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I use Ubuntu as a server, and I want to change its runlevel to be full multi-user text mode (like init 3 in RedHat).

From this command runlevel i see that am running N 2 which is Graphical multi-user with networking based on this http://en.wikipedia.org/wiki/Runlevel

So I'm wondering, is "1- Single-user mode" in Ubuntu the equivalent for "3- Full multi-user text mode" in RedHat?

Michael Miller
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Shadin
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  • To people passing by: time has passed and Ubuntu has switched to systemd, see http://askubuntu.com/questions/788323/change-runlevel-on-16-04 for an updated question and answer. – Stéphane Gourichon Mar 18 '17 at 20:58

1 Answers1

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The short answer is no. Ubuntu uses Upstart as its init daemon. Upstart does handle runlevels and legacy init-style scripts for backwards compatibility, but most boot processes installed by Ubuntu itself are Upstart jobs. Upstart jobs do not start and stop on numbered runlevels like traditional init scripts do.

However, on a Red Hat system, the primary difference between runlevel 3 (multi-user text mode) and runlevel 5 (graphical desktop login) is whether gdm is running. So to approximate Red Hat's runlevel 3 on Ubuntu, the lightdm login manager can be either uninstalled or disabled.

Uninstall lightdm with

sudo apt-get purge lightdm

or disable the lightdm upstart job following the instructions in this answer.

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Michael Miller
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