Mounting a Linux LVM volume

on ubuntu you must install  

apt-get install lvm2
modprobe dm-mod
vgchange -a y

You do not mount a partition of type "Linux LVM" the same way you mount a partition using a standard Linux file system (e.g. ext2, ext3).

# fdisk -l /dev/hda

Disk /dev/hda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 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       19457   156183930   8e  Linux LVM

# mount /dev/hda2 /tmp/mnt
mount: /dev/hda2 already mounted or /tmp/mnt busy

First, let's determine the volume group containing the physical volume /dev/hda2.

# pvs
  PV         VG         Fmt  Attr PSize   PFree 
  /dev/hda2  VolGroup01 lvm2 a-   148.94G 32.00M
  /dev/hdb2  VolGroup00 lvm2 a-   114.94G 96.00M

Next, let's list the logical volumes in VolGroup01.

# lvdisplay /dev/VolGroup01
  --- Logical volume ---
  LV Name                /dev/VolGroup01/LogVol00
  VG Name                VolGroup01
  LV UUID                zOQogm-G8I7-a4WC-T7KI-AhWe-Ex3Y-JVzFcR
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                146.97 GB
  Current LE             4703
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:2
   
  --- Logical volume ---
  LV Name                /dev/VolGroup01/LogVol01
  VG Name                VolGroup01
  LV UUID                araUBI-4eer-uh5L-Dvnr-3bI6-4gYg-APgYy2
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                1.94 GB
  Current LE             62
  Segments               1
  Allocation             inherit
  Read ahead sectors     0
  Block device           253:3

The logical volume I would like to "mount" (in purely the computing-related sense) is /dev/VolGroup01/LogVol00. The other logical volume is a swap partition.

# mount /dev/VolGroup01/LogVol00 /tmp/mnt

refer : http://www.brandonhutchinson.com/Mounting_a_Linux_LVM_volume.html

http://www.linuxquestions.org/questions/fedora-35/how-can-i-mount-lvm-partition-in-ubuntu-569507/