I have a mdadm device md1 which was composed of sda2, sdb2, and sdc2. One of sda or sdb has vanished on my latest boot, and now I cannot use md1.
md1 : inactive sdb2(S) sda2(S) 41945472 blocks
XFS (md1): SB buffer read failed
if I attempt to activate the array with mdadm.
I dd'ed an image (of both sda and sdb) and tried to mount them directly, but
$ mount -o ro,loop sda2.backup sda2 mount: unknown filesystem type 'linux_raid_member'
I would be happy with simply being able get the data from the partition before pulling the bad drive and repartitioning.