Difference between revisions of "HowTo Change The LVM Volume Group Name That Includes The Root Partition"

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(State Before The LVM Volume Group Name Change)
(Steps To Change The LVM Volume Group Name)
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= Steps To Change The LVM Volume Group Name =
 
= Steps To Change The LVM Volume Group Name =
The '''[http://man.cx/vgrename(8) vgrename]''' utility will be used to change LVM Volume Name.
+
'''Step 1:''' The '''[http://man.cx/vgrename(8) vgrename]''' utility will be used to change LVM Volume Name.

Revision as of 14:51, 1 January 2014

Overview

This page describes the steps needed to change an LVM (Logical Volume Manager) Volume Group name which includes the the Root partition ("/"). The problem is that the Root partition LVM Device Mapper is referenced in different configuration files and embedded in the Kernel initramfs.

We will demonstrate the LVM Volume Group name change from "nst_localhost" to "nst20".

State Before The LVM Volume Group Name Change

The Fedora System Storage Manager utility: ssm is used to display the current storage layout on the example system.

[root@localhost ~]# ssm list
-------------------------------------------------------------------
Device        Free      Used      Total  Pool           Mount point  
-------------------------------------------------------------------
/dev/sda                       30.00 GB                 PARTITIONED  
/dev/sda1                     500.00 MB                 /boot        
/dev/sda2  0.00 KB  29.51 GB   29.51 GB  nst_localhost               
-------------------------------------------------------------------
---------------------------------------------------------
Pool           Type  Devices     Free      Used     Total  
---------------------------------------------------------
nst_localhost  lvm   1        0.00 KB  29.51 GB  29.51 GB  
---------------------------------------------------------
----------------------------------------------------------------------------------------------------
Volume                   Pool           Volume size  FS      FS size       Free  Type    Mount point  
----------------------------------------------------------------------------------------------------
/dev/nst_localhost/root  nst_localhost     27.48 GB  ext4   27.48 GB   19.18 GB  linear  /            
/dev/nst_localhost/swap  nst_localhost      2.03 GB                              linear               
/dev/sda1                                 500.00 MB  ext4  500.00 MB  364.40 MB  part    /boot        
----------------------------------------------------------------------------------------------------

Steps To Change The LVM Volume Group Name

Step 1: The vgrename utility will be used to change LVM Volume Name.