> What does doing > mdadm -Cv -n2 -l1 /dev/md0 /dev/sda /dev/sdb > do to the partition tables??? overwrites them. then again, there's nothing critical about partition tables - they're just a convention for slicing up the disk, not necessary in any sense. in fact, it can be quite handy to avoid partitions - I have one cluster where /dev/hda is an ext3 filesystem, mainly to avoid the bios bug of trying to boot the disk (in preference to PXE) even if there are no active partitions. the only downside to your "messed up" config is that the kernel won't autostart the raids. - 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