CentOS6.x安装Xen4.2虚拟化实践

虽然RHEL6默认不支持xen虚拟化，但是互联网有大量的第三方源以及开源组织提供了xen4 on RHEL/CentOS6 xen的安装，继续开源xen应用与发展，本文采用Xen Made Easy项目网站提供的第三方安装源，方便快捷。

本文只是实践安装过程，注明：安装环境适用采用物理机进行安装，VMware workstation环境安装不成功。

官方安装文档：http://xen.crc.id.au/support/guides/install/

一、环境说明

1. 本文采用CentOS6.5 x64,安装开发包及开发工具。

CentOS6.x安装Xen4.2虚拟化实践

2. 关闭selinux

CentOS6.x安装Xen4.2虚拟化实践

XenServer如何添加本地存储 http://www.linuxidc.com/Linux/2013-06/86433.htm

开启并配置Citrix XenServer的SNMP服务 http://www.linuxidc.com/Linux/2013-01/78487.htm

CentOS/Linux安装 XS-Tools (XenServer) http://www.linuxidc.com/Linux/2012-10/71607.htm

XenServer教程：XenCneter实现热迁移步骤 http://www.linuxidc.com/Linux/2012-10/71606.htm

二、开始安装

1. 安装bridge-utils package

[root@xen ~]# yum install bridge-utils
Loaded plugins: fastestmirror, refresh-packagekit, security
Determining fastest mirrors
epel/metalink | 5.4 kB 00:00
* base: centos.ustc.edu.cn
* epel: mirror01.idc.hinet.net
* extras: centos.ustc.edu.cn
* updates: centos.ustc.edu.cn
base | 3.7 kB 00:00
epel | 4.4 kB 00:00
epel/primary_db | 6.2 MB 01:07
extras | 3.4 kB 00:00
updates | 3.4 kB 00:00
updates/primary_db | 3.7 MB 00:09
Setting up Install Process
Package bridge-utils-1.2-10.el6.x86_64 already installed and latest version
Nothing to do

2. 安装crc.id.au安装源

[root@xen ~]# yum install http://au1.mirror.crc.id.au/repo/kernel-xen-release-6-5.noarch.rpm
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: centos.ustc.edu.cn
* epel: mirror01.idc.hinet.net
* extras: centos.ustc.edu.cn
* updates: centos.ustc.edu.cn
Setting up Install Process
kernel-xen-release-6-5.noarch.rpm | 10 kB 00:00
Examining /var/tmp/yum-root-myODPk/kernel-xen-release-6-5.noarch.rpm: kernel-xen-release-6-5.noarch
Marking /var/tmp/yum-root-myODPk/kernel-xen-release-6-5.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package kernel-xen-release.noarch 0:6-5 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

Transaction Summary
================================================================================================================================================================================
Install 1 Package(s)

Total size: 3.5 k
Installed size: 3.5 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : kernel-xen-release-6-5.noarch 1/1
Verifying : kernel-xen-release-6-5.noarch 1/1

Installed:
kernel-xen-release.noarch 0:6-5

Complete!
[root@xen ~]#

3. 安装xen虚拟化

[root@xen ~]# yum install xen
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: centos.ustc.edu.cn
* epel: mirror01.idc.hinet.net
* extras: centos.ustc.edu.cn
* kernel-xen: au1.mirror.crc.id.au
* updates: centos.ustc.edu.cn
kernel-xen | 2.9 kB 00:00
kernel-xen/primary_db | 66 kB 00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package xen.x86_64 0:4.2.4-4.el6 will be installed
base/filelists_db | 5.9 MB 00:14
epel/filelists_db | 8.7 MB 00:20
extras/filelists_db | 11 kB 00:00
kernel-xen/filelists_db | 821 kB 00:07
updates/filelists_db | 2.2 MB 00:03
--> Processing Dependency: xen-runtime = 4.2.4-4.el6 for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: xen-licenses = 4.2.4-4.el6 for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: xen-libs = 4.2.4-4.el6 for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: xen-hypervisor = 4.2.4-4.el6 for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: xen-doc = 4.2.4-4.el6 for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: yajl for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: libxenstore.so.3.0()(64bit) for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: libxenguest.so.4.2()(64bit) for package: xen-4.2.4-4.el6.x86_64
--> Processing Dependency: libxenctrl.so.4.2()(64bit) for package: xen-4.2.4-4.el6.x86_64
--> Running transaction check
---> Package xen-doc.x86_64 0:4.2.4-4.el6 will be installed
---> Package xen-hypervisor.x86_64 0:4.2.4-4.el6 will be installed
--> Processing Dependency: qemu-img for package: xen-hypervisor-4.2.4-4.el6.x86_64
---> Package xen-libs.x86_64 0:4.2.4-4.el6 will be installed
---> Package xen-licenses.x86_64 0:4.2.4-4.el6 will be installed
---> Package xen-runtime.x86_64 0:4.2.4-4.el6 will be installed
---> Package yajl.x86_64 0:1.0.7-3.el6 will be installed
--> Running transaction check
---> Package qemu-img.x86_64 2:0.12.1.2-2.415.el6_5.10 will be installed
--> Processing Dependency: libusbredirparser.so.1()(64bit) for package: 2:qemu-img-0.12.1.2-2.415.el6_5.10.x86_64
--> Processing Dependency: libgfxdr.so.0()(64bit) for package: 2:qemu-img-0.12.1.2-2.415.el6_5.10.x86_64
--> Processing Dependency: libgfrpc.so.0()(64bit) for package: 2:qemu-img-0.12.1.2-2.415.el6_5.10.x86_64
--> Processing Dependency: libgfapi.so.0()(64bit) for package: 2:qemu-img-0.12.1.2-2.415.el6_5.10.x86_64
--> Running transaction check
---> Package glusterfs-api.x86_64 0:3.4.0.57rhs-1.el6_5 will be installed
---> Package glusterfs-libs.x86_64 0:3.4.0.57rhs-1.el6_5 will be installed
---> Package usbredir.x86_64 0:0.5.1-1.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

Total download size: 13 M
Installed size: 33 M
Is this ok [y/N]: y
Downloading Packages:
(1/11): glusterfs-api-3.4.0.57rhs-1.el6_5.x86_64.rpm | 55 kB 00:00
(2/11): glusterfs-libs-3.4.0.57rhs-1.el6_5.x86_64.rpm | 240 kB 00:01
(3/11): qemu-img-0.12.1.2-2.415.el6_5.10.x86_64.rpm | 596 kB 00:03
(4/11): usbredir-0.5.1-1.el6.x86_64.rpm | 40 kB 00:00
(5/11): xen-4.2.4-4.el6.x86_64.rpm | 1.0 MB 00:06
(6/11): xen-doc-4.2.4-4.el6.x86_64.rpm | 989 kB 00:05
(7/11): xen-hypervisor-4.2.4-4.el6.x86_64.rpm | 4.4 MB 00:17
(8/11): xen-libs-4.2.4-4.el6.x86_64.rpm | 352 kB 00:02
(9/11): xen-licenses-4.2.4-4.el6.x86_64.rpm | 52 kB 00:01
(10/11): xen-runtime-4.2.4-4.el6.x86_64.rpm | 5.8 MB 00:50
(11/11): yajl-1.0.7-3.el6.x86_64.rpm | 27 kB 00:00
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 122 kB/s | 13 MB 01:52
warning: rpmts_HdrFromFdno: Header V4 RSA/SHA1 Signature, key ID 5838f88d: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-kernel-xen
Importing GPG key 0x5838F88D:
Userid : Steven Haigh <[email protected]>
Package: kernel-xen-release-6-5.noarch (@/kernel-xen-release-6-5.noarch)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-kernel-xen
Is this ok [y/N]: y
Retrieving key from http://www.crc.id.au/repo/RPM-GPG-KEY-kernel-xen
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : yajl-1.0.7-3.el6.x86_64 1/11
Installing : glusterfs-libs-3.4.0.57rhs-1.el6_5.x86_64 2/11
Installing : glusterfs-api-3.4.0.57rhs-1.el6_5.x86_64 3/11
Installing : usbredir-0.5.1-1.el6.x86_64 4/11
Installing : 2:qemu-img-0.12.1.2-2.415.el6_5.10.x86_64 5/11
Installing : xen-hypervisor-4.2.4-4.el6.x86_64 6/11
Installing : xen-doc-4.2.4-4.el6.x86_64 7/11
Installing : xen-4.2.4-4.el6.x86_64 8/11
在 xen-watchdog 服务中读取信息时出错：没有那个文件或目录
Installing : xen-licenses-4.2.4-4.el6.x86_64 9/11
Installing : xen-libs-4.2.4-4.el6.x86_64 10/11
Installing : xen-runtime-4.2.4-4.el6.x86_64 11/11
Verifying : xen-licenses-4.2.4-4.el6.x86_64 1/11
Verifying : 2:qemu-img-0.12.1.2-2.415.el6_5.10.x86_64 2/11
Verifying : xen-4.2.4-4.el6.x86_64 3/11
Verifying : xen-hypervisor-4.2.4-4.el6.x86_64 4/11
Verifying : glusterfs-libs-3.4.0.57rhs-1.el6_5.x86_64 5/11
Verifying : yajl-1.0.7-3.el6.x86_64 6/11
Verifying : glusterfs-api-3.4.0.57rhs-1.el6_5.x86_64 7/11
Verifying : xen-runtime-4.2.4-4.el6.x86_64 8/11
Verifying : xen-doc-4.2.4-4.el6.x86_64 9/11
Verifying : xen-libs-4.2.4-4.el6.x86_64 10/11
Verifying : usbredir-0.5.1-1.el6.x86_64 11/11

Installed:
xen.x86_64 0:4.2.4-4.el6

Dependency Installed:
glusterfs-api.x86_64 0:3.4.0.57rhs-1.el6_5 glusterfs-libs.x86_64 0:3.4.0.57rhs-1.el6_5 qemu-img.x86_64 2:0.12.1.2-2.415.el6_5.10 usbredir.x86_64 0:0.5.1-1.el6
xen-doc.x86_64 0:4.2.4-4.el6 xen-hypervisor.x86_64 0:4.2.4-4.el6 xen-libs.x86_64 0:4.2.4-4.el6 xen-licenses.x86_64 0:4.2.4-4.el6
xen-runtime.x86_64 0:4.2.4-4.el6 yajl.x86_64 0:1.0.7-3.el6

Complete!
[root@xen ~]#

查看安装

[root@xen ~]# ls -l /boot/xen.gz
lrwxrwxrwx 1 root root 12 8月 5 10:13 /boot/xen.gz -> xen-4.2.4.gz
[root@xen ~]#
[root@xen ~]#

4. 安装xen内核

说明：安装xen内核kernel-xen-firmware-3.14.9-1.el6xen.x86_64时会与原有安装的microcode_ctl包、xorg-x11-drv-ati-firmware包冲突，需要删除以上两个包，再进行安装。

[root@xen ~]#
[root@xen ~]# rpm -e microcode_ctl-1.17-17.el6.x86_64
[root@xen ~]# rpm -e xorg-x11-drv-ati-firmware-7.1.0-3.el6.noarch

[root@xen ~]# yum install kernel-xen
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirror01.idc.hinet.net
* kernel-xen: uk1.mirror.crc.id.au
* updates: mirror01.idc.hinet.net
base | 3.7 kB 00:00
extras | 3.4 kB 00:00
kernel-xen | 2.9 kB 00:00
updates | 3.4 kB 00:00
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package kernel-xen.x86_64 0:3.14.9-1.el6xen will be installed
--> Processing Dependency: kernel-xen-firmware for package: kernel-xen-3.14.9-1.el6xen.x86_64
--> Running transaction check
---> Package aic94xx-firmware.noarch 0:30-2.el6 will be obsoleted
---> Package atmel-firmware.noarch 0:1.3-7.el6 will be obsoleted
---> Package bfa-firmware.noarch 0:3.2.21.1-2.el6 will be obsoleted
---> Package ipw2100-firmware.noarch 0:1.3-11.el6 will be obsoleted
---> Package ipw2200-firmware.noarch 0:3.1-4.el6 will be obsoleted
---> Package ivtv-firmware.noarch 2:20080701-20.2 will be obsoleted
---> Package iwl100-firmware.noarch 0:39.31.5.1-1.el6 will be obsoleted
---> Package iwl1000-firmware.noarch 1:39.31.5.1-1.el6 will be obsoleted
---> Package iwl3945-firmware.noarch 0:15.32.2.9-4.el6 will be obsoleted
---> Package iwl4965-firmware.noarch 0:228.61.2.24-2.1.el6 will be obsoleted
---> Package iwl5000-firmware.noarch 0:8.83.5.1_1-1.el6_1.1 will be obsoleted
---> Package iwl5150-firmware.noarch 0:8.24.2.2-1.el6 will be obsoleted
---> Package iwl6000-firmware.noarch 0:9.221.4.1-1.el6 will be obsoleted
---> Package iwl6000g2a-firmware.noarch 0:17.168.5.3-1.el6 will be obsoleted
---> Package iwl6050-firmware.noarch 0:41.28.5.1-2.el6 will be obsoleted
---> Package kernel-firmware.noarch 0:2.6.32-431.el6 will be obsoleted
---> Package kernel-xen-firmware.x86_64 0:3.14.9-1.el6xen will be obsoleting
---> Package libertas-usb8388-firmware.noarch 2:5.110.22.p23-3.1.el6 will be obsoleted
---> Package ql2100-firmware.noarch 0:1.19.38-3.1.el6 will be obsoleted
---> Package ql2200-firmware.noarch 0:2.02.08-3.1.el6 will be obsoleted
---> Package ql23xx-firmware.noarch 0:3.03.27-3.1.el6 will be obsoleted
---> Package ql2400-firmware.noarch 0:7.00.01-1.el6 will be obsoleted
---> Package ql2500-firmware.noarch 0:7.00.01-1.el6 will be obsoleted
---> Package rt61pci-firmware.noarch 0:1.2-7.el6 will be obsoleted
---> Package rt73usb-firmware.noarch 0:1.8-7.el6 will be obsoleted
---> Package zd1211-firmware.noarch 0:1.4-4.el6 will be obsoleted
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================================================================================================================
Package Arch Version Repository Size
================================================================================================================================================================================
Installing:
kernel-xen x86_64 3.14.9-1.el6xen kernel-xen 25 M
kernel-xen-firmware x86_64 3.14.9-1.el6xen kernel-xen 29 M
replacing aic94xx-firmware.noarch 30-2.el6
replacing atmel-firmware.noarch 1.3-7.el6
replacing bfa-firmware.noarch 3.2.21.1-2.el6
replacing ipw2100-firmware.noarch 1.3-11.el6
replacing ipw2200-firmware.noarch 3.1-4.el6
replacing ivtv-firmware.noarch 2:20080701-20.2
replacing iwl100-firmware.noarch 39.31.5.1-1.el6
replacing iwl1000-firmware.noarch 1:39.31.5.1-1.el6
replacing iwl3945-firmware.noarch 15.32.2.9-4.el6
replacing iwl4965-firmware.noarch 228.61.2.24-2.1.el6
replacing iwl5000-firmware.noarch 8.83.5.1_1-1.el6_1.1
replacing iwl5150-firmware.noarch 8.24.2.2-1.el6
replacing iwl6000-firmware.noarch 9.221.4.1-1.el6
replacing iwl6000g2a-firmware.noarch 17.168.5.3-1.el6
replacing iwl6050-firmware.noarch 41.28.5.1-2.el6
replacing kernel-firmware.noarch 2.6.32-431.el6
replacing libertas-usb8388-firmware.noarch 2:5.110.22.p23-3.1.el6
replacing ql2100-firmware.noarch 1.19.38-3.1.el6
replacing ql2200-firmware.noarch 2.02.08-3.1.el6
replacing ql23xx-firmware.noarch 3.03.27-3.1.el6
replacing ql2400-firmware.noarch 7.00.01-1.el6
replacing ql2500-firmware.noarch 7.00.01-1.el6
replacing rt61pci-firmware.noarch 1.2-7.el6
replacing rt73usb-firmware.noarch 1.8-7.el6
replacing zd1211-firmware.noarch 1.4-4.el6

Total size: 54 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Warning: RPMDB altered outside of yum.
Installing : kernel-xen-firmware-3.14.9-1.el6xen.x86_64 1/27
Installing : kernel-xen-3.14.9-1.el6xen.x86_64 2/27
Added kernel-xen to 'installonlypkgs' line in /etc/yum.conf!
No existing Xen install found. Using defaults.
Erasing : zd1211-firmware-1.4-4.el6.noarch 3/27
Erasing : rt73usb-firmware-1.8-7.el6.noarch 4/27
Erasing : rt61pci-firmware-1.2-7.el6.noarch 5/27
Erasing : ql2500-firmware-7.00.01-1.el6.noarch 6/27
Erasing : ql2400-firmware-7.00.01-1.el6.noarch 7/27
Erasing : ql23xx-firmware-3.03.27-3.1.el6.noarch 8/27
Erasing : ql2200-firmware-2.02.08-3.1.el6.noarch 9/27
Erasing : ql2100-firmware-1.19.38-3.1.el6.noarch 10/27
Erasing : 2:libertas-usb8388-firmware-5.110.22.p23-3.1.el6.noarch 11/27
Erasing : kernel-firmware-2.6.32-431.el6.noarch 12/27
Erasing : iwl6050-firmware-41.28.5.1-2.el6.noarch 13/27
Erasing : iwl6000g2a-firmware-17.168.5.3-1.el6.noarch 14/27
Erasing : iwl6000-firmware-9.221.4.1-1.el6.noarch 15/27
Erasing : iwl5150-firmware-8.24.2.2-1.el6.noarch 16/27
Erasing : iwl5000-firmware-8.83.5.1_1-1.el6_1.1.noarch 17/27
Erasing : iwl4965-firmware-228.61.2.24-2.1.el6.noarch 18/27
Erasing : iwl3945-firmware-15.32.2.9-4.el6.noarch 19/27
Erasing : 1:iwl1000-firmware-39.31.5.1-1.el6.noarch 20/27
Erasing : iwl100-firmware-39.31.5.1-1.el6.noarch 21/27
Erasing : 2:ivtv-firmware-20080701-20.2.noarch 22/27
Erasing : ipw2200-firmware-3.1-4.el6.noarch 23/27
Erasing : ipw2100-firmware-1.3-11.el6.noarch 24/27
Erasing : bfa-firmware-3.2.21.1-2.el6.noarch 25/27
Erasing : atmel-firmware-1.3-7.el6.noarch 26/27
Erasing : aic94xx-firmware-30-2.el6.noarch 27/27
Verifying : kernel-xen-firmware-3.14.9-1.el6xen.x86_64 1/27
Verifying : kernel-xen-3.14.9-1.el6xen.x86_64 2/27
Verifying : zd1211-firmware-1.4-4.el6.noarch 3/27
Verifying : kernel-firmware-2.6.32-431.el6.noarch 4/27
Verifying : iwl6000g2a-firmware-17.168.5.3-1.el6.noarch 5/27
Verifying : ql2100-firmware-1.19.38-3.1.el6.noarch 6/27
Verifying : ipw2200-firmware-3.1-4.el6.noarch 7/27
Verifying : ql2500-firmware-7.00.01-1.el6.noarch 8/27
Verifying : rt73usb-firmware-1.8-7.el6.noarch 9/27
Verifying : iwl3945-firmware-15.32.2.9-4.el6.noarch 10/27
Verifying : ql2400-firmware-7.00.01-1.el6.noarch 11/27
Verifying : 2:libertas-usb8388-firmware-5.110.22.p23-3.1.el6.noarch 12/27
Verifying : ipw2100-firmware-1.3-11.el6.noarch 13/27
Verifying : atmel-firmware-1.3-7.el6.noarch 14/27
Verifying : bfa-firmware-3.2.21.1-2.el6.noarch 15/27
Verifying : 2:ivtv-firmware-20080701-20.2.noarch 16/27
Verifying : iwl4965-firmware-228.61.2.24-2.1.el6.noarch 17/27
Verifying : aic94xx-firmware-30-2.el6.noarch 18/27
Verifying : 1:iwl1000-firmware-39.31.5.1-1.el6.noarch 19/27
Verifying : iwl6000-firmware-9.221.4.1-1.el6.noarch 20/27
Verifying : iwl6050-firmware-41.28.5.1-2.el6.noarch 21/27
Verifying : ql23xx-firmware-3.03.27-3.1.el6.noarch 22/27
Verifying : iwl100-firmware-39.31.5.1-1.el6.noarch 23/27
Verifying : iwl5000-firmware-8.83.5.1_1-1.el6_1.1.noarch 24/27
Verifying : ql2200-firmware-2.02.08-3.1.el6.noarch 25/27
Verifying : iwl5150-firmware-8.24.2.2-1.el6.noarch 26/27
Verifying : rt61pci-firmware-1.2-7.el6.noarch 27/27

Installed:
kernel-xen.x86_64 0:3.14.9-1.el6xen kernel-xen-firmware.x86_64 0:3.14.9-1.el6xen

Replaced:
aic94xx-firmware.noarch 0:30-2.el6 atmel-firmware.noarch 0:1.3-7.el6 bfa-firmware.noarch 0:3.2.21.1-2.el6
ipw2100-firmware.noarch 0:1.3-11.el6 ipw2200-firmware.noarch 0:3.1-4.el6 ivtv-firmware.noarch 2:20080701-20.2
iwl100-firmware.noarch 0:39.31.5.1-1.el6 iwl1000-firmware.noarch 1:39.31.5.1-1.el6 iwl3945-firmware.noarch 0:15.32.2.9-4.el6
iwl4965-firmware.noarch 0:228.61.2.24-2.1.el6 iwl5000-firmware.noarch 0:8.83.5.1_1-1.el6_1.1 iwl5150-firmware.noarch 0:8.24.2.2-1.el6
iwl6000-firmware.noarch 0:9.221.4.1-1.el6 iwl6000g2a-firmware.noarch 0:17.168.5.3-1.el6 iwl6050-firmware.noarch 0:41.28.5.1-2.el6
kernel-firmware.noarch 0:2.6.32-431.el6 libertas-usb8388-firmware.noarch 2:5.110.22.p23-3.1.el6 ql2100-firmware.noarch 0:1.19.38-3.1.el6
ql2200-firmware.noarch 0:2.02.08-3.1.el6 ql23xx-firmware.noarch 0:3.03.27-3.1.el6 ql2400-firmware.noarch 0:7.00.01-1.el6
ql2500-firmware.noarch 0:7.00.01-1.el6 rt61pci-firmware.noarch 0:1.2-7.el6 rt73usb-firmware.noarch 0:1.8-7.el6
zd1211-firmware.noarch 0:1.4-4.el6

Complete!
[root@xen ~]#

5. 查看启动内核并重启系统

CentOS6.x安装Xen4.2虚拟化实践

重启系统后发现xend服务器没有配置开机自启动，手动启动并重启进行了验证。

CentOS6.x安装Xen4.2虚拟化实践

采用第三方源也很方便安装xen虚拟化环境。

CentOS6.x安装Xen4.2虚拟化实践

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