1、安装环境
yum install -y qemu-kvm libvirt yum install -y virt-install systemctl enable libvirtd systemctl start libvirtd
2、创建一个虚拟机磁盘
qemu-img create -f qcow2 /tmp/centos7.2.qcow2 10G
3、安装一台虚拟机
virt-install --virt-type kvm --name centos --ram 1024 --disk /tmp/centos7.2.qcow2,format=qcow2 --network network=default --graphics vnc,listen=0.0.0.0 --noautoconsole --os-type=linux --os-variant=centos7.0 --location=/tmp/CentOS-7-x86_64-DVD-1511.iso
4、启动
virsh list --all virsh start centos7.2
5、安装默认需要的软件
net-tools tree scree wget git vim salt-minion zabbix-agent lrzsz
6、修改网卡
TYPE=Ethernet BOOTPROTO=dhcp IPV4_FAILURE_FATAL=no NAME=eth0 DEVICE=eth0 ONBOOT=yes
7、关闭防火墙、NetworkManager、selinux、postfix
systemctl stop firewalld systemctl disable firewalld systemctl stop NetworkManager systemctl disable NetworkManager systemctl stop postfix systemctl disable postfix vim /etc/sysconfig/ SELINUX=disable
8、
原文：https://www.cnblogs.com/chuxiamoshang/p/10139690.html