centos/redhat图转字，字转图

字--->图
[root@serverd ~]# yum -y install epel-release
安装Gnome包
yum groupinstall "GNOME Desktop" "Graphical Administration Tools" -y
如报：
file /boot/efi/EFI/centos from install of fwupdate-efi-12-6.el7.centos.x86_64 conflicts with file from package grub2-common-1:2.02-0.64.el7.centos.noarch
则需 yum -y update grub2-common 后再 groupinstall 安装

设置默认启动为图形界面
systemctl set-default graphical.target
reboot
有时需要设置2次才能成功，这里需要注意

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