[PVE-User] LVM/pvesm udev database initialization warnings after import of KVM images

Gianni Milo gianni.milo22 at gmail.com
Fri Jan 10 19:00:38 CET 2020


No, normally it's not required to do that. It appears that some people have
had this issue when migrating a VM from raw to thin lvm (?), see the
link below for more information...

https://forum.proxmox.com/threads/error-clone-failed-command-sbin-lvs-separator-noheadings-got-timeout.52519/#post-261766

It's unclear what is causing this. Perhaps an unfinished backup
restore/clone job?
Better to do some further tests, for example by creating a blank thin lvm
based VM and see if the issue persists.

G.


On Fri, 10 Jan 2020 at 15:47, Frank Thommen <f.thommen at dkfz-heidelberg.de>
wrote:

> yes it did. Thank you very much.
>
> Is this a step that normally has to be executed after having imported a
> disk image? If yes, then this could perhaps be added to
> https://pve.proxmox.com/wiki/Migration_of_servers_to_Proxmox_VE#Qemu.2FKVM
> .
>
> Cheers
> frank
>
>
> On 1/10/20 3:32 PM, Gianni Milo wrote:
> > Does issuing 'udevadm trigger' helps?
> >
> > On Fri, 10 Jan 2020 at 12:44, Frank Thommen <
> f.thommen at dkfz-heidelberg.de>
> > wrote:
> >
> >> Dear all,
> >>
> >> after having (successfully) imported two KVM disk images from oVirt, LVM
> >> and pvesm complain about some udev initialization problem:
> >>
> >> root at pve01:~# pvesm status
> >>     WARNING: Device /dev/dm-8 not initialized in udev database even
> after
> >> waiting 10000000 microseconds.
> >>     WARNING: Device /dev/dm-9 not initialized in udev database even
> after
> >> waiting 10000000 microseconds.
> >>     WARNING: Device /dev/dm-8 not initialized in udev database even
> after
> >> waiting 10000000 microseconds.
> >>     WARNING: Device /dev/dm-9 not initialized in udev database even
> after
> >> waiting 10000000 microseconds.
> >> Name             Type     Status           Total            Used
> >> Available        %
> >> local             dir     active        98559220        45640836
> >> 47868836   46.31%
> >> local-lvm     lvmthin     active       832245760        71573135
> >> 760672624    8.60%
> >> root at pve01:~#
> >>
> >> root at pve01:~# lvdisplay
> >>     WARNING: Device /dev/dm-8 not initialized in udev database even
> after
> >> waiting 10000000 microseconds.
> >>     WARNING: Device /dev/dm-9 not initialized in udev database even
> after
> >> waiting 10000000 microseconds.
> >>     --- Logical volume ---
> >>     LV Path                /dev/pve/swap
> >>     LV Name                swap
> >>     VG Name                pve
> >>     [...]
> >> root at pve01:~#
> >>
> >> However this doesn't seem to influence the functionality of the VMs.
> >>
> >> Any idea what could be the problem and how to fix it?
> >>
> >> Thank you very much in advance
> >> Frank
> >> _______________________________________________
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> >>
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