CentOS 5 Xen images – part 1: creating a base domU image with yum
Friday, October 26th, 2007I recently needed to configure Xen guests on a CentOS server. I didn’t want to use CentOS/Redhat’s tool for several reasons : I don’t like the fact that it creates a “disk” with a whole partition table within the partition where you install it. Installing the guest directly on a LVM logical volume seems better to me (I may not be right, I’m still somewhat new to Xen!). Also, it was very instructive to do all the steps by myself rather than using a tool that does everything.
However, I had several problems while trying to install my first guest system, so it took me quite some time to find the right way to do it. I found a lot of documentation on the web, but nothing really described what I really wanted to do. So here we are, I decided to write a post describing what to do exactly to make a custom guest image and install it as a Xen domU.
In this first part, I will explain how to make an OS image of CentOS 5 that will be suited for Xen.
