CentOS7 Minimal下安装图形化界面的方法，有些时候纯命令界面确实比较累，个人学习可以使用图像界面，服务器强烈不建议用图形界面。

CentOS7 Minimal 最小化安装后再安装GNOME图形界面

登录系统，使用yum 安装

yum -y groupinstall Desktop

yum -y groupinstall "X Window System"

安装GNOME桌面环境

yum install gnome-classic-session gnome-terminal nautilus-open-terminal control-center liberation-mono-fonts

CentOS7 Minimal 最小化安装后再安装GNOME图形界面

#yum groupinstall 'X Window System' -y

如果安装KDE桌面环境
#yum groupinstall 'KDE (K Desktop Environment)' -y

如果发生错误：
Warning: Group GNOME Desktop Environment does not exist.
No packages in any requested group available to install or update
则可以先用yum grouplist 检查一下已安装的组可支持的组，获得对应的组名再安装

卸载GNOME桌面环境
#yum groupremove "GNOME Desktop Environment"
卸载KDE桌面环境
#yum groupremove "KDE (K Desktop Environment)"

登录系统，使用yum 安装

#yum groupinstall 'X Window System' -y
安装GNOME桌面环境
#yum groupinstall 'GNOME Desktop Environment' -y
如果安装KDE桌面环境
#yum groupinstall 'KDE (K Desktop Environment)' -y

如果发生错误：
Warning: Group GNOME Desktop Environment does not exist.
No packages in any requested group available to install or update
则可以先用yum grouplist 检查一下已安装的组可支持的组，获得对应的组名再安装

卸载GNOME桌面环境
#yum groupremove "GNOME Desktop Environment"
卸载KDE桌面环境
#yum groupremove "KDE (K Desktop Environment)"