[PVE-User] LVM Rescue

Stoiko Ivanov s.ivanov at proxmox.com
Fri Jul 17 10:00:07 CEST 2020


Hi,

On Fri, 17 Jul 2020 09:36:24 +0200
Gregor Burck <gregor at aeppelbroe.de> wrote:

> Hi,
> 
> first: is is alowed to post an question here and the forum? Someone  
> will be on both, other only here or there?

allowed - yes (both are public forums)
encouraged - no - all of us here at proxmox read both and try to help out
- if you post to both that leads to double effort. Of course if you don't
  get an answer on either of both - you can/should try to reach out via the
  other medium (best with referencing the forum/mailinglist thread :)

> 
> second:
> 
> I've trouble with an not started pve server, he've problems with his  
> lvm storage.
>  From a live System I could see the disks.
> 
> My question now is, could I copy them with dd to an external medium?
> Like: 'dd if=/dev/pve/vm-102-disk-0 of=/mnt/USB/image.img bs=...'
The command looks ok - and if the disk contents are ok you should be
able to use the resulting image.img as raw image for the guest (name it
appropriately and put it in the right path in a configured storage)

OTOH - if the contents of the LV /dev/pve/vm-102-disk-0 have a problem
then copying it won't help - but it's probably the first thing I'd try in
that situation.

Hope that helps!
stoiko

> 
> The problem occure when I setup an NFS Backup Storage and made an  
> reboot,... so there is now no vaild backup.
> 
> Thank for all little help,...
> 
> Gregor
> 
> 
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> 
> 





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