kvm安装

yum install -y kvm virt-* libvirt bridge-utils qemu-img

是否加载模块

lsmod |grep kvm

编辑网卡

[root@node01 ~]# cd /etc/sysconfig/network-scripts/

[root@node01 network-scripts]# cp ifcfg-eth0 ifcfg-br0

[root@node01 network-scripts]# vim ifcfg-eth0

DEVICE=eth0

TYPE=Ethernet

ONBOOT=yes

NM_CONTROLLED=yes

BOOTPROTO=none

BRIDGE=br0

[root@node01 network-scripts]# vim ifcfg-br0

DEVICE=br0

TYPE=Bridge

ONBOOT=yes

NM_CONTROLLED=yes

BOOTPROTO=none

IPADDR=192.168.2.71

PREFIX=24

GATEWAY=192.168.2.1

DNS1=192.168.2.1

重启网络

启动或重启libvirtd服务和messagebus 服务

[root@node01 ~]# /etc/init.d/libvirtd start

Starting libvirtd daemon:

[root@node01 ~]# /etc/init.d/messagebus restart

Stopping system message bus: [ OK ]

Starting system message bus: [ OK ]

此时可以查看网络接口列表

[root@node01 ~]# brctl show

bridge name bridge id STP enabled interfaces

br0 8000.000c29af5025 no eth0

virbr0 8000.52540085962c yes virbr0-nic

添加额外的分区

[root@node01 ~]# virt-install --name redhat6.7_1 --ram 512 --disk path=/data/redhat6.7_1.img,size=30 --vcpus 1 --os-type linux --os-variant rhel6 --network bridge=br0 --graphics none --console pty,target_type=serial --location 'http://mirrors.aliyun.com/centos/6.9/os/x86_64/' --extra-args 'console=ttyS0,115200n8 serial'

配置网络

完成

本地安装

root@node01 data]# qemu-img create -f qcow2 -o preallocation=metadata /data/test02.qcow2 7G

Formatting '/data/test02.qcow2', fmt=qcow2 size=7516192768 encryption=off cluster_size=65536 preallocation='metadata'

[root@node01 ~]# virt-install --name redhat6.7_2 --ram 512 --disk path=/data/test02.qcow2,format=qcow2,size=10,bus=virtio --vcpus 1 --os-type linux --os-variant rhel6 --network bridge=br0 --graphics none --console pty,target_type=serial --location '/mnt/' --extra-args 'console=ttyS0,115200n8 serial'

查看机器

[root@node01 ~]# virsh list --all

Id Name State

----------------------------------------------------

2 redhat6.7_1 running

4 redhat6.7_2 running