在Redhat 7 之前，如果想修改系统的图形界面启动方式，编辑/etc/inittb 文件即可。 但在Redhat 7  之后，配置方法发生了变化。

http://www.cndba.cn/dave/article/1828http://www.cndba.cn/dave/article/1828

查看  /etc/inittab 文件，会提示添加在该文件中的配置将无效，并告诉我们正确的配置方法。http://www.cndba.cn/dave/article/1828

http://www.cndba.cn/dave/article/1828

[root@cndba.cn ~]# cat /etc/inittab
# inittab is no longer used when using systemd.
#
# ADDING CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM.
#
# Ctrl-Alt-Delete is handled by /usr/lib/systemd/system/ctrl-alt-del.target
#
# systemd uses 'targets' instead of runlevels. By default, there are two main targets:
#
# multi-user.target: analogous to runlevel 3
# graphical.target: analogous to runlevel 5
#
# To view current default target, run:
# systemctl get-default
#
# To set a default target, run:
# systemctl set-default TARGET.target
#

修改系统为图形界面启动：http://www.cndba.cn/dave/article/1828

http://www.cndba.cn/dave/article/1828

[root@cndba.cn ~]# systemctl set-default graphical.target
Removed symlink /etc/systemd/system/default.target.
Created symlink from /etc/systemd/system/default.target to /usr/lib/systemd/system/graphical.target.

查看修改是否生效：

[root@cndba.cn ~]# systemctl get-default
graphical.target

http://www.cndba.cn/dave/article/1828

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Redhat 7