Comment 19 for bug 872220

I have one HDD with 11.10 installed on and booting fine.

If I now connect a disk which is part of a RAID the boot fails with mdadm complaining about a degraded root.

This is not satisfying as the RAID is not needed to boot the system, and the system hangs during boot when it was uncontrolled powered down.This makes it impossible to run the machine unattended.

In 10.04 and 10.11 the solution was more satisfying as the system would boot just fine but mark all HDDs of the RAID it found as SPARE and not activate it thusly the system booted just fine and just failed to activate the RAID.

I found some solutions but all would break on an unattended update (initramfs or kernel) and thusly again are not satisfying.

Is there a simple solution to make the system boot just fine as it did before in 10.04 and 10.11 and does not break with updates or break the updates themselves?