On 11/10/2015 04:33 PM, Mathias Mueller wrote: > Hi Phil, > >>> This both combinations >> >> Well, I gave you *four* combinations for order, and two suggestions for >> chunk size. Eight combinations to try. > > Sorry, this two words were just the beginning of a sentence, which I > didn't finish an forgot to remove :) > > I tried 16 combinations at all (eight with --data-offset=1024 and eight > with --data-offset=2048), the following four combinations gave the > "/dev/md0 has unsupported feature(s)" message occurs: > > --data-offset=1024 --chunk 64: sde sdd sdb sdc > --data-offset=1024 --chunk 512: sde sdd sdb sdc > --data-offset=1024 --chunk 64: sde sdb sdd sdc > --data-offset=1024 --chunk 512: sde sdb sdd sdc > > the other four combinations with --data-offset=1024 and all eight > combinations with --data-offset=2048 gave > > fsck.ext2: Superblock invalid, trying backup superblocks... > fsck.ext2: Bad magic number in super-block while trying to open /dev/md0 You're not providing enough information. Show the new vs. old name/serial combinations, then show the --create and fsck command/output, one by one. For now, use data offset 2048 for all of them. Phil -- 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
