How to rename Logical Volume and Volume Group in Linux

Rename a Logical Volume

NOTE: To rename a Logical Volume you will have to unmount your partition.

Syntax
# lvrename Volu_Group_Name Old_log_vol_name new_log_vol_name
# lvrename VolGroup work office
Renamed "work" to "office" in volume group "VolGroup"
So now our Logical Volume is renamed.

In case your logical volume was mounted, you will have to remount to make the changes affect.
[root@test2 ~]# mount /dev/VolGroup/office /work/

Verify the changes
[root@test2 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-root 11G 3.3G 7.0G 33% /
tmpfs 495M 72K 495M 1% /dev/shm
/dev/sda1 194M 30M 155M 16% /boot
/dev/mapper/VolGroup-office 1008M 34M 924M 4% /work

Rename Volume Group

The existing name for my Volume Group is VolGroup as you see in blue color. Let us try to rename it.

# vgdisplay
--- Volume group ---
VG Name VolGroup
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 7
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 14.80 GiB
PE Size 4.00 MiB
Total PE 3789
Alloc PE / Size 3295 / 12.87 GiB
Free PE / Size 494 / 1.93 GiB
VG UUID iebYT7-Bukv-7FdP-AEMJ-noFk-INmV-7wX2PI
Syntax
# vgrename old_vol_group_name new_vol_group_name
# vgrename VolGroup NewGroup
Volume group "VolGroup" successfully renamed to "NewGroup"

Verify the changes
[root@test2 ~]# vgdisplay
--- Volume group ---
VG Name NewGroup
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 8
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 14.80 GiB
PE Size 4.00 MiB
Total PE 3789
Alloc PE / Size 3295 / 12.87 GiB
Free PE / Size 494 / 1.93 GiB
VG UUID iebYT7-Bukv-7FdP-AEMJ-noFk-INmV-7wX2PI

So everything worked as expected. Please let me know your success and failures.