Ubuntu
mdadm package

  1. Bug #290885
  2. Comment #43

Comment 43 for bug 290885

Revision history for this message
Dustin Kirkland  (kirkland) wrote : Re: [Bug 290885] Re: SRU: Backport of Boot Degraded RAID functionality from Intrepid to Hardy

On Thu, Nov 20, 2008 at 11:33 AM, Stefano Garavaglia
<email address hidden> wrote:
> I have a machine with non-raid root partition (indeed it's hw raid) and
> some extra software raid space which is in fstab to be mounted on pass
> 2.

See http://manpages.ubuntu.com/manpages/hardy/en/man5/fstab.html
regarding "pass 2".

This field does not define when a filesystem is mounted, but rather if
and when the fsck should be performed.

> I tried with stock 8.04.1 and if I remove a disk it halts during the boot with "file system check failed", because
> the /dev/md0 is in incative state, so even if it's not a problem with root on raid the boot is blocked as well.
>
> To let the system boot I had to manually mdadm --run /dev/md0, and later
> boots are ok even if degraded.

Right, or you can set the fs_passno 0, which would remove passing the
filesystem check as a boot requirement, if this is what you want.

:-Dustin