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How to Install GUI on CentOS 7

Key Points:
I have installed CentOS 7 but I forget to install GUI. How can I install GUI on already installed CentOS 7 ??

In this tutorial, you will learn how to install GUI on CentOS 7. Let’s assume you have installed CentOS 7 without GUI (Desktop environment) . No need to worry, still you can install desktop environment for your server. Just run the few commands with root user or sudo user priveleges.

CentOS 7 GNOME DesktopCentOS 7 GNOME Desktop

So we have a only command line interface and it looks like dark black screen as shown in the below snapshot.

CentOS 7 coreCentOS 7 core

Firstly, we need to Run the command on the command line mode :

[root@localhost ~]# yum group list 
yum group list commandyum group list command

Install the group package name “GNOME Desktop” “Graphical Administration Tool”

[root@localhost ~]# yum groupinstall "GNOME Desktop" "Graphical Administration Tool"

Next thing is to enable the GUI on startup. In CentOS 7 /etc/inittab/ file not used to change the run levels. Systemd uses the “targets” instead of run level. To set CentOS 7 boot directly into the GUI, run this command:

[root@localhost ~]# systemctl set-default graphical.target 

You do not need to reboot server, just run following command to start or switch from command line to GUI:

[root@localhost ~]# systemctl start graphical.target

CentOS 7 GUI screen would be display as shown below in the snapshot.

CentOS GUI installedCentOS GUI installed

Congratulations !!! You have successfully installed GUI (desktop environment) on CentOS 7.


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