[linux-lvm] lvm2 tools can't locate pvs on entire disks
Klaus Strebel
klaus.strebel at gmx.net
Tue May 10 06:08:39 UTC 2005
Miles Crawford schrieb:
>
> I'm running into trouble here, getting the lvm scanning tools to notice
> PVs I have created on entire disks, like this:
>
> pvcreate /dev/hdd
>
> Some output:
>
> root at end root # lvm version
> LVM version: 2.01.04 (2005-02-09)
> Library version: 1.01.00-ioctl (2005-01-17)
> Driver version: 4.1.0
> root at end root # uname -a
> Linux end.snip.net 2.6.8 #6 Sat Oct 9 20:59:02 PDT 2004 i686 GNU/Linux
> root at end root # lvmdiskscan
> /dev/hda1 [ 111.79 GB]
> /dev/hdb1 [ 18.63 GB]
> /dev/hdd1 [ 186.31 GB]
> /dev/hdb2 [ 127.59 GB]
> /dev/hdb3 [ 2.83 GB]
> 0 disks
> 5 partitions
> 0 LVM physical volume whole disks
> 0 LVM physical volumes
> root at end root # pvscan
> No matching physical volumes found
>
> Well that's odd, I know they're there. Lets try this:
>
> root at end root # losetup /dev/loop0 /dev/hda
> root at end root # losetup /dev/loop1 /dev/hdd
> root at end root # pvscan
> PV /dev/loop0 VG media_vg lvm2 [111.79 GB / 0 free]
> PV /dev/loop1 VG media_vg lvm2 [186.31 GB / 0 free]
> Total: 2 [298.10 GB] / in use: 2 [298.10 GB] / in no VG: 0 [0 ]
Hi Miles,
the disks hda and hdb obviously are partitioned (they are shown as
/dev/hda1 and /dev/hdb1), so don't trying to detroy these partitions, he
doesn't know what the contents of, is good behaviour of lvm, isn't it ;-).
Ciao
Klaus
--
Mit freundlichen Grüssen / best regards
Klaus Strebel, Dipl.-Inform. (FH), mailto:klaus.strebel at gmx.net
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