On Saturday July 16, jradford@xxxxxxx wrote: > Greetings all: > > Having a bit of difficulty with raid1, I built the array lastnight with > two new drives, and it built fine but when I rebooted I get the following > error when trying to start the array: > > I'm running Mandrake 10.1 kernel 2.6.8.1-12mdk > > [root@localhost jradford]# mdadm --version > mdadm - v1.7.0 - 11 August 2004 > > [root@bengali jradford]# mdadm -A -s > mdadm: failed to add /dev/hdc to /dev/md0: Device or resource busy This is telling you that /dev/hdc is 'busy'. Maybe a filesystem is mounted of it, or of a partition of it? Could it already be in use? 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