Hey everyone, Creating a new array today, I decided I should probably start using mdadm instead of the old tools. I've been using it a bit at home to do minor things, and it seemed nice. I've got a box with two 20G ide drives installed. One is currently the root drive at /dev/hda1 and the other is one of the disks for the mirrored pair at /dev/hde1. I'm trying to create the array with /dev/hdg1 as a failed disk, and then move /dev/hda to /dev/hde after I start booting the machine off of /dev/md0. When I do: # mdadm --create /dev/md0 --level 1 --raid-disks=2 /dev/hde1 /dev/hdg1 I get: mdadm: Cannot open /dev/hdg1: No such device or address mdadm: create aborted This makes sense, as /dev/hdg doesn't really exist yet. I've tried doing: # mdadm --set-faulty /dev/md0 /dev/hdg1 but it doesn't seem to help. How can I build an array like this via mdadm? Ross Vandegrift ross@willow.seitz.com - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html