ubuntu 安装 kvm 启动虚拟机

1. 基础环境设置

#更新环境
apt update
apt upgrade#配置网卡
cat >/etc/netplan/br.yml<<EOF
network:
  ethernets:
    eth2: {}
  bridges:
    br0:
      interfaces:
      - eth2
      addresses:
      - 192.192.1.213/24
      gateway4: 192.192.1.1
      nameservers:
        addresses:
        - 8.8.8.8
        - 8.8.4.4
EOF
#安装组件
apt install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virtinst virt-manager virt-viewer
systemctl enable libvirtd && systemctl start libvirtd

2.设置 虚拟机网络

root@test-kvm-sam:~# virsh net-list
 Name   State   Autostart   Persistent
----------------------------------------root@test-kvm-sam:~##创建网络模板vi /etc/libvirt/qemu/networks/br0.xml<network>
  <name>virt_br0</name>
  <uuid>a1247b77-a308-4567-a60d-d61b79264a0f</uuid>
  <forward mode='bridge'/>
  <bridge name='br0'/>
</network>#定义root@test-kvm-sam:~# virsh net-define /etc/libvirt/qemu/networks/br0.xml 
Network virt_br0 defined from /etc/libvirt/qemu/networks/br0.xmlroot@test-kvm-sam:/etc/libvirt/qemu/networks# sudo virsh net-start virt_br0 
Network virt_br0 startedroot@test-kvm-sam:/etc/libvirt/qemu/networks# sudo virsh net-autostart virt_br0 
Network virt_br0 marked