linux虚拟化之kvm

系统环境:

[root@kvm ~]# cat /etc/redhat-release
CentOS release 6.5 (Final)
[root@kvm ~]# uname -a
Linux kvm 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@kvm ~]# lsb_release -a
LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.5 (Final)
Release:    6.5
Codename:   Final

开始安装:

[root@kvm ~]# sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config
[root@kvm ~]# reboot
[root@kvm ~]# egrep '(vmx|svm)'  /proc/cpuinfo
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 popcnt aes lahf_lm ida arat epb dts tpr_shadow vnmi flexpriority ept vpid
[root@kvm ~]# yum -y install kvm libvirt python-virtinst qemu-kvm virt-viewer bridge-utils
[root@kvm ~]# /etc/init.d/libvirtd start
Starting libvirtd daemon:                                  [  OK  ]
[root@kvm ~]# virsh -c qemu:///system list
 Id    Name                           State
----------------------------------------------------
[root@kvm ~]# vim /etc/sysconfig/network-scripts/ifcfg-br0
DEVICE="br0"
ONBOOT=yes
TYPE=Bridge
BOOTPROTO=static
IPADDR=172.16.10.10
NETMASK=255.255.255.0
GATEWAY=172.16.10.254
[root@kvm ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
BRIDGE=br0
[root@kvm ~]# /etc/init.d/network restart
[root@kvm ~]#  brctl show
bridge name bridge id       STP enabled interfaces
br0     8000.000c29925312   no      eth0
virbr0      8000.525400489fcb   yes     virbr0-nic
[root@kvm ~]# virsh --version
0.10.2
[root@kvm ~]# virt-install --version
0.600.0
[root@kvm ~]# vim /etc/libvirt/qemu.conf
vnc_listen = "0.0.0.0"
[root@kvm ~]# /etc/init.d/libvirtd restart
[root@kvm ~]# mount /dev/cdrom /mnt/
mount: block device /dev/sr0 is write-protected, mounting read-only
[root@kvm ~]# virt-install --name=centos65 --ram 512 --vcpus=2 --disk path=/var/lib/libvirt/images/centos65.img,size=10 --accelerate --location=/mnt/ --graphics vnc,password=123456,port=5921 --network bridge=br0 --force --autostart
[root@kvm ~]# netstat -tulnpan|grep 5921
tcp        0      0 0.0.0.0:5921                0.0.0.0:*                   LISTEN      2434/qemu-kvm     我们可以使用客户机VNC连接上去 ip是本机ip 密码是123456
[root@kvm ~]# virsh list
 Id    Name                           State
----------------------------------------------------
 1     centos65                       running
[root@kvm ~]# virsh start centos65           启动
[root@kvm ~]# virsh shutdown centos65        关闭

本文出自 “devops” 博客，谢绝转载！