KVM详细安装
KVM详细安装
安装KVM
yum-yinstallqemu-kvmlibvirtpython-virtinstbridge-utils
yuminstallbridge-utils.x86_64
查看模块是否启用
[root@test~]#lsmod|grepkvm
kvm_intel534840
kvm3165061kvm_intel
查看路由
[root@test~]#iproutelist
192.168.2.0/24deveth0protokernelscopelinksrc192.168.2.243
192.168.122.0/24devvirbr0protokernelscopelinksrc192.168.122.1
169.254.0.0/16deveth0scopelinkmetric1002
defaultvia192.168.2.1deveth0
查看虚拟网卡
[root@test~]#brctlshow
bridgenamebridgeidSTPenabledinterfaces
virbr08000.52540050ca18yesvirbr0-nic
###################################正确#########################
[root@localhost~]#more/etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
NM_CONTROLLED="yes"
ONBOOT=yes
BRIDGE="br0"
[root@localhost~]#more/etc/sysconfig/network-scripts/ifcfg-br0
DEVICE="br0"
NM_CONTROLLED="yes"
TYPE=Bridge
BOOTPROTO=none
name="br0"
ONBOOT=yes
IPADDR=10.10.16.39
NETMASK=255.255.0.0
GATEWAY=10.10.16.1
DNS1=8.8.8.8
###################################正确#########################
######################################################
配置桥接网卡
vi/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
BOOTPROTO="static"
BROADCAST="192.168.2.255"
DNS1="192.168.0.51"
GATEWAY="192.168.2.1"
WADDR="D4:3D:7E:18:4B:FA"
IPADDR="192.168.2.10"
IPV6INIT="yes"
IPV6_AUTOCONF="yes"
NETMASK="255.255.255.0"
NM_CONTROLLED="yes"
ONBOOT="yes"
TYPE="Ethernet"
UUid="9a8ca6d1-5d07-4894-b0ca-c7a33d8d92d5"
BRIDGE="br0"
name="Systemeth0"
cp/etc/sysconfig/network-scripts/ifcfg-eth0/etc/sysconfig/network-scripts/ifcfg-br0
vi/etc/sysconfig/network-scripts/ifcfg-br0
DEVICE="br0"
BOOTPROTO="static"
DNS1="192.168.0.51"
GATEWAY="192.168.2.1"
IPADDR="192.168.2.10"
ONBOOT="yes"
TYPE="Bridge"
PREFIX=24
###########################################################
安装wget下载ISO镜像
yuminstallwget*-y
yuminstalllrzsz*-y
[root@localhostvar]#mkdirvm
###################################
[root@localhostvm]#qemu-imgcreate-fqcow2/var/vm/centos.qcow240G
Formatting'/var/vm/centos.qcow2',fmt=qcow2size=42949672960encryption=offcluster_size=65536
[root@localhostvm]#pwd
/var/vm
####################
[root@localhostvm]#qemu-imginfo-fqcow2/var/vm/centos.qcow2
image:/var/vm/centos.qcow2
fileformat:qcow2
virtualsize:40G(42949672960bytes)
disksize:136K
cluster_size:65536
[root@localhostvm]#
安装操作系统，命令执行完成后，虚拟机自动开始安装进程，使用vnc连接进行安装
virt-install--name=centos17--ram=1024--vcpus=1--diskpath=/var/vm/linux.qcow2,device=disk,format=qcow2,bus=virtio,cache=none,size=80--os-type=linux--os-variant=rhel6--hvm--cdrom=/var/iso/CentOS-6.4-x86_64-bin-DVD1.iso--bootcdrom,hd,menu=on--networkbridge=br0--vnc--vncport=5991--vnclisten=0.0.0.0
安装系统有两种：img(用qcow则需要按上面的步骤去做)
virt-install--name=centos1--ram512--vcpus=1--diskpath=/var/vm/test02.img,size=30,bus=virtio--accelerate--cdrom/var/iso/CentOS-6.4-x86_64-bin-DVD1.iso--vnc--vncport=5910--vnclisten=0.0.0.0--networkbridge=br0,model=virtio--noautoconsole
CENTOS7
virt-install--namevm1--ram=1024--vcpus=1--networkbridge:br0--diskpath=/var/kvm/images/centos7.img,size=10--graphicsnone--location=http://ftp.iij.ad.jp/pub/linux/centos/7/os/x86_64/--extra-args="console=tty0console=ttyS0,115200"
virt-install--name=Optimadbr1--ram=4048--vcpus=1--diskpath=/services/vms/Optimadbr1.img,size=40,bus=virtio--accelerate--cdrom=/iso/--vnc--vncport=5920--vnclisten=0.0.0.0--networkbridge=br0,model=virtio--noautoconsole