Hi List I managed to boot into my Raid, now I would like to add the 'failed-disk': raidhotadd /dev/md/1 /dev/hda3 gives me: /dev/md/1: can not hot-add disk: too small disk! sfdisk --force /dev/hdc | sfdisk /dev/hda gives me: Checking that no-one is using this disk right now ... Checking that no-one is using this disk right now ... BLKRRPART: Device or resource busy This disk is currently in use - repartitioning is probably a bad idea. Umount all file systems, and swapoff all swap partitions on this disk. Use the --no-reread flag to suppress this check. Use the --force flag to overrule all checks. BLKRRPART: Device or resource busy Any idea how I could raidhotadd /dev/hda or to duplicate my hdc partition table to hda? Thanks for your time and help. Zeno - 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