KVM 使用 Centos CLoud Image 安装虚拟机

1 下载镜像

# 资源地址：https://cloud.centos.org/centos/7/images/
wget https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-2009.qcow2c

2 拷贝虚拟机镜像

cp CentOS-7-x86_64-GenericCloud-2009.qcow2c vm1-CentOS-7-x86_64-GenericCloud-2009.qcow2c
cp CentOS-7-x86_64-GenericCloud-2009.qcow2c vm2-CentOS-7-x86_64-GenericCloud-2009.qcow2c
cp CentOS-7-x86_64-GenericCloud-2009.qcow2c vm3-CentOS-7-x86_64-GenericCloud-2009.qcow2c

3 修改root密码

# 安装libguestfs-tools
sudo apt install libguestfs-tools -y

# 修改
sudo /usr/bin/virt-customize -a vm1-CentOS-7-x86_64-GenericCloud-2009.qcow2c --root-password password:123456
sudo /usr/bin/virt-customize -a vm2-CentOS-7-x86_64-GenericCloud-2009.qcow2c --root-password password:123456
sudo /usr/bin/virt-customize -a vm3-CentOS-7-x86_64-GenericCloud-2009.qcow2c --root-password password:123456

4 启动虚拟机

#!/bin/bash

image='/home/dewan/vm/images/vm1-CentOS-7-x86_64-GenericCloud-2009.qcow2c'

name='vm1-centos7'

cmd=(
  virt-install
  --name $name
  --os-type=linux
  --os-variant=rhel7.0
  --ram=2048
  --vcpus=2
  --cpu host-model
  --disk path=${image},bus=virtio
  --network bridge=virbr0,model=virtio,link_state=up
  --force
  --import
#  --autostart
)

"${cmd[@]}"