On Thu, Oct 31, 2013 at 03:41:18PM +0100, Veljko wrote: > # sgdisk --backup=table /dev/sdb > # sgdisk --load-backup=table /dev/sda > # sgdisk -G /dev/sda I'm not familiar wiht sgdisk but you may need to call "partprobe" after these stages and before these ones… > # mdadm --manage /dev/md0 --add /dev/sda2 …to ensure that /dev/sdaX have appeared.