On Thu, Dec 23, 2021 at 10:55:01PM -0500, Tony Bush wrote: > /dev/mapper/sda /dev/mapper/sdb /dev/mapper/sdc /dev/mapper/sdd > /dev/mapper/sde Hi Tony, your examine output of the one drive that was left showed Device role 1, and count starts from 0 so that's the 2nd drive in the array. The order of the others is unknown so yes, unless you are able to derive order from raw data, you simply have to try all combinations. This can be scripted as well. Furthermore you should --examine the array you created and make sure that all other variables (offset, level, layout, ...), match your previous --examine. As for re-creating overlays, you can do that for every single step but it might not be necessary just for mount attempt. Note that there is the case where mounting might succeed but drive order is still wrong - find a large file and see if it is fully intact. Best of luck, Andreas Klauer