On 8/22/14, 9:19 AM, Mark Ballard wrote: > Ya. It did look that way. 'Scuse me for not checking first. > > But my point is that it may still be a problem for ext4, dumpe2fs, > e2fsck, fsck and presumably gparted and so on. > > That is, would it not be polite of them to report the error ...<drum > roll>... accurately? Ah, I see. So you don't like "corrupted" - you'd like to know that it's something else perfectly valid, just not the thing you were looking for. Maybe like: # misc/dumpe2fs /dev/sdc1 dumpe2fs 1.43-WIP (09-Jul-2014) misc/dumpe2fs: Superblock checksum does not match superblock while trying to open /dev/sdc1 Couldn't find valid filesystem superblock. /dev/sdc1 contains a xfs file system # misc/dumpe2fs /dev/sdc dumpe2fs 1.43-WIP (09-Jul-2014) misc/dumpe2fs: Superblock checksum does not match superblock while trying to open /dev/sdc Couldn't find valid filesystem superblock. /dev/sdc is entire device, not just one partition! -Eric > (No irony intended.) > > > On 19 August 2014 15:36, Eric Sandeen <sandeen@xxxxxxxxxx> wrote: >> On 8/18/14, 3:23 PM, Mark Ballard wrote: >>>> I'm guessing that it's the encryption getting in your way. >>> >>> Cheers, Eric. Does rather look that way. But for the sake of a user report... >>> >>>> >>>> How is /dev/sdb1 encrypted? Usually this is done with something like dm-crypt. >>>> Or is it hardware encryption managed in the bios? Did you unlock it? >>> >>> Done with crytpsetup using luks. >>> >>>> >>>> What does "blkid /dev/sdb1" say? >>>> >>> >>> It says Luks. >> >> and not ext4 - so you need to unlock it via mumblemumbleLuksStuffmumblemumble >> before you can operate on it with e2fsprogs tools. >> >> # cryptsetup luksOpen /dev/sdb1 <name>... or something. Sorry, I'm not a LUKS >> expert... >> >> Anyway, not an ext4 problem. Your superblock isn't corrupted, it's encrypted. :) >> >> -Eric >> -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
