Re: LVM-thin metadata corruption on Proxmox after RAID-5 issues – thin_repair/thin_dump fail

On April 10, 2026 10:31 am, Zdenek Kabelac wrote:
> Dne 10. 04. 26 v 5:43 Ming-Hung Tsai napsal(a):
>> On Fri, Apr 10, 2026 at 12:08=E2=80=AFAM Ray Davis <[email protected]> wrote=
:
>>>
>>> Hello,
>>>
>=20
>>=20
>> The specific error you mentioned, "value size mismatch: expected 8,
>> but got 24 (block 13182)", suggests it's an older version of
>> thin-provisioning-tools. Hopefully, a newer version will help resolve
>> this.
>>=20
>> Would you mind providing the raw metadata image for me to look into? Tha=
nk you.
>>=20
>>=20
>=20
>=20
> Hi
>=20
> There might be an interesting problem - whether distros like  Debian/Ubun=
tu=20
> noticed the switch to:
>=20
> https://github.com/device-mapper-utils/thin-provisioning-tools
>=20
>=20
> I think you may possibly need to do a gentle ping to maintainers of the=20
> original tool based on now outdated:
>=20
> https://github.com/jthornber/thin-provisioning-tools
>=20
> started to package newer version of these tools.
>=20
> (Possibly there should be a much much bigger reference to new repo :) if =
the=20
> current one is blindly ignored....)

Debian unstable currently has 1.1.0, but there's already a bug open to
update to 1.2.1 which I've pinged to mention the new repository and
version available there.