XEN Upgrade

The Xen® hypervisor, the powerful open source industry standard for virtualization, offers a powerful, efficient, and secure feature set for virtualization of x86, x86_64, IA64, ARM, and other CPU architectures. It supports a wide range of guest operating systems including Windows®, Linux®, Solaris®, and various versions of the BSD operating systems. To run Windows you will need to have enable in your motherboard the Intel-V virtualization option. In this article we will explain briefly how to upgrade your XEN kernel to latest one from repositories. The instructions are valid only for Redhat Enterprise Server and CentOS.

Browse to http://www.gitco.de/repo/ and grab the latest repo for your arch. (in this case x86_64)# cd /etc/yum.repos.d/
# wget http://www.gitco.de/repo/GITCO-XEN3.4.3_x86_64.repo

Remove previous installations of XEN before re-installing XEN 3.4.1# yum groupremove Virtualization
# yum groupinstall Virtualization

Edit grub.conf to reflect the correct default Kernel

Grub format example
title CentOS (2.6.18-194.11.3.el5xen)
root (hd0,0)
kernel /boot/xen.gz-3.4.3
module /boot/vmlinuz-2.6.18-194.11.3.el5xen ro root=/dev/md0
module /boot/initrd-2.6.18-194.11.3.el5xen.img

Posted on: 24/02/2011

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