[CentOS-virt] using an lvm for kvm vm

Sun Feb 13 10:47:40 UTC 2011
Manuel Wolfshant <wolfy at nobugconsulting.ro>

On 02/13/2011 10:27 AM, Nataraj wrote:
> Is there a simple way to directly install a vm on an lvm (or proably
> seperate LVM's for root and swap)?   For example something like:
> lvcreate -L 10G -n testvm_root vg_myvg
> lvcreate -L 1G -n testvm_swap
> Then somehow setup the VM to be able to directly install and boot the vm
> from these LV's.  How do I do this?
> Could you then pause the virtual machine and safely take an LVM
> snapshot, continue the VM and then mount the snapshot on the host and do
> a backup?
> This would be for CentOS/Redhat 6.

I am not sure that I have correctly understood your question, but I have 
the following setup functional in Centos 5 for several years
= dedicated logical volumes,similar to your example
= a xen configuration as below
     disk = [ 
( mind hda and hdb which are LVs created during the first step)