Turns out my fix is wrong: it is clearing the superblocks in NEW_LABEL, but really the disk should not be touched until COMMIT.
** Tags removed: verification-needed verification-needed-bionic verification-needed-disco ** Tags added: verification-failed verification-failed-bionic verification-failed-disco -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828558 Title: installing ubuntu on a former md raid volume makes system unusable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/partman-base/+bug/1828558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs