Re: [Xen-users] Using lvm for domUs

[Jason Dillon <jason@xxxxxxxxxxxx>]

On Apr 30, 2007, at 11:29 AM, john maclean wrote:
> Hey chaps. What's the best way to populate an lvm to get it ready  
> for xen?
> Steps I've taken so far;
> * create file based images using another machine.
> * create physical group and volume
> * create logical volume
>
> All checks out so far...
> acid:~# lvscan
>  ACTIVE            '/dev/xenLabs/etch_lvm' [4.00 GB] inherit
>  ACTIVE            '/dev/xenLabs/etch_swap' [128.00 MB] inherit
>  ACTIVE            '/dev/xenLabs/blag_lvm0' [2.00 GB] inherit
>  ACTIVE            '/dev/xenLabs/blag_swap0' [128.00 MB] inherit
>
> So far so good.
> * mount /dev/xenLabs/etch_lvm /mnt/testing
> * mkfs.ext3 /dev/xenLabs/etch_lvm
> * mkswap /dev/xenLabs/etch_swap
> * debootstrap /dev/xenLabs/etch_lvm
>
> OK, still with me? Config file;
> cat /etc/xen/etch_lvm
> #  -*- mode: python; -*-
> kernel = "/boot/vmlinuz-2.6.16-xen"
> memory = 128
> name = "etch_lvm"
> vif = [ '' ]
> disk = [ 'phy:xenLabs/etch_lvm,sda1,w', 'phy:xenLabs/ 
> etch_swap,sda2,w']
You might have better luck using the full path to the /dev files here...

    disk = [ 'phy:/dev/xenLabs/etch_lmv,xvda1,w', 'phy:/dev/xenLabs/ 
etch_swap,xvda2,w' ]
I switched sdaN to xvdaN, though it shouldn't matter which you use.

I am using LVM on dom0 to manage domU's disks with no problems.

--jason


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