RHEL/CentOS 7 버전에서 runlevel 변경하기

이전 버전에선 /etc/inittab 에서 아래 id:5:initdefault: 부분의 숫자를 변경해주면 변경가능

 

[root@python ~]# 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:5:initdefault:
~
~

 

하지만 7버전대 와서는 init을 쓰지 않게 되면서 파일 내용이 아래와 같이 변경

결론은 아래 파일을 보고 systemctl 명령어로 runlevel을 변경하면 됨

# systemctl get-default   // 현재 runlevel을 보여주기

# systemctl set-default multi-user.target   // 멀티유저(runlevel 3)으로 변경

# systemctl set-default graphical.target   // 그래피컬(runlevel 5)로 변경

 

 

[root@localhost etc]# cat 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
#