OpenVZ Installation On CentOS 5
OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers.
In order to install OpenVZ, Follow the below steps,
First Step , we need to add the OpenVZ repository to yum
- cd /etc/yum.repos.d
- .wget http://download.openvz.org/openvz.repo
- rpm –import http://download.openvz.org/RPM-GPG-Key-OpenVZ
The repository contains a few different OpenVZ kernels
- yum search ovzkernel
This will shows you the available kernels and then install it.
- yum install ovzkernel
- vi /boot/grub/menu.lst
open /boot/grub/menu.lst; the first kernel stanza should now contain the new OpenVZ kernel. So to make sure add “OpenVZ” to it and make sure the default value is set to 0 so that the first kernel (the OpenVZ kernel) is booted automatically instead of the default CentOS kernel.
It looks like,
title CentOS OpenVZ (2.6.18-53.1.19.el5.028stab053.14)
root (hd0,0)
kernel /vmlinuz-2.6.18-53.1.19.el5.028stab053.14 ro root=/dev/VolGroup00/LogVol00
initrd /initrd-2.6.18-53.1.19.el5.028stab053.14.img
- yum install vzctl vzquota
This will install some OpenVZ user tools
- Open /etc/vz/vz.conf and set NEIGHBOUR_DEVS to all
- SELinux needs to be disabled if you want to use OpenVZ. Open /etc/sysconfig/selinux and set the value of SELINUX to disabled:
vi /etc/sysconfig/selinux
- reboot the server
# reboot
- Run uname -r
OpenVZ kernel should show up:
[root@server1 ~]# uname -r
2.6.18-53.1.19.el5.028stab053.14
Openvz installation is completed.
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