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From: Zdenek Kabelac <zkabelac@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>,
	Christoph Pleger <christoph.pleger@cs.uni-dortmund.de>
Subject: Re: [linux-lvm] dmsetup says "Device does not exist", though it exists
Date: Tue, 13 Aug 2019 15:54:12 +0200	[thread overview]
Message-ID: <7f6f03e1-dbb1-971c-7f1f-f6c380a16b77@redhat.com> (raw)
In-Reply-To: <843935217a8de82c4cf47f02953489c6@cs.uni-dortmund.de>

Dne 13. 08. 19 v 9:11 Christoph Pleger napsal(a):
> Hello,
> 
> I have a volume group with 20 logical volumes. Only the last one of these 
> volumes has a strange problem with dmsetup, shown by these commands and output 
> on the command line:
> 
> root@host:/home/linux# /sbin/dmsetup info -c -o name --noheadings /dev/vg/lv20
> Device does not exist.
> Command failed
> 
> root@host:/home/linux# lvdisplay -c /dev/vg/lv20
>  � /dev/vg/lv20:vg:3:1:-1:0:4194304:512:-1:0:-1:253:19
> 
> root@host:/home/linux# mount /dev/vg/lv20 /mnt
> root@host:/home/linux# ls /mnt
> lost+found data1 data2
> 
> That is, dmsetup says "Device does not exist" about a logical volume, though 
> the volume exists and is operating normally. What is the possible problem here?
>

Hi

Have you tried  strace ?

Are you using this only in singly machine with properly running udev ?
Kernel version, lvm version,  distribution... ?


Zdenek

  reply	other threads:[~2019-08-13 13:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13  7:11 [linux-lvm] dmsetup says "Device does not exist", though it exists Christoph Pleger
2019-08-13 13:54 ` Zdenek Kabelac [this message]
2019-08-13 21:25   ` Bernd Eckenfels
2019-08-14 11:09     ` Zdenek Kabelac
2019-08-14  7:22   ` Christoph Pleger
2019-08-14 11:07     ` Zdenek Kabelac
2019-08-14 12:49       ` Christoph Pleger
2019-08-14 13:06       ` Christoph Pleger

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