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From: Sergiu Cozma <lssjbrolli@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: fix for ERROR: cannot read chunk root
Date: Wed, 6 Nov 2019 12:48:02 +0200
Message-ID: <CAJjG=75NkbJJ+r0zNrFt1KJQpxTyGKinkP-cqj0__wWrzVP4nw@mail.gmail.com> (raw)
In-Reply-To: <CAJjG=74frVNMRaUabyBckJcJwHYk33EQnFRZRa+dE3g-Wqp5Bg@mail.gmail.com>

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@gmail.com> 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

  reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-05 15:04 Sergiu Cozma
2019-11-06 10:48 ` Sergiu Cozma [this message]
2019-11-06 11:34 ` Qu Wenruo
2019-11-06 15:52   ` Sergiu Cozma
2019-11-06 16:21     ` Sergiu Cozma
2019-11-06 22:19       ` Sergiu Cozma
2019-11-07  0:44     ` Qu Wenruo
2019-11-07  7:16       ` Sergiu Cozma
2019-11-10 15:40         ` Sergiu Cozma
2019-11-11  1:46           ` Qu Wenruo

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