---------------------------------------------------------------------- The RAID initialization script raid-reInit.sh assumes a system where: - four Serial ATA disks /dev/sda, /dev/sdb, /dev/sdc, /dev/sdd are installed, unused, and available for a RAID setup - you have used fdisk or cfdisk, or more dangerously sfdisk e.g. $ echo 0,,FD,- | sfdisk /dev/sda to create on each of the SATA disks a single primary partition of type 'FD' (Linux raid autodetect) - the system root / is safe on e.g. a Parallel ATA system disk and definitely not on one of the above SATA disks - you want a RAID-0 configured on the four disks (RAID0 is the fastest configuration but it doesn't offer any resilience or fault tolerance like true RAID) You can edit the script to reflect other SATA drives or a different RAID level. To create a new RAID on /dev/md0 run the above script as root. Your RAID files will then be available under /raid. If you created the RAID for the first time you probably have to format it first, using e.g. mkfs.jfs /dev/md0 mkdir /raid mount /dev/md0 /raid It is possible that after a reboot linux forgets the RAID configuration or does not automatically restart RAID. In this case, run the raid-reInit.sh again after a boot (but don't reformat the disk :-), then do a dpkg-reconfigure mdadm and select automatic start of raid. ----------------------------------------------------------------------