also btrfs check --readonly /dev/sdb4 Opening filesystem to check... checksum verify failed on 856119312384 found 000000B6 wanted 00000000 checksum verify failed on 856119312384 found 000000B6 wanted 00000000 bad tree block 856119312384, bytenr mismatch, want=856119312384, have=0 ERROR: cannot read chunk root ERROR: cannot open file system On Tue, Nov 5, 2019 at 5:04 PM Sergiu Cozma <lssjbrolli@xxxxxxxxx> 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 > [ 2295.237145] BTRFS error (device sdb4): failed to read chunk root > [ 2295.301067] BTRFS error (device sdb4): open_ctree failed
