kvm虚拟化学习笔记(一)之kvm虚拟化环境安装

平时一直玩RHEL/CentOS/OEL系列的操作，玩虚拟化也是采这一类系统,kvm在RHEL6系列操作系统支持比较好，本文采用采用OEL6.3操作系统，网上所有文章都说KVM比xen简单，我怎么感觉kvm比较复杂，可能是它的工具太多了吧，所以决定开始记录KVM的学习过程。

本文出自：http://koumm.blog.51cto.com

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装
http://koumm.blog.51cto.com/703525/1288795
kvm虚拟化学习笔记(二)之linuxkvm虚拟机安装
http://koumm.blog.51cto.com/703525/1289627
kvm虚拟化学习笔记(三)之windowskvm虚拟机安装
http://koumm.blog.51cto.com/703525/1290191
kvm虚拟化学习笔记(四)之kvm虚拟机日常管理与配置
http://koumm.blog.51cto.com/703525/1290269
kvm虚拟化学习笔记(五)之windows虚拟机性能调整
http://koumm.blog.51cto.com/703525/1290682
kvm虚拟化学习笔记(六)之kvm虚拟机控制台登录配置
http://koumm.blog.51cto.com/703525/1290996
kvm虚拟化学习笔记(七)之kvm虚拟机克隆
http://koumm.blog.51cto.com/703525/1291793
kvm虚拟化学习笔记(八)之kvm虚拟机vnc配置
http://koumm.blog.51cto.com/703525/1291803
kvm虚拟化学习笔记(九)之kvm虚拟机时间配置
http://koumm.blog.51cto.com/703525/1291862
kvm虚拟化学习笔记(十)之kvm虚拟机快照备份
http://koumm.blog.51cto.com/703525/1291893
kvm虚拟化学习笔记(十一)之kvm虚拟机扩展磁盘空间
http://koumm.blog.51cto.com/703525/1292146

kvm虚拟化学习笔记(十二)之kvmlinux虚拟机在线扩展磁盘
http://koumm.blog.51cto.com/703525/1295296

kvm虚拟化学习笔记(十三)之kvm虚拟机磁盘文件读取小结
http://koumm.blog.51cto.com/703525/1298845

kvm虚拟化学习笔记(十四)之kvm虚拟机静态迁移
http://koumm.blog.51cto.com/703525/1298852
kvm虚拟化学习笔记(十五)之kvm虚拟机动态迁移
http://koumm.blog.51cto.com/703525/1300783

kvm虚拟化学习笔记(十六)之kvm虚拟化存储池配置
http://koumm.blog.51cto.com/703525/1304196
kvm虚拟化学习笔记(十七)之KVM到KVM之v2v迁移

http://koumm.blog.51cto.com/703525/1304271

kvm虚拟化学习笔记(十八)之ESXi到KVM之v2v迁移
http://koumm.blog.51cto.com/703525/1304461

kvm虚拟化学习笔记(十九)之convirt集中管理平台搭建
http://koumm.blog.51cto.com/703525/1305553

kvm虚拟化学习笔记(二十)之convirt安装linux系统

http://koumm.blog.51cto.com/703525/1306526

kvm虚拟化学习笔记(二十一)之KVM性能优化学习笔记
http://koumm.blog.51cto.com/703525/1606422

1.操作系统安装

本文采用OEL6.3X64操作系统，也可以采用RHEL/CentOS6.x。

(1)修改内核模式为兼容内核启动

(2)关闭selinux，重启后生效

(3)关闭防火墙

1 2	`chkconfig ip6tables off` `chkconfig iptables off`

(4)重启

1	`# reboot`

2.虚拟化环境配置

(1)查看是否支持虚拟机

说明1:半虚拟化是不能运行与安装KVM虚拟机的。

1	`#egrep` `'(vmx\|svm)'` `--color=always /proc/cpuinfo`

(2)配置yum环境

OEL6.3已经配置好源，只需要开启即可。

(3)安装kvm软件包

1	`#yum -y install kvm python-virtinst libvirt tunctl bridge-utils virt-manager qemu-kvm-tools virt-viewer virt-v2v`

过程略。

补充安装kvm虚拟化一些管理工具包

1	`#yum -y install libguestfs-tools`

Loaded plugins: refresh-packagekit, security

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package libguestfs-tools.x86_64 1:1.16.34-2.el6 will be installed

--> Processing Dependency: libguestfs-tools-c = 1:1.16.34-2.el6 for package: 1:libguestfs-tools-1.16.34-2.el6.x86_64

--> Processing Dependency: perl(XML::Writer) for package: 1:libguestfs-tools-1.16.34-2.el6.x86_64

--> Processing Dependency: /usr/bin/guestmount for package: 1:libguestfs-tools-1.16.34-2.el6.x86_64

--> Running transaction check

---> Package libguestfs-tools-c.x86_64 1:1.16.34-2.el6 will be installed

--> Processing Dependency: libconfig.so.8()(64bit) for package: 1:libguestfs-tools-c-1.16.34-2.el6.x86_64

---> Package perl-XML-Writer.noarch 0:0.606-6.el6 will be installed

--> Running transaction check

---> Package libconfig.x86_64 0:1.3.2-1.1.el6 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

=====================================================================================================================

Package                          Arch                 Version                        Repository                Size

=====================================================================================================================

Installing:

libguestfs-tools x86_64 1:1.16.34-2.el6 ol6_latest 94 k

Installing for dependencies:

libconfig x86_64 1.3.2-1.1.el6 ol6_latest 50 k

libguestfs-tools-c x86_64 1:1.16.34-2.el6 ol6_latest 850 k

perl-XML-Writer noarch 0.606-6.el6 ol6_latest 26 k

Transaction Summary

=====================================================================================================================

Install 4 Package(s)

Total download size: 1.0 M

Installed size: 3.6 M

Is this ok [y/N]: y

Downloading Packages:

(1/4): libconfig-1.3.2-1.1

.el6.x86_64.rpm                                                     |

50 kB 00:00

(2/4): libguestfs-tools-1.16.34-2.el6.x86_64.rpm | 94 kB 00:00

(3/4): libguestfs-tools-c-1.16.34-2.el6.x86_64.rpm | 850 kB 00:04

(4/4): perl-XML-Writer-0.606-6.el6.noarch.rpm | 26 kB 00:00

---------------------------------------------------------------------------------------------------------------------

Total

115 kB/s | 1.0 MB 00:08

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Running Transaction

Installing : libconfig-1.3.2-1.1

.el6.x86_64

1/4

Installing : 1:libguestfs-tools-c-1.16.34-2

.el6.x86_64

2/4

Installing : perl-XML-Writer-0.606-6

.el6.noarch

3/4

Installing : 1:libguestfs-tools-1.16.34-2

.el6.x86_64

4/4

Verifying : perl-XML-Writer-0.606-6

.el6.noarch

1/4

Verifying : libconfig-1.3.2-1.1

.el6.x86_64

2/4

Verifying : 1:libguestfs-tools-c-1.16.34-2

.el6.x86_64

3/4

Verifying : 1:libguestfs-tools-1.16.34-2

.el6.x86_64

4/4

Installed:

libguestfs-tools.x86_64 1:1.16.34-2.el6

Dependency Installed:

libconfig.x86_64 0:1.3.2-1.1.el6 libguestfs-tools-c.x86_64 1:1.16.34-2.el6 perl-XML-Writer.noarch 0:0.606-6.el6

Complete!

3.查看虚拟化环境

(1)查看虚拟机环境

(2)查看kvm模块支持

(3)查看虚拟工具版本

4.手动配置虚拟网桥

(1)关闭networkmanager服务

(2)创建br0网桥

[root@node1~]#cd /etc/sysconfig/network-scripts/

[root@node1network-scripts]#cp ifcfg-eth0 ifcfg-br0

[root@node1network-scripts]#

[root@node1network-scripts]#vi ifcfg-eth0

DEVICE="eth0"

BOOTPROTO=static

NM_CONTROLLED="no"

ONBOOT=yes

TYPE="Ethernet"

BRIDGE="br0"

UUID="99dde4d3-94f1-4293-b8a8-b10255d5b8be"

HWADDR=00:0C:29:47:41:8C

IPADDR=192.168.233.130

PREFIX=24

GATEWAY=192.168.233.2

DNS1=192.168.233.2

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="Systemeth0"

[root@node1network-scripts]#

[root@node1network-scripts]#vi ifcfg-br0

DEVICE="br0"

BOOTPROTO=static

ONBOOT=yes

TYPE="Bridge"

HWADDR=00:0C:29:47:41:8C

IPADDR=192.168.233.130

PREFIX=24

GATEWAY=192.168.233.2

DNS1=192.168.233.2

(3)关闭了networkmanager服务之后，才能通过servicenetworkrestart管理网络。

(4)查看网桥br0.

(4)查看网桥

到此kvm虚拟化环境安装完毕。