http://www.wenzizone.com/2011/07/07/centos_x64_yum_da_jian_xen.html [yum xen]
配置epel就不说了,ruiy哥的文档有;
yum groupinfo Virtualization
# yum groupinstall 'Virtualization'
来进行安装了。经过几分钟的等待，相关的包就都装好了，接下来需要改grub的配置
