On Sat, 8 Aug 2015, Thomas Fjellstrom wrote:
I did try that :( It fails to assemble because it only sees sdc as a spare. Maybe because I did things with the old mdadm first, and did a --remove? That seems to have wiped out the "slot" information (it's -1) so the assemble force magic can't figure things out? Just a guess on my part.
Unless someone else has a better idea, I'd say you're right. If you would have unplugged the failed drive (so it disappeared completely), it could probably have been re-added. So unless you have a copy of the old superblock, your only way to proceed now is to use --create --assume-clean and get all the parameters right (order, offsets etc). There are lots of examples in the mailing list archives of people trying this and some actually suceeding.
-- Mikael Abrahamsson email: swmike@xxxxxxxxx -- 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
