On Fri, May 1, 2009 at 2:04 PM, Goswin von Brederlow <goswin-v-b@xxxxxx> wrote: > And is horribly ugly when you have to switch hardware. And try doing > it with disks from different controlers? What bios supports that? This is just a simple trade-off between two options. 1/ If you want to reliably boot from multiple disks then make a native md-raid1 array for /boot like hpa suggests. 2/ If you do not want to make /boot into an md-raid1, and you still want to boot from raid5, then use $VENDOR's raid5 option-rom and mdadm's external metadata support. There is no third option with native md-raid5 and grub2 because as Gabor and hpa point out it is not reliable and will break. > What bios even supports raid5? Just look for any off-the-shelf motherboard that says it has onboard raid5 support and is not using a dedicated hardware raid controller. Regards, Dan -- 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