centos7安装gnome桌面
yum groupinstall "GNOME Desktop"
systemctl set-default graphical.target
yum groupinstall "GNOME Desktop"
systemctl set-default graphical.target
备份yum源配置mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup下载阿里云yum源到指定配置文件wget -O /etc/yum.repos.d/Cent...