Okay, PLEASE somebody who knows answer the following: 1) what is the difference between running mdadm -A -ayes 1/dev/md1--uuid=xxxxx /dev/sd* and mdadm -A -amd 1/dev/md1 --uuid=xxxxx /dev/sd* In other words, how do the "yes" and "md" options behave differently. 2) If you create an array /dev/md0 with mdadm, is there any reason why you shouldn't start it as /dev/md1? The second option above (-amd 1) would NOT start an array that was created as /dev/md0 (under an older mdadm -- 1.8.? ) whereas the first option (-ayes /dev/md1) had no difficulty. Thank you. Andy Liebman - 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