Hi, I have an interesting challenge, maybe one of you can help me :-) I am creating an MD RAID 1 array consisting out of two SATA disks (currently /dev/sdb1 and /dev/sdc1). Both partitions use the Sun disk label and the partitions used start on cylinder 1. Device Flag Start End Blocks Id System /dev/sdb1 1 60788 488271577+ fd Linux raid autodetect Device Flag Start End Blocks Id System /dev/sdc1 1 60788 488271577+ fd Linux raid autodetect When I run the mdadm command to construct the array (mdadm --create /dev/md0 --level=1 --raid-devices=2 --run /dev/sdb1 /dev/sdc1) all goes fine, the array syncs up and all. However, when you do a blkid -c /dev/null you'll see that both /dev/sdb1 and /dev/sdc1 both share the same UUID. /dev/sdb1: UUID="978635d6-52ab-c92b-76ea-5a12e49bd4b5" TYPE="linux_raid_member" /dev/sdc1: UUID="978635d6-52ab-c92b-76ea-5a12e49bd4b5" TYPE="linux_raid_member" This is a big problem since after a reboot it might be that /dev/sdb becomes /dev/sda and /dev/sdc becomes /dev/sda (this actually happens, both on x86 and sparc). With other words, without having unique UUIDs there is no way you can construct a proper /etc/mdadm.conf file and start the array automaticly on every boot. Any ideas on a work around? Thanks, Patrick _______________________________________________ sparc mailing list sparc@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/sparc