@Ryutaroh - could you test [1] if it gets you around this bug (1886811) and if bug 1890881 is present in focal as well?
[1]: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/4197 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886811 Title: systemd complains Failed to enqueue loopback interface start request: Operation not supported To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1886811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs