How to mount an LVM volume?

Question: I’m trying to mount an LVM2 volume in Linux, but all the instructions I see online say to mount the Volume Group, such as:

mkdir -p /mnt/VolGroup00/LogVol00

but I don’t know how to figure out the name of it. I see the drive in Palimpsest, and that’s all the info I know.

Answer: Here are the steps I used to accessing a LVM from Fedora 17, it should work with most forms of Linux.

Boot Fedora 17.

Make sure lvm2 is installed:

$ sudo yum install lvm2

Load the necessary module(s) as root:

$ sudo modprobe dm-mod

Scan your system for LVM volumes and identify in the output the volume group name that has your Fedora volume (mine proved to be VolGroup00):

$ sudo vgscan

Activate the volume:

$ sudo vgchange -ay VolGroup00

Find the logical volume that has your Fedora root filesystem (mine provedto be LogVol00):

$ sudo lvs

Create a mount point for that volume:

$ sudo mkdir /mnt/fcroot

Mount it:

$ sudo mount /dev/VolGroup00/LogVol00 /mnt/fcroot -o ro,user

You’re done, navigate to /mnt/fcroot and copy the files and paste somewhere else.