How to mout LVM?

Tony Nelson tonynelson at georgeanelson.com
Mon Nov 20 19:32:00 UTC 2006


At 9:53 AM -0200 11/20/06, Clodoaldo wrote:
>I'm running FC5 with default partitions.
>
>I installed a new disk in IDE 0 and moved the old disk to IDE 1.
>
>Then installed FC6 on the new disk with default partitions and left
>the old disk untouched. Now i can't mount the old disk to copy data.
 ...
>I need to learn how to mount the other disk so I can migrate to FC6. I
>suspect it is already mounted, in which case i'm afraid i can produce
>a mess.

It is not mounted unless you see it in /etc/mtab or /proc/mounts, and it
would need a line in /etc/fstab for that to happen.


>I have read this but it looks like it is not the case:
>http://www.die.net/doc/linux/HOWTO/LVM-HOWTO-16.html
>
># vgs
>  VG         #PV #LV #SN Attr   VSize  VFree
>  VolGroup00   1   2   0 wz--n- 76.22G 32.00M
>  VolGroup01   1   2   0 wz--n- 74.41G 32.00M
>
># pvscan
>  PV /dev/hdc2   VG VolGroup01   lvm2 [74.41 GB / 32.00 MB free]
>  PV /dev/hda2   VG VolGroup00   lvm2 [76.22 GB / 32.00 MB free]
>  Total: 2 [150.62 GB] / in use: 2 [150.62 GB] / in no VG: 0 [0   ]
>
># fdisk -l
>Disk /dev/hda: 81.9 GB, 81964302336 bytes
>255 heads, 63 sectors/track, 9964 cylinders
>Units = cylinders of 16065 * 512 = 8225280 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
>/dev/hda1   *           1          13      104391   83  Linux
>/dev/hda2              14        9964    79931407+  8e  Linux LVM
>
>Disk /dev/hdc: 80.0 GB, 80026361856 bytes
>255 heads, 63 sectors/track, 9729 cylinders
>Units = cylinders of 16065 * 512 = 8225280 bytes
>
>   Device Boot      Start         End      Blocks   Id  System
>/dev/hdc1   *           1          13      104391   83  Linux
>/dev/hdc2              14        9729    78043770   8e  Linux LVM
>
>Disk /dev/dm-0: 80.7 GB, 80765517824 bytes
>255 heads, 63 sectors/track, 9819 cylinders
>Units = cylinders of 16065 * 512 = 8225280 bytes
>
>Disk /dev/dm-0 doesn't contain a valid partition table
>
>Disk /dev/dm-1: 1040 MB, 1040187392 bytes
>255 heads, 63 sectors/track, 126 cylinders
>Units = cylinders of 16065 * 512 = 8225280 bytes
>
>Disk /dev/dm-1 doesn't contain a valid partition table

What does "ls -d /dev/VolGroup*" say?  If it shows both, as it should,
mount the desired volume with "mount /dev/VolGroup0x/LogVol0x
/mnt/whatever".
-- 
____________________________________________________________________
TonyN.:'    The Great Writ     <mailto:tonynelson at georgeanelson.com>
      '      is no more.             <http://www.georgeanelson.com/>




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