Linux启动时更改运行级别

一、Linux启动时配置运行级别

1、在系统启动的时候 按“e”

Linux启动时更改运行级别_第1张图片

 

2、点击“e”进入GRUB页面

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3、选择第二个“kernel”,点击“e” 进入

Linux启动时更改运行级别_第3张图片

 

4、在命令的最后一行添加 运行级别,上图是运行级别 3,点击回车保存修改,再点击“b”重新引导

 

二、配置默认运行级别

 

编辑/etc/inittab文件的最后一行

[root@freeswitch ~]# vi /etc/inittab
# inittab is only used by upstart for the default runlevel.
#
# ADDING OTHER CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM.
#
# System initialization is started by /etc/init/rcS.conf
#
# Individual runlevels are started by /etc/init/rc.conf
#
# Ctrl-Alt-Delete is handled by /etc/init/control-alt-delete.conf
#
# Terminal gettys are handled by /etc/init/tty.conf and /etc/init/serial.conf,
# with configuration in /etc/sysconfig/init.
#
# For information on how to write upstart event handlers, or how
# upstart works, see init(5), init(8), and initctl(8).
#
# Default runlevel. The runlevels used are:
#   0 - halt (Do NOT set initdefault to this)
#   1 - Single user mode
#   2 - Multiuser, without NFS (The same as 3, if you do not have networking)
#   3 - Full multiuser mode
#   4 - unused
#   5 - X11
#   6 - reboot (Do NOT set initdefault to this)
#
id:3:initdefault:

备注:最后一行的3表示是多用户模式,即没有界面但是允许多用户访问的模式。 

 

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