Re: LVM disappeared after upgrade in jessie

[Dan Ritter <dsr@randomstring.org>]

On Thu, Mar 10, 2016 at 01:37:06PM +0100, Sebastian Weckend wrote:
> In the backup of the LVM configuration I found
> 
> physical_volumes {
>     pv0 {
>         id = "zKO1Xq-VGmI-nX8P-Rwh3-wiFn-GuD4-26dAoZ"
>         device = "/dev/md127"   # Hint only
>         status = ["ALLOCATABLE"]
>         flags = []
>         dev_size = 5798400896   # 2.70009 Terabytes
>         pe_start = 2048
>         pe_count = 707812       # 2.70009 Terabytes
>     }
> }
> 
> but there is no /dev/md127. So it seems it is a software-raid problem.
> 
> Did I configure the software-raid wrong? And why did it disappear
> just now? Any idea how I get the partition back?


Does it appear in /proc/mdstat in any form? I suspect that the
device got renamed.

Any mentions of mdadm in dmesg output?

You can examine specific partitions with mdadm -Q /dev/sdXX

-dsr-