On 06/16/2014 02:20 PM, Rainer Fügenstein wrote: > [root@gateway ~]# umount /dev/md1 > umount: /dev/md1: not mounted Yep, use mdadm --stop --force. If LVM is the culprit, you'll want to stop that right away. Phil -- 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