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List: fedora-list
Subject: Re: Fw: mount fails for btrfs filesystem, need help please.
From: "George N. White III" <gnwiii () gmail ! com>
Date: 2022-08-22 14:59:44
Message-ID: CAKTOP46nPB1A24OHJE-t=_Pe5689-GrWjFw2wsfqmOzZWgSYjQ () mail ! gmail ! com
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On Mon, Aug 22, 2022 at 9:57 AM George R Goffe via users <
users@lists.fedoraproject.org> wrote:
> Hi,
>
> I started getting i/o error messages accessing this filesystem so I
> rebooted the system. This might have been the wrong thing to do. This
> subsequent boot went to maintenance mode due the filesystem's path being in
> /etc/fstab.
>
> I need some help with this please. Here is what mount says:
>
> mount /dev/sda6 /opt.
>
> kernel: BTRFS info (device sda6): flagging fs with big metadata feature
> kernel: BTRFS info (device sda6): disk space caching is enabled
> kernel: BTRFS info (device sda6): has skinny extents
> kernel: BTRFS error (device sda6): parent transid verify failed on
> 148312850432 wanted 73476 found 73484
>
See: kernel: https://wiki.tnonline.net/w/Btrfs/Parent_Transid_Verify_Failed
for explanation
TLDNR: bad news, but btrfs experts may be able to help with recovery. The
article does
describe some information you should collect before asking for help. I
would add that
you should check the hardware: cables, drive S.M.A.R.T status. dodgy power
supply on
external drives, etc.
> kernel: BTRFS error (device sda6): failed to read block groups: -5
> kernel: BTRFS error (device sda6): open_ctree failed
>
--
George N. White III
[Attachment #5 (text/html)]
<div dir="ltr"><div dir="ltr">On Mon, Aug 22, 2022 at 9:57 AM George R Goffe via \
users <<a href="mailto:users@lists.fedoraproject.org">users@lists.fedoraproject.org</a>> \
wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" \
style="margin:0px 0px 0px 0.8ex;border-left:1px solid \
rgb(204,204,204);padding-left:1ex">Hi,<br> <br>
I started getting i/o error messages accessing this filesystem so I rebooted the \
system. This might have been the wrong thing to do. This subsequent boot went to \
maintenance mode due the filesystem's path being in /etc/fstab. <br> <br>
I need some help with this please. Here is what mount says:<br>
<br>
mount /dev/sda6 /opt.<br>
<br>
kernel: BTRFS info (device sda6): flagging fs with big metadata feature<br>
kernel: BTRFS info (device sda6): disk space caching is enabled<br>
kernel: BTRFS info (device sda6): has skinny extents<br>
kernel: BTRFS error (device sda6): parent transid verify failed on 148312850432 \
wanted 73476 found 73484<br></blockquote><div><br></div><div>See: kernel: <a \
href="https://wiki.tnonline.net/w/Btrfs/Parent_Transid_Verify_Failed">https://wiki.tnonline.net/w/Btrfs/Parent_Transid_Verify_Failed</a> \
for explanation<br></div><div><br></div><div>TLDNR: bad news, but btrfs experts may \
be able to help with recovery. The article does <br></div><div>describe some \
information you should collect before asking for help. I would add \
that</div><div>you should check the hardware: cables, drive S.M.A.R.T status. dodgy \
power supply on</div><div>external drives, etc.<br></div><div> </div><blockquote \
class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid \
rgb(204,204,204);padding-left:1ex">
kernel: BTRFS error (device sda6): failed to read block groups: -5<br>
kernel: BTRFS error (device sda6): open_ctree failed<br \
clear="all"></blockquote></div><br>-- <br><div dir="ltr" class="gmail_signature"><div \
dir="ltr"><div>George N. White III<br><br></div></div></div></div>
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