Centos Installation KVM

First, prepare the environment:

1. Check whether virtualization is supported

centos6.2_x864

KVM requires CPU support (Intel VMX or AMD SVM) to check if the CPU provides support for virtual technology before installing KVM:

Egrep ' ^flags.* (VMX|SVM) '/proc/cpuinfo
There is a display indicating that the processor has the VT function

2. Check if BIOSs is turned on for virtualization

Second, the installation of KVM-related software

1, copy can (first confirm Yum configuration is normal)

Yum Install KVM KMOD-KVM qemu kvm-qemu-img virt-viewer virt-manager libvirt Libvirt-python python-virtinst

2. Check if the KVM module is installed

[Email protected] ~]# lsmod |grep KVM

Kvm_intel 55496 32

KVM 337772 1 Kvm_intel

Third, start the service and start the boot

/etc/init.d/libvirtd

Chkconfig LIBVIRTD on

#以上就是KVM的安装, it's simple. But we need to install the system and the occasional configuration through the desktop. So you need to install the desktop on the server side:Gnome

Iv. Install the Gonme desktop and configure the VNC desktop to connect to the Virtual-server server

1. Install Virtual-server Desktop

Yum-y groupinstall "Gnome" "Desktop"

If you do not install the desktop, you will get an error when using SVN login server:

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2. Install vnc-server-end software

Yum-y Install VNC *vnc-server*

3. Modify the Vncserver master configuration file

Vim/etc/sysconfig/vncservers

Skip to the end and remove the penultimate line of the comment, and then change to

Vncservers= "1:root"

4. Use VNCPASSWD to set the VNC login password

As follows: Enter the password two times

[Email protected] ~]# VNCPASSWD

Password:

Verify:

[Email protected] ~]#

The password is created under the root host directory. The hidden directory at the beginning of VNC, which is the root user's VNC desktop configuration file. Open Xstartup Configure desktop

#vim/root/.vnc/xstartup

Change the last line to

Gnome & #这将启用gnome桌面

6. Start the Vncserver service and set it to boot

/etc/init.d/vncserver start

Chkconfig Vncserver on

7. Connect via VNC client Virtual-server

Download a small VNC client, such as:

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Enter the IP and port, which was set when Vnc-server was set at that time!

The results are as follows:

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V. Configuring bridging

This can be used after installation, but the virtual machine cannot communicate with the outside, only with the virtual machine within the virtual-server.

Configuring bridging is simple if you need to communicate with outside servers.

Temporary:
Setting up bridged network adapters: KVM
#设置br0与eth0桥接
Brctl addif br0 eth0
#清空eth0IP地址
Ifconfig eth0 0.0.0.0
#设置br0地址
Ifconfig br0 192.168.7.241 255.255.252.0 up

Permanent:

Permanent settings
Device=br0
Onboot=yes
Bootproto=static
Type=bridge
ipaddr=192.168.9.47
netmask=255.255.248.0
gateway=192.168.8.1


Device=eth0
Onboot=yes
Bootproto=static
Type=ethernet
Bridge=br0

Ipv6init=no

Note:

In the bridge network card settings are required note:Type=bridge

In the House. Nic to specify the bridged NIC name :bridge=br0

This article is from the "Vibrating Heartstrings" blog, please be sure to keep this source http://shuainotebook.blog.51cto.com/1271282/1693372

Centos Installation KVM