FYI i had a similar problem upgrading from 8.10 to 9.04
boot failure occurs after loading mdadm so i logged into the maintenance console and used the command supplied by the OP. mdadm --examine --scan --config=mdadm.conf >> /etc/mdadm/mdadm.conf this command added the necessary lines to mdadm.conf and everything ran fine after that -- mdadm software raid breaks on intrepid-jaunty upgrade https://bugs.launchpad.net/bugs/330298 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs