* [linux-lvm] How to repair superblock is corrupt
@ 2020-05-28 7:35 lampahome
2020-05-28 8:14 ` Gionatan Danti
0 siblings, 1 reply; 2+ messages in thread
From: lampahome @ 2020-05-28 7:35 UTC (permalink / raw)
To: linux-lvm
I create a vg1 on one SSD and create a lv1 in vg1.
Then I run:
sudo thin_check /dev/mapper/vg1-lv1
It shows:
examining superblock
superblock is corrupt
bad checksum in superblock
Can someone teach me how to fix corrupted superblock?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [linux-lvm] How to repair superblock is corrupt
2020-05-28 7:35 [linux-lvm] How to repair superblock is corrupt lampahome
@ 2020-05-28 8:14 ` Gionatan Danti
0 siblings, 0 replies; 2+ messages in thread
From: Gionatan Danti @ 2020-05-28 8:14 UTC (permalink / raw)
To: LVM general discussion and development; +Cc: lampahome
Il 2020-05-28 09:35 lampahome ha scritto:
> I create a vg1 on one SSD and create a lv1 in vg1.
> Then I run:
> sudo thin_check /dev/mapper/vg1-lv1
>
> It shows:
> examining superblock
> superblock is corrupt
> bad checksum in superblock
>
> Can someone teach me how to fix corrupted superblock?
Hi, thin_check should be run against the metadata device (more
precisely, against a snapshot of the metadata device).
I suggest you reading thin_check/thin_dump man pages:
https://www.systutorials.com/docs/linux/man/8-thin_check/
Regards.
--
Danti Gionatan
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Assyoma S.r.l. - www.assyoma.it [1]
email: g.danti@assyoma.it - info@assyoma.it
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