Hello btrfs experts, I need your help trying to recover an external HDD. I accidentally created a zfs partition on my external HD, which of course screw up the whole partition. I quickly unplugged it and it being a 1TB drive is assume there is still data on it. With some great help on IRC I searched for tags using grep and found many positions: https://paste.ee/p/xzL5x Now I would like to scan all these positions for their information and somehow piece it together, I know there is supposed to be a superblock around 256GB but I'm not sure where the partition started (the search was run from a manually created partition starting at 1MB). In general I would be happy if someone can point me to a library that can do low level reading and piecing together of these pieces of meta information and see what is left. I know there is btrfs-check etc. but these need the superblock to be known. Also on another messed up drive (I screwed up two btrfs drives in the same way at the same time) I was able to find the third superblock, but it seems they in the end pointed to other parts in the file system in the beginning of the drive which were broken. In general I would really want the lowest level library that can read these pieces of information and try to recover anything. Any pointers are very appreciated. -- 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
