On Sun, Aug 13, 2017 at 11:12 AM, Christian Rene Thelen <the@xxxxxx> wrote: > I have formated an encrypted disk, containing a LVM with a btrfs system. > > All superblocks appear to be destroyed; This is an unclear description. I don't understand the exact layout of the storage stack, and what part of it you formatted. For example I can't tell if the whole block device is encrypted, a partition is encrypted, or if it's the LV that's encrypted. And I can't tell if the formatting was a mistake, and what you accidentally formatted. I can't tell if the encrypted device opens without error, if the LV is discovered. You need to be really clear because any changes you make dramatically increase the chance of total data loss. What do you get for: $ sudo btrfs rescue super -v /dev/mapper/... This should be the logical block device that contains the Btrfs file system, the device you would mount (if it weren't damaged). It's possible but somewhat unlikely that all of the supers are damaged; but it depends on the size of the file system and what you formatted. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
