgrade.cfg.groovy and did not run into any issues. ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New ** Tags: rls-ii-incoming ** Tags added: rls-ii-incoming -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1975533 Title: No longer possible to use do-release-upgrade on Groovy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1975533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs