在大多数的linux发行版本中,通常有8个 runlevel
Runlevel System State
0 Halt the system
1 Single user mode
2 Basic multi user mode
3 Multi user mode
5 Multi user mode with GUI
6 Reboot the system
S, s Single user mode
可以在文件 /etc/inittab 中查看
[iyunv@wode003 ~]# cat/etc/inittab -bash: cat/etc/inittab: 没有那个文件或目录 [iyunv@wode003 ~]# 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 #
// get-default
[iyunv@wode003 ~]# systemctl get-default graphical.target
// set-default
[iyunv@wode003 ~]# systemctl set-default multi-user.target rm '/etc/systemd/system/default.target' ln -s '/usr/lib/systemd/system/multi-user.target' '/etc/systemd/system/default.target' [iyunv@wode003 ~]# systemctl get-default multi-user.target [iyunv@wode003 ~]#
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