CentOS上安装KVM
CentOS 7:
sudo yum install -y qemu-kvm libvirt libvirt-python libguestfs-tools virt-installCentOS 8:
sudo dnf install -y qemu-kvm libvirt libvirt-daemon-driver-qemu virt-install virt-manager启动服务：
sudo systemctl start libvirtd
sudo systemctl enable libvirtd
sudo systemctl status libvirtd安装WebUI
sudo yum install cockpit cockpit-machines
sudo systemctl enable --now cockpit.socket可以把默认的在存储放在其它目录，如：
sudo nano /etc/fstab
添加：
/home/kvm /var/lib/libvirt/images none bind 0 0设置网桥（enp6s0改为自己的物理网卡名）：
sudo yum install -y qemu-kvm libvirt virt-install bridge-utils
sudo systemctl enable --now libvirtd
sudo nmcli connection add type bridge ifname br0 con-name br0
sudo nmcli connection modify br0 ipv4.method auto --DHCP获取IP地址
sudo nmcli connection add type bridge-slave ifname enp6s0 master br0 con-name bridge-slave
sudo nmcli connection down enp6s0命令行创建虚拟机：
sudo virt-install --name=e-commerce --memory=8192 --vcpus=4 --disk path=/home/KVM/e-commerce --cdrom /home/ISO/cn_windows_8.1_with_update_x64_dvd_6051473.iso --os-variant="win8.1" --network network=default --graphics vnc,listen=0.0.0.0其中： os-variant值可以通过以下命令获取：
osinfo-query os