Same problem here. Solved by adding to /etc/mdadm/mdadm.conf this line: ARRAY /dev/md1 metadata=1.2 UUID=someuuid name=somename:0
/dev/md1 may be different for you. It' may be md/1, md1 or something. I get someuuid by using blkid utility. somename from mdadm --detail /dev/md1 To get information from dlkid and mdadm --detail you need to stop array first mdadm --stop /dev/md1 and then assemble it again: sudo mdadm --assemble /dev/md1 /dev/sdX1 /dev/sdY1 After that you will able to get UUID and array name. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/573477 Title: Mdadm array fails to assemble on boot. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/573477/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
