Seems the problem is not ubiquity. Downgrading to 22.04.4 before installing made no improvement.
** No longer affects: ubiquity (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1960226 Title: Ubuntu Jammy Desktop fails to boot after install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1960226/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs