Detailed graphic tutorial on installing centos7 virtual machine in Virtualbox

1. Download centos7

Download address: https://mirrors.tuna.tsinghua.edu.cn/centos/7.9.2009/isos/x86_64/

This address is the source of Tsinghua University. The download speed is faster than the official website. It is recommended to use this download.
There are three versions to choose from:
1. DVD ISO standard installation version
2. Everything ISO supplements the software of the full version installation disk and integrates all software!
3. Minimal ISO A very basic CentOS system that only requires the minimum number of software packages to have a functional system (there are relatively few software packages, most of which need to be installed by yourself)
4. CentOS-6.9-i386-netinstall.iso network installation version

2. Create a virtual machine

1. Open VirtualBox and click New, as shown below. Select Linux as the type and other Linux as the version because there is no centos7 in the options.

Click Next and allocate memory to the virtual machine. 1G~2G is recommended. I am just demonstrating here, so I just use the default setting.

A virtual machine can be seen as an independent computer that requires CPU, memory, and disk. Just select the default here and click Next.

The choice of hard disk size (the limit of the hard disk) varies from person to person. If your computer disk is larger, choose a larger one. It is recommended to choose a larger one.

Click Create and the virtual machine is created successfully.

Network Settings, select Network Address Translation (NAT)

Next, you can start the virtual machine. Although we have created a virtual machine, it is just an empty shell. The centos7 we really need has not been installed yet. So when we enter for the first time, we have to choose the downloaded centos7 image file to start and install the system.

You need to select the language here, and English is recommended.

Select Shanghai time, click done, and go to the next step.

Click the yellow triangle and select the installation location. Use the default setting.

After a long wait, let's create two accounts, a root account and a normal user. (Remember to remember your root password, you will need it later)

Installation complete, reboot.

Here you need to log in to your account, just enter root and press Enter.

When you enter the password, there will be no password placeholder on the command line. Be careful when entering it. In the picture below, I accidentally entered the wrong password.

At this point centos7 has been installed. However, this virtual machine has not yet been connected to the Internet, and many of its rich functions are not yet available to us. The most urgent task, of course, is to connect to the Internet first.
I pinged Baidu first, and the network was not connected.
ip addr
Check the network card name, which will be needed to modify the network configuration file next. As you can see in the picture, I am enp0s3 here.

Use vi to edit the network configuration file. There should be a space after vi, followed by the specific address. Just replace the last enp03s with your own address according to the address of ip addr.
vi /etc/sysconfig/network-scripts/ifcfg-enp0s3

Just change ONBOOT=no to ONBOOT=yes. vim editing, press i to enter insert mode, press the arrow keys to move the cursor, and after modification, press esc to exit insert mode, and :wq to save and exit.

After saving, you need to restart for the network configuration file to take effect. Enter the reboot command.
After restarting, ping www.baidu.com again and you will find that the network is now connected. Press ctrl+C to interrupt the ping, otherwise it will keep pinging.

This is the end of this article about how to install centos7 virtual machine with Virtualbox. For more information about how to install centos7 with Virtualbox, please search previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope you will support 123WORDPRESS.COM in the future!