Hi, thanks for taking the time to help me out with this. The history is kinda bad, I tried to resize the partition but gparted failed saying that the the fs has errors and after throwing some commands found on the internet at it now I'm here :( Any chance to recover or rebuild the chunk tree? On Wed, Nov 6, 2019, 13:34 Qu Wenruo <quwenruo.btrfs@xxxxxxx> wrote: > > > > On 2019/11/5 下午11:04, Sergiu Cozma wrote: > > hi, i need some help to recover a btrfs partition > > i use btrfs-progs v5.3.1 > > > > btrfs rescue super-recover https://pastebin.com/mGEp6vjV > > btrfs inspect-internal dump-super -a https://pastebin.com/S4WrPQm1 > > btrfs inspect-internal dump-tree https://pastebin.com/yX1zUDxa > > > > can't mount the partition with > > BTRFS error (device sdb4): bad tree block start, want 856119312384 have 0 > > Something wiped your fs on-disk data. > And the wiped one belongs to one of the most essential tree, chunk tree. > > What's the history of the fs? > It doesn't look like a bug in btrfs, but some external thing wiped it. > > Thanks, > Qu > > > [ 2295.237145] BTRFS error (device sdb4): failed to read chunk root > > [ 2295.301067] BTRFS error (device sdb4): open_ctree failed > > >
