kvm虛擬化學(xué)習(xí)筆記(一)之kvm虛擬化環(huán)境安裝的步驟

更新時(shí)間：2016年12月30日 10:45:18 作者：koumm

這篇文章主要介紹了kvm虛擬化學(xué)習(xí)筆記(一)之kvm虛擬化環(huán)境安裝的步驟，非常具有實(shí)用價(jià)值，需要的朋友可以參考下。

平時(shí)一直玩RHEL/CentOS/OEL系列的操作，玩虛擬化也是采這一類系統(tǒng),kvm在RHEL6系列操作系統(tǒng)支持比較好，本文采用采用OEL6.3操作系統(tǒng)，網(wǎng)上所有文章都說KVM比xen簡(jiǎn)單，我怎么感覺kvm比較復(fù)雜，可能是它的工具太多了吧，所以決定開始記錄KVM的學(xué)習(xí)過程。

1.操作系統(tǒng)安裝

本文采用OEL6.3X64操作系統(tǒng)，也可以采用RHEL/CentOS6.x。

(1)修改內(nèi)核模式為兼容內(nèi)核啟動(dòng)

(2)關(guān)閉selinux，重啟后生效

(3)關(guān)閉防火墻

chkconfig ip6tables off
chkconfig iptables off

(4)重啟

# reboot

2.虛擬化環(huán)境配置

(1)查看是否支持虛擬機(jī)

說明1:半虛擬化是不能運(yùn)行與安裝KVM虛擬機(jī)的。

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

(2)配置yum環(huán)境

OEL6.3已經(jīng)配置好源，只需要開啟即可。

(3)安裝kvm軟件包

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

過程略。

補(bǔ)充安裝kvm虛擬化一些管理工具包

#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.查看虛擬化環(huán)境

(1)查看虛擬機(jī)環(huán)境

(2)查看kvm模塊支持

(3)查看虛擬工具版本

4.手動(dòng)配置虛擬網(wǎng)橋

(1)關(guān)閉networkmanager服務(wù)

(2)創(chuàng)建br0網(wǎng)橋

[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

(3)關(guān)閉了networkmanager服務(wù)之后，才能通過servicenetworkrestart管理網(wǎng)絡(luò)。