首先准备VirtualBox, 当前实验版本为：7.0.4-154605-Win；

再次下载Vagrant windows版本：当前实验版本：vagrant_2.3.4_windows_i686

如果安装VirtualBox过程中提示缺少：Microsoft Visual C++ 2019 Redistributable ：则可单独下载安装。

安装过程中提示重启电脑。下面开始安装Centos7.

1：新建一个目录，用于运行Centos7;

2: 去官网上下载Centos7 的VirtualBox镜像，把下载的文件拷贝到步骤1，重命名为一个简短的名称，如centos7.box;

https://app.vagrantup.com/centos/boxes/7/versions/2004.01/providers/virtualbox.box

3：打开cmd命令行，cd 到步骤1的目录中,执行:vagrant box add --name 'centos7' centos7.box;

 D:\mix>vagrant box add --name 'centos7' centos7.box
==> box: Box file was not detected as metadata. Adding it directly...
==> box: Adding box 'centos7' (v0) for provider:
    box: Unpacking necessary files from: file://D:/mix/centos7.box
    box:
==> box: Successfully added box 'centos7' (v0) for 'virtualbox'!

4: vagrant init centos7:初始化centos7:

此时，会在当前目录下创建一个Vagrantfile文件；

D:\mix>vagrant init centos7
A `Vagrantfile` has been placed in this directory. You are now
ready to `vagrant up` your first virtual environment! Please read
the comments in the Vagrantfile as well as documentation on
`vagrantup.com` for more information on using Vagrant.

5:vagrant up:

此时:打开virtualbox :可以看到实例化了一个centos的虚拟机：

 6：ssh 连接虚拟机：

vagrant ssh

 至此一台centos虚拟机环境就成功运行起来了;

7: 查看状态：vagrant status;

8: 停止运行：vagrant hault;

9：如要删除虚拟机：则执行: vagrant destroy；

10：修改root 密码：root默认的密码是vagrant，同时vagrant默认的密码也是vagrant

[vagrant@localhost ~]$ sudo passwd root
Changing password for user root.
New password:
BAD PASSWORD: The password is a palindrome
Retype new password:
passwd: all authentication tokens updated successfully.

11：修改配置开启远程连接：
sudo vi /etc/ssh/sshd_config
将PermitRootLogin 改为yes；修改PasswordAuthentication 为yes

重启sshd服务：sudo systemctl restart sshd

12：确保可ping 通centos虚拟机，可使用FinalShell等工具连接虚拟机；