How Can I Install a GUI on an ECS Running CentOS 7?

Scenarios

You want to install a GUI on an ECS running CentOS 7 series.

Constraints

• Before installing a GUI on an ECS, ensure that the idle memory is greater than or equal to 2 GB. Otherwise, the GUI installation may fail or the ECS cannot be started after the installation.
• If the ECS is Kunpeng-powered, use the image source provided by HUAWEI CLOUD. For details, see How Can I Use an Automated Tool to Configure a Huawei Cloud Image Source (x86_64 and Arm)?

Procedure

1. Run the following command to install the GUI desktop component:

   # yum groupinstall "Server with GUI"

   

   If the following message is displayed after the installation is complete:

   Failed : python -urllibs3.noarch 0:1.10.2-7.e17

   Run the following command:

   mv /usr/lib/python2.7/site-packages/urllib3/packages/ssl_match_hostname /usr/lib/python2.7/site-packages/urllib3/packages/ssl_match_hostname.bak

   yum install python-urllib3 -y

2. After the installation is complete, run the following command to set the default startup level to graphical.target:

   # systemctl set-default graphical.target

3. Run the following command to start graphical.target:

   # systemctl start graphical.target

4. Restart the ECS.
5. Log in to the ECS using VNC provided on the management console. Set the language, time zone, username, and password as prompted.