[one-users] Installation From ISO images

[Ruben S. Montero]

Hi,

The procedure should be as follows, create a template that contains :

1- Define your main disk as usual, and tell OpenNebula to keep the changes
DISK = [
  source   = "/srv/cloud/images/master/fedora_disk.img",
  target   = "hda",
  save     = "yes"
  clone    = "no" ]
(this assumes that you have a plain file for fedora_disk.img (e.g.
with a dd). You can also use separate partitions for swap and the OS
installation...

2- Define an additional DISK for the ISO image with the installation CD
DISK = [
  source   = "/srv/cloud/images/isos/fedora_12.iso",
  type     = "cdrom",
  target   = "hdb",
  clone    = "no" ]

3.- Add a VNC console so you can interact with the installer. And tell
to listen in a cluster node hostname, by adding to the template:
GRAPHICS = [ type = "vnc", listen  = "a_cluster_node_hostname", port = "5902"]

4.- Tell OpenNebula to place the VM in that clusternode, by adding to
the template:
REQUIREMENTS="HOSTNAME=a_cluster_node_hostname"

Once you have the template ready....

1.- Create the VM with onevm create
2.- use you favorite VNC client to install the OS (you should be able
to see the console at c<cluster_node_name>:5902) NOTE: You can always
use 127.0.0.1 for the VNC server but then you have to start the VNC
client from the cluster node, but we usually do not have an X server
there...
3.- When you are done shutdown the VM. onevm shutdown
4.- The new installed image would be in
$ONE_LOCATION/var/<VM_ID>/disk.0 Copy it to a safe location so you can
use it later as a master image.

Hope it helps

Ruben
On Thu, Jan 21, 2010 at 5:35 PM, Viji V Nair <viji at fedoraproject.org> wrote:
> Hi,
>
> I have a two node cluser with OCFS2 running on OpenNebula 1.4 and Fedora 12
> x86_64. Is it possible to start installation of vms directly from an iso
> image other than running virt-install to create the image and then deploy
> the same.
>
> Any help of the same greatly appreciated.
>
> Viji
>
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>



-- 
Dr. Ruben Santiago Montero
Associate Professor, Complutense University of Madrid

URL:    http://dsa-research.org/doku.php?id=people:ruben
Weblog: http://blog.dsa-research.org/?author=7