Mount LVM from liveCD

Yeah after installation of Windows seven – my Grub-Bootloader was removed and I get only the Windows bootmager.

This article describe hot to mount root “/” which was created on LVM from a live CD and install GRUB Boot-Loader.

Step 1: Get a live CD in my case it was Ubuntu 10.10 Desktop edition.

Step 2: Boot from live CD and get your network to work, you will need it to install some packages.
Step 3: Install LVM to mound root

1

apt-get install lvm2

Step 4:
Run pvscan to scan all disks for physical volume:

1

pvscan

Step 5:
Run vgscan to scan disks for volume groups:

1

vgscan

Step 6: Activate volume groups:

1

vgchange -a y

Step 7: Run lvscan to scan all disks for logical volume.

Step 8: Mount your root or another devices:

1

mount /dev/VolGroup0/root /mnt/

For GRUB installation refer to this article