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Re: How to mount a LVM?

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Hello,

On 11/24/2016 08:35 PM, Robert Latest wrote:
> Hey all,
>
> I got it to work ONCE, but for the life of me I can't figure out how 
> to do it again.
>
> This is what I think I did the first time, but for the second time it 
> just doesn't work.
>
> root@dotcom:~# mdadm --assemble --scan
> mdadm: /dev/md/2 has been started with 1 drive.
> mdadm: /dev/md/3 has been started with 1 drive.
>
> ---OK, good so far. Now let's find the LVs
>
> root@dotcom:~# lvmdiskscan
>   /dev/loop0 [     213.51 MiB]
>   /dev/loop1 [     206.55 MiB]
>   /dev/sda1  [      30.00 GiB]
>   /dev/loop2 [     220.89 MiB]
>   /dev/md2   [     926.91 GiB] LVM physical volume
>   /dev/loop3 [     208.05 MiB]
>   /dev/md3   [     926.91 GiB] LVM physical volume
>   /dev/sda5  [       2.00 GiB]
>   /dev/sda6  [      30.00 GiB]
>   /dev/sda7  [     200.00 GiB]
>   /dev/sda8  [     203.76 GiB]
>   /dev/sdb1  [       2.37 GiB]
>   /dev/sdb2  [       2.00 GiB]
>   /dev/sdc1  [       2.37 GiB]
>   /dev/sdc2  [       2.00 GiB]
>   /dev/sdd1  [     465.76 GiB]
>   /dev/sde1  [     149.05 GiB]
>   0 disks
>   15 partitions
>   0 LVM physical volume whole disks
>   2 LVM physical volumes
>
> ---Still looking good. Now I'm supposed to find the logical volumes,
> ---but lvdisplay simply doesn't show anything.
>
> root@dotcom:~# lvdisplay
> root@dotcom:~#
>
> ---Now I'm stuck. All LVM instructions I find on the Internet say that 
> I find the path of the LVM device by using lvdisplay. Also I know that 
> one hour ago I had my volumes mounted and was copying data from them. 
> After properly syncing and unmounting them, and stopping the LVM and 
> md thingys, I'm stuck now.
>
> Any suggestions?
>
> robert

I have a problem to understand what is actually your issue with LVM. Was 
your system working before and now logical volumes that were existing 
before disappeared?

What is the situation with volume group or groups? What does vgscan or 
vgs commands say?

BR,

Roland

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Thread

How to mount a LVM? Robert Latest <boblatest@gmail.com> - 2016-11-24 19:40 +0100
  Re: How to mount a LVM? Roland Müller <roland.em0001@googlemail.com> - 2016-11-24 23:00 +0100
    Re: How to mount a LVM? Robert Latest <boblatest@gmail.com> - 2016-11-25 18:50 +0100
  Re: How to mount a LVM? Nicolas George <george@nsup.org> - 2016-11-24 23:30 +0100
    Re: How to mount a LVM? Rick Thomas <rbthomas@pobox.com> - 2016-11-25 15:10 +0100
  Re: How to mount a LVM? Alexandre GRIVEAUX <agriveaux@deutnet.info> - 2016-11-25 14:20 +0100
  Re: How to mount a LVM? Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-11-25 20:50 +0100
    Re: How to mount a LVM? Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-25 22:20 +0100
    Re: How to mount a LVM? Robert Latest <boblatest@gmail.com> - 2016-11-25 23:00 +0100
    Re: How to mount a LVM? David Wright <deblis@lionunicorn.co.uk> - 2016-11-26 05:20 +0100

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