How to make Xen and KVM templates

vzxen · 09-29-2010, 10:05 AM

I wanted to make a Xen Paravirtualization OS template.
How to make this ?
Also how to make KVM templates ?

I am using LVM for the DomUs in both KVM and Xen.
How does Stacklet.com make it ?

dyasny · 09-30-2010, 06:03 AM

a base OS image in r/o mode and a bunch of qcow2 snapshots from it attached to the VMs. Or you can clone the base image for every VM

vzxen · 10-01-2010, 01:30 AM

Thanks for the suggestion, but can you point me to some guides.
Actually how to go about this ?

vzxen · 10-01-2010, 11:57 PM

Does no one know how to make Xen and KVM Templates ?
I found this tutorial :
http://debaan.blogspot.com/2007/04/c...plate-for.html
Its very old. Is it right though ?

dyasny · 10-03-2010, 06:47 AM

I have never seen any guides, just read the qemu-img manpage -- all the information is there

vzxen · 10-04-2010, 03:11 AM

Quote:

Originally Posted by dyasny

I have never seen any guides, just read the qemu-img manpage -- all the information is there

qemu-img is for file images right ?
How is that related to making KVM / XEN OS templates

zaitsevs · 11-09-2010, 08:25 PM

Quote:

Originally Posted by vzxen

qemu-img is for file images right ?
How is that related to making KVM / XEN OS templates

It's directly related to making KVM templates. They're suggesting if you learn how to use the imaging tools(qemu-img), you will be able to create 'images' or existing templates of your running machines.

vzxen · 11-09-2010, 11:16 PM

Ok.
I have managed to make 1GB files and it works.
The problem is I am unable to resize some of the templates when I copy them to the new LVM of a new VPS.
If I copy the 1GB templates I made to a 10GB LVM I obviously have to resize the Partitions first and then the FileSystem.
This causes the MBR to corrupt in certain OS Templates like openSUSE.

Can anyone help me on that ???