Go to TogaWare.com Home Page. GNU/Linux Desktop Survival Guide
by Graham Williams
Duck Duck Go



CLICK HERE TO VISIT THE UPDATED SURVIVAL GUIDE

Initialisations on Booting

The Debian GNU/Linux kernel loads init very early on in the boot process, using /etc/inittab as its configuration file. This file defines the default run level and what should be done for each run level.

If you have a look at the processes running on your system (with the command line ps or with the graphical Gnome utility gtop) you will see that the init process has process identifier of 1 (unless you are running a more secure GNU/Linux where random numbers are assigned to the processes).

The initialisation table (/etc/inittab) is where system initialisations occur. This table consists of records with four fields separated by a colon:

  id:runlevels:action:process

The first field is an identifier. The second lists the runlevels for which this record is relevant. The third is the action to be performed. The fourth is the command to be run.

In this chapter we look at how the GNU/Linux system is initialised. See Chapter 12 for an explanation of the boot process and how to control booting.


Subsections
Support further development by purchasing the PDF version of the book.
Other online resources include the Data Science Desktop Survival Guide.
Books available on Amazon include Data Mining with Rattle and Essentials of Data Science.
Popular open source software includes rattle and wajig.
Hosted by Togaware, a pioneer of free and open source software since 1984.
Copyright © 1995-2020 Togaware Pty Ltd. Creative Commons ShareAlike V4.