How to install XEN 3.4.1 on CentOS 5.4-greendays-ChinaUnix博客

How to install XEN 3.4.1 on CentOS 5.4

On October 23, 2009, in CentOS 5.4, by How2CentOS

What is Xen?

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.

Preliminary Note:

I’m using a CentOS 5.4 x86_64 base installation in this tutorial

* server1.example.co.za (IP 10.0.0.100): CentOS 5.4 x86_64 Base installation

Install the Gitco repository

Browse to and grab the latest repo for your arch. (in this case x86_64)

# cd /etc/yum.repos.d/
# wget GITCO-XEN3.4.1_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

# vi /etc/grub.conf

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
#          initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-128.7.1.el5xen)
        root (hd0,0)
        kernel /xen.gz-3.4.1
        module /vmlinuz-2.6.18-128.7.1.el5xen ro root=/dev/VolGroup00/LogVol00
        module /initrd-2.6.18-128.7.1.el5xen.img
title CentOS (2.6.18-128.1.16.el5xen)
        root (hd0,0)
        kernel /xen.gz-3.4.1
        module /vmlinuz-2.6.18-128.1.16.el5xen ro root=/dev/VolGroup00/LogVol00
        module /initrd-2.6.18-128.1.16.el5xen.img
title CentOS (2.6.18-128.el5xen)
        root (hd0,0)
        kernel /xen.gz-3.4.1
        module /vmlinuz-2.6.18-128.el5xen ro root=/dev/VolGroup00/LogVol00
        module /initrd-2.6.18-128.el5xen.img
title CentOS (2.6.18-164.el5xen)
        root (hd0,0)
        kernel /xen.gz-3.4.1
        module /vmlinuz-2.6.18-164.el5xen ro root=/dev/VolGroup00/LogVol00
        module /initrd-2.6.18-164.el5xen.img

Reboot the machine for new XEN kernel to take effect

# reboot

After the reboot check the Kernel to reflect the change

# uname -r
2.6.18-128.7.1.el5xen