Jon Bendtsen said: > I have tried it, and it works fine. OK...I need massive help... I have 2 drives hda and hdc. hda contains 1 partition, the original installation. hdc has two partitions. One for /boot and one for / (and all subdirectories). I then created to raid1's with hdc as the primary drive and hda as a "failed-disk". This way I can always boot off of hda in case it doesn't work. /dev/md0 sits on hdc1 and contains /boot and /dev/md1 sits on hdc2. I then pvcreated /dev/md1 and created a root LV and then copied my installation. I modified lilo.conf and fstab and ran lilo (I'll include my lilo.conf at the end). My theory is that I can change my BIOS setting to boot off /dev/hdc and then once I am sure it works, change hda entries in my raiddtab to "raid-disk" and hot add them. Rerun lilo and then I should be able to boot off of hda.In theory. I can run lilo. It understands my raid disks (lilo is version 22.2, my kernel 2.4.18 and I am using lvm 1.0.5). However once I reboot and switch the BIOS, I now get L 80 80 80...when I try and boot of /dev/hdc. It still works fine booting off of hda. Can you help? Thanks, Scott HERE is my lilo.conf for the raid boot = /dev/md0 delay = 50 vga = normal lba32 image = /boot/vmlinuz root = /dev/rootvg/root label = linux initrd = /boot/initrd-lvm-2.4.18.gz ramdisk = 8192 read-only _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html