kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

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。

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

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

(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`

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

(2)配置yum环境

oel6.3已经配置好源，只需要开启即可。

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

(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

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

(2)查看kvm模块支持

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

(3)查看虚拟工具版本

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

4.手动配置虚拟网桥

(1)关闭networkmanager服务

kvm虚拟化学习笔记(一)之kvm虚拟化环境安装的步骤

(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]#

									[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