centos文本模式与界面模式默认运行修改

centos7中，/etc/inittab发现熟悉的inittab：

[root@localhost init.d]# vi /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 /etc/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 set a default target, run:

#

# ln -sf /lib/systemd/system/<target name>.target /etc/systemd/system/default.target

已经说明了systemd取代了inittab；

中间没有了熟悉的 id:5:initdefault ： 启动图形界面；

Rcentos7中使用systemd创建符号链接指向默认运行级别。

修改方法为：

1.首先删除已经存在的符号链接

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rm /etc/systemd/system/default.target

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2.默认级别转换为3(文本模式)

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ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target

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或者默认级别转换为5(图形模式)

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ln -sf /lib/systemd/system/graphical.target /etc/systemd/system/default.target

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3.重启

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reboot

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