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<div style="direction: ltr;">Hello,</div>
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<div style="direction: ltr;">I did not know dmsetup works with lvm file names, did you try to run `dmsetup ls` to see the known devices and the dm compatible name?</div>
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<div style="direction: ltr;">Gruss</div>
<div style="direction: ltr;">Bernd</div>
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<div id="divRplyFwdMsg" dir="dir="ltr""><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Von:</b> linux-lvm-bounces@redhat.com im Auftrag von Zdenek Kabelac <zkabelac@redhat.com><br>
<b>Gesendet:</b> Dienstag, August 13, 2019 3:54 PM<br>
<b>An:</b> LVM general discussion and development; Christoph Pleger<br>
<b>Betreff:</b> Re: [linux-lvm] dmsetup says "Device does not exist", though it exists
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Dne 13. 08. 19 v 9:11 Christoph Pleger napsal(a): <br>
> Hello, <br>
> <br>
> I have a volume group with 20 logical volumes. Only the last one of these <br>
> volumes has a strange problem with dmsetup, shown by these commands and output <br>
> on the command line: <br>
> <br>
> root@host:/home/linux# /sbin/dmsetup info -c -o name --noheadings /dev/vg/lv20 <br>
> Device does not exist. <br>
> Command failed <br>
> <br>
> root@host:/home/linux# lvdisplay -c /dev/vg/lv20 <br>
> /dev/vg/lv20:vg:3:1:-1:0:4194304:512:-1:0:-1:253:19 <br>
> <br>
> root@host:/home/linux# mount /dev/vg/lv20 /mnt <br>
> root@host:/home/linux# ls /mnt <br>
> lost+found data1 data2 <br>
> <br>
> That is, dmsetup says "Device does not exist" about a logical volume, though <br>
> the volume exists and is operating normally. What is the possible problem here?
<br>
> <br>
<br>
Hi <br>
<br>
Have you tried strace ? <br>
<br>
Are you using this only in singly machine with properly running udev ? <br>
Kernel version, lvm version, distribution... ? <br>
<br>
<br>
Zdenek <br>
<br>
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