上网查询CentOS设置开机直接进入命令行界面的方法都说修改/etc/inittab文件,将文件中的“ :id:5:initdefault:”改为“ :id:3:initdefault:”,即将默认的runlevel由5改为3,但在CentOS7下打开/etc/inittab页面显示如下:# 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 #提示说inittab文件已经不被使用,现在CentOS7使用systemd作为新的init系统,而systemd系统使用“target”来代替“runlevel”,默认有两个主要的target:multi-user.target:相当于runlevel 3[命令行界面],graphical.target:相当于runlevel 5[图形界面]设置默认的target则使用命令:ln -sf /lib/systemd/system/<target name>.target /etc/systemd/system/default.target我这里要将CentOS7开机默认进入命令行界面,则运行命令:# ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target更多CentOS相关信息见CentOS 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=14本文永久更新链接地址