I have been making some progress with my attempted raid1 of boot and root... but I just can't get it to boot. I have looked at several docs and tried umpteen times to tweak based on suggestions and documentation. So if there is any other advice out there.. please... I am near the end of my rope. I have a system with two sata drives and a 2.4.29 kernel w/mdadm and the md driver in the kernel. I see the raid personalities in /proc/mdstat when the system boots. I have added a kernel parm md=1,/dev/sda3,/dev/sdb3 to my grub.conf line. When I boot the system it fails to setup the array md1 because it cannot read the superblock for the array. Is this because the /dev/sda3 fs is already loading or mounted? An entry in /var/log/messages tells me: md: could not lock [08:03] zero size? What else should I look for? I may be forced to give up on software raid completely if I cannot solve this mystery. That will mean the windows grunts here will have more ammo to insist on a change to windows platforms for our servers.... grumble! hoping against hope for input. cheers... --p - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html