On 2018/10/17 下午11:50, Michael Post wrote: > Hello Qu, > Hello Hugo, > > i got this result when i try to recover the chunk tree. > > # btrfs check /dev/mapper/vg0-virtualbox > bytenr mismatch, want=1263835381760, have=0 > ERROR: cannot open file system This means some essential trees get corrupted. I remember latest btrfs-progs should prompt which tree is corrupted. Would you please use latest btrfs-progs and try again? Also would you please paste the following output? # btrfs ins dump-super <device> # btrfs ins dump-tree -t chunk <device> Thanks, Qu > > > # btrfs rescue chunk-recover -y /dev/mapper/vg0-virtualbox > Scanning: DONE in dev0 > open with broken chunk error > Chunk tree recovery failed > > Did you any clue? > > > Michael >
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