lvm lvrename on Fedora Core 4

[Adam Gibson]

Robert L Cochran wrote:
> On my shiny new FC4 system, mount reports this device to be mounted on 
> root "/":
> 
> /dev/mapper/VolGroup00-LogVol00

Too late for this information to help you and you seem to already 
realize this but hopefully it will help someone in the future.

The installer probably should mention that you should try to rename the 
volume group to something uniq during installation to reduce the chances 
of volume group name conflicts in the future.  I forgot about this 
myself and had to rename one of them when I needed to access the old 
system.  Only the volume group needs to be renamed(logical volume names 
will not conflict).

I make sure to name my volume groups with the system name of the machine 
and then a unique number afterwards that I increment for any new volume 
groups that I ever create.  I also name the logical volumes with where I 
plan to mount them.  It makes recovery so much easier when you try and 
access the volume group under another installation.

Example:

My system name is pulsar.  I have 2 drives.  One is an older drive that 
has an old volume group called pulsar00.  The second drive is from a 
newer install of Fedora that has a volume group of pulsar01.

List of my partitions:
/dev/mapper/pulsar01-root   mounted as /
/dev/hda1                   mounted as /boot
/dev/mapper/pulsar01-home   mounted as /home
/dev/mapper/pulsar01-tmp    mounted as /tmp
/dev/mapper/pulsar01-var    mounted as /var
/dev/mapper/pulsar01-swap   mounted as swap
/dev/mapper/pulsar00-home   mounted as /oldhome

If I ever put one of those drives in a new Linux system I will know 
immediately what system I installed them on and where the partitions 
were mounted.