On Tuesday October 21, morgy.wahl@xxxxxxxxx wrote: > these lines are the only uncommented ones in mdadm.conf: > DEVICE /dev/sd[abcd]1 > ARRAY /dev/md0 devices=/dev/sda1,/dev/sdb1,/dev/sdc1,/dev/sdd1 > > mdadm -Q /dev/md0 > mdadm --examine /dev/sda1 > mdadm --examine /dev/sdb1 > mdadm --examine /dev/sdc1 > mdadm --examine /dev/sdd1 > > mdadm /dev/md0 --remove /dev/sdc1 If the array was not running (as I think was implied in your other email) then this will have done nothing. > > mdadm -A /dev/md0 This should have worked. What do you get from mdadm -Av /dev/md0 ?? > > mdadm --readonly /dev/md0 This is a sensible precaution. > > mount /dev/md0 /mnt/temp > (this return an error) > e2fsck -n /dev/md0 > (lots of errors) It does sound like it is a mess, but there is nothing obvious in your description which would have caused it. Maybe if you could include the output of all the "mdadm --examine" commands? NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html