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Adnan
Asked: 2010-06-03 04:09:06 +0800 CST

How to change default runlevel of Ubuntu (lucid)?

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I have Ubuntu lucid on my home computer. Today I was experimenting with runlevels and I couldn't figure out how to change the default run level of Ubuntu. I can do that using /etc/inittab on Debian 504 but that file is not there in Ubuntu. I have searched on the web but couldn't figure out the answer.

Thanks in advance.

ubuntu runlevel

2 Answers

  1. Best Answer

    As per man inittab:

    The  /etc/inittab  file was the configuration file used by the original
System V init(8) daemon.

The Upstart init(8) daemon does not use this file,  and  instead  reads
its  configuration  from  files  in  /etc/init.   See  init(5) for more
details.

    If you look into /etc/init/rc-sysinit.conf you should find a line similar to this:

    # Default runlevel, this may be overriden on the kernel command-line
# or by faking an old /etc/inittab entry
env DEFAULT_RUNLEVEL=2

    Either change this or use manually generated /etc/inittab.

    • 10

  2. Ubuntu uses the upstart init daemon which by default boots to (an equivalent of?) runlevel 2. If you want to change the default runlevel then create an /etc/inittab with an initdefault entry for the runlevel you want.

    :id:3:initdefault:

    would bring the system up to runlevel 3.

    An article on it here

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