Do you plan to keep a raid on the SCSI drives? If so one option is to renumber you md* devices in mdadm and fstab. /dev/md0 becomes /dev/md1, md1 becomes md2, etc. Then add the UUID for md0 (on SCSI drives) to your mdadm.conf. You should be able to get the UUID from the mdadm tool. See the manpage. The other option is to destroy the raid array from the SCSI drives and recreate it. Blanking out the partition table on each scsi drive with fdisk should be sufficient. Before doing this I would physically disconnect the sata drives and boot with the gentoo boot/install cd, knoppix, or similar. UDEV should not enter into this. Your problem is not with the names in /dev/ but with the order the kernel detects the raid devices. UDEV is not invoked until much later. -- sg