Well nothing to lose now so if you come up with any exotic ideas you wanna try please let me know, I will keep the partition for the next couple of days. Thank you for your time. On Thu, Nov 7, 2019 at 2:44 AM Qu Wenruo <quwenruo.btrfs@xxxxxxx> wrote: > > > > On 2019/11/6 下午11:52, Sergiu Cozma wrote: > > 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 :( > > Not sure how gparted handle resize, but I guess it should use > btrfs-progs to do the resize? > > > > > Any chance to recover or rebuild the chunk tree? > > I don't think so. Since it's wiped, there is no guarantee that only > chunk tree is wiped. > > THanks, > Qu > > > > > > > > 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 > >>> > >> >
