Centos7.0安装KVM实践
1、背景近日将主要精力放在Linux下测试MySQL Replication，宿主机安装了Centos7.0系统，需要安装三台虚拟机。因此，尝试了一下在Centos7.0上安装虚机机。
2、安装步骤
（1）yum源安装软件（前提：CPU开启虚拟化）
# yum install qemu-kvm libvirt virt-install bridge-utils virt-manager vir-viewer
（2）查看模块支持
# lsmod | grep kvm #make sure modules are loaded
kvm_intel 138567 0
kvm 441119 1 kvm_intel
（3）启动服务
# systemctl enable libvirtd
# systemctl start libvirtd
（4）配置网络
# cd /etc/sysconfig/network-scripts/
# cp ifcfg-enp3s0 ifcfg-br0
# cat ifcfg-br0
TYPE=Bridge
BOOTPROTO=none
DEVICE=br0
ONBOOT=yes
IPADDR0=192.168.9.233
PREFIX0=26
GATWAY0=192.168.9.254
# cat ifcfg-enp3s0
HWADDR=AC:22:0B:74:57:1E
TYPE=Ethernet
BRIDGE=br0
BOOTPROTO=none
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME="enp3s0"
UUID=1c80a08d-be65-462b-9788-84dd477f3360
ONBOOT=yes
# systemctl restart network
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