See my Bug report + workaround there a few minutes ago: ( need to close it ... )
https://bugs.launchpad.net/ubuntu/+bug/1367666 I definitly can confirm this problem, in a VMware workstation and also with real Hardware. For the degraded MD device you need to boot a second time !! As described in my bug report problem can also be replicated easly by installing Ubuntu 14.04 on only 1 disk of a RAID1 device Workaound: echo "sleep 2" > /etc/initramfs/scripts/local-premount/delay.sh ; chmod +x delay.sh ; update-initramfs -u ( can also be done from the initramfs prompt by mounting the root device + chroot /root ) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1341312 Title: System couldn't boot from degraded raid 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1341312/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
