This one will really curl your hair. So, operating with the knowledge that the checksum's state of correctness or incorrectness was changing all the time, I did this: while [ $? != 0 ] ; do mdadm -A /dev/md0 /dev/sd[abcd]1 done after 1,518 trials it successfully assembled. *beats head against wall* -- Josh Litherland (josh@xxxxxxxxxxx) - 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