Am Donnerstag, 26. April 2012 schrieb Bart Noordervliet: > On Thu, Apr 26, 2012 at 11:06, Thomas Rohwer <trohwer@xxxxxxxx> wrote: > >> As for the two filesystems shown in btrfs fi show... I have no clue > >> what that is about. Did you maybe make a mistake to create a btrfs > >> filesystem on the whole disk at first? > > > > That is possible. But afterwards I certainly repartioned the device > > and created a btrfs filesystem on /dev/sda1. Maybe this info is only > > in the partition table? I understand that I should avoid mounting > > /dev/sda in this situation. > > Well I think there is a btrfs superblock still present from the > full-disk filesystem. Due to the offset of the first partition from > the start of the disk, this superblock was not overwritten when you > created the filesystem inside the partition. But they very much > overlap and the full-disk superblock will probably eventually be > overwritten by elements from the partition filesystem. How you would > go about erasing the stale superblock and whether it is safe to do so > I can't say though. There is the command wipefs. Whether its safe to use here I do not know. I wouldn´t try without a backup. -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- 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
