Re: 'btrfs rescue' command (recommended by btrfs check) fails on old BTRFS RAID1 on (currently) openSUSE Leap 15.3

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

On 2022/5/21 04:21, Johannes Kastl wrote:
> Hello Qu,
>
> On 20.05.22 at 17:14 Johannes Kastl wrote:
>
>> I am trying to build this and will test it, hopefully tomorrow. I'll
>> let you know what happens...
>
> I was able to build an RPM for Leap 15.3, based on your branch.
>
>> https://build.opensuse.org/project/show/home:ojkastl_buildservice:btrfs_debugging
>>
>
> I installed it on my Leap 15.3 system, started the fix-device-size
> and... after only a couple of seconds it was done.
>
> No errors, just one line saying that it fixed something.
>
> I could mount the filesystem directly afterwards.

Great to know that.

>
> I unmounted and am currently running a btrfscheck on the filesystem,
> based on the code from your branch. I hope the filesystem is working
> again, and I can start using it again (tomorrow, the check will take ~8
> hours)...

Hope no error from btrfsck.

>
> I doubt that this will give valuable input to fix this error in
> btrfsprogs...

At least we know the new way to fix it is working.

BTW, mind to share things like `btrfs fi usage` and `btrfs fi df` when
you can mount the fs?

Thanks,
Qu
>
> Kind Regards,
> Johannes
>