Hello, my debian 4.0 box works fine with linux software-raid. today, I have tested the possibilities of the mdadm tool. I have removed a disc, I have added a disc and finaly I have stoped a RAID-device. After the reboot, I have created a RAID-device with the previously used partion. mdadm --create /dev/md8 --raid-devices=2 --level=1 /dev/sda10 missing mdadm: /dev/sda10 appears to be part of a raid array: level=raid1 devices=2 ctime=Tue Dec 18 17:42:58 2007 Continue creating array? y mdadm: array /dev/md8 started. After the next reboot, the device does not start. why ? can anyone help me ? Tino - 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