You might try using the version of ubuntu-release-upgrader from bionic- proposed and then passing the environment variable which allows PPAs to the release upgrader e.g.: "RELEASE_UPGRADER_ALLOW_THIRD_PARTY=1 do- release".
** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813204 Title: found bug while upgrading to latest version of ubunutu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1813204/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs