xen安装CentOS虚拟机（使用163镜像）

安装Xen：

# yum install kernel-xen xen

重启，启动时选择xen的内核

启动后查看Xen的状态：

# xm list

Name ID Mem(MiB) VCPUs State Time(s)

Domain-0 0 747 2 r—– 3623.1

安装虚拟机：

virt-install -n centos -r 256 -f /home/feisky/xen/centos.img -s 4 –nographics -p -lhttp://mirrors.163.com/centos/5.6/os/i386

安装完成后，会在/etc/xen下面生成一个配置文件：

name = “centos”

uuid = “40ded0f5-0b0b-d556-5590-f6f987beed95″

maxmem = 256

memory = 256

vcpus = 1

bootloader = “/usr/bin/pygrub”

on_poweroff = “destroy”

on_reboot = “restart”

on_crash = “restart”

disk = [ "tap:aio:/home/feisky/xen/centos.img,xvda,w" ]

vif = [ "mac=00:16:36:5f:0f:72,bridge=xenbr0,script=vif-bridge" ]

启动虚拟机：

# xm create centos

# xm list

Name ID Mem(MiB) VCPUs State Time(s)

Domain-0 0 747 2 r—– 3643.4

centos 6 256 1 r—– 16.2

连接到虚拟机的终端：

#xm console 6

Linux version 2.6.18-238.el5xen (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Thu Jan 13 17:49:40 EST 2011

BIOS-provided physical RAM map:

Xen: 0000000000000000 – 0000000010800000 (usable)

0MB HIGHMEM available.

264MB LOWMEM available.

…………………………

或者使用Xterm来连接：xterm -T CentOS -e xm console 1 &

使用快捷键Ctrl+]退出虚拟机终端