centos# cd /etc/yum.repos.d
centos# wget http://download.openvz.org/openvz.repo
centos# rpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ
centos# yum -y install ovzkernel-PAE
.
.
.
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : ovzkernel-PAE                                     [1/1]
WARNING: No module dm-mem-cache found for kernel 2.6.18-92.1.18.el5.028stab060.8PAE, continuing anyway
WARNING: No module dm-region_hash found for kernel 2.6.18-92.1.18.el5.028stab060.8PAE, continuing anyway
WARNING: No module dm-message found for kernel 2.6.18-92.1.18.el5.028stab060.8PAE, continuing anyway
WARNING: No module dm-raid45 found for kernel 2.6.18-92.1.18.el5.028stab060.8PAE, continuing anyway

Installed: ovzkernel-PAE.i686 0:2.6.18-92.1.18.el5.028stab060.8
Complete!

centos# uname -a 

Linux vs1.local 2.6.18-128.1.6.el5 #1 SMP Wed Apr 1 09:10:25 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

centos#