[linux-lvm] PV not found

Roger Heflin rogerheflin at gmail.com
Wed Jan 2 15:23:30 UTC 2019

Disable lvmetad (in systemctl and by editing lvm.conf to not use metad).

I have had lvmetad cause disks to not get detected on boot up on
several reboots. Restarting it will fix it sometimes and then doing a
vgchange -ay afterwards enabled the lvs.  It is easiest to just
disable it as I believe I have seen notes indicating lvmetad is being
moved away from.

On Wed, Jan 2, 2019 at 4:11 AM Giuseppe Vacanti <giuseppe at vacanti.org> wrote:
> Hello,
> I have found a solution to the problem, however the problem seems to come back after every reboot.
> I have been put on the good path by the remarks made on this list by John and Gionatan.
> The fix is the following:
> - convince myself that the device has the correct uuid, I used blkid and compared the result with the information in the lvm backup
> - run pvck -t on /dev/sdc. Nothing special, all seems OK
> - run vgscan --cache. This command brings back knowledge of the VG the PV belongs to
> - now pvs lists my PV again, but the LV is inactive
> - I activate the LV with lvchange
> - all is back, I can mount and use the LV
> After a reboot however the information about the VG is gone again, and I have to repeat the steps above to be able to use the LV.
> I have a running system, but I don't know what is happening. Where can I look to figure this out?
> Regards, Giuseppe
> --
> Giuseppe Vacanti
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