LDP/LDP/guide/docbook/PLD-Guide/admin-manual/sysconfig.xml

  <chapter>
    <title>System configuration</title>
    <section>
      <title>Kernel modules</title>
      <para>
	Kernel modules configuration is stored in <filename>/etc/modules.conf</filename>.
	Some common examples:</para>
      <para>
	Use kernel module <literal>3c509</literal> (3Com 509/509b adapter) to handle first ethernet 
	device (eth0):
	<programlisting>alias eth0 3c509</programlisting>
	
	Use kernel module <literal>aic7xxx</literal> to handle SCSI hostadapter:
	<programlisting>alias scsi_hostadapter aic7xxx</programlisting>
      </para>
      <para>	  
	See <citerefentry><refentrytitle>modules.conf</refentrytitle></citerefentry>for details.
      </para>
    </section>
    <section>
      <title>Disks</title>
      <para>
      </para>
      <literallayout>
	fstab:
	disks 
	removable media: CD, diskettes etc
	user access
	automounter
      </literallayout>
    </section>
    <section id="inittab">
      <title>Init control: /etc/inittab</title>
      <para>
	This file is read by <command>init</command> to control
	behaviour in particular runlevel.
	What it usually contains is:
	<itemizedlist>
	  <listitem>
	    <para>
	      <emphasis>Default runlevel</emphasis> - the runlevel used
	      when init is invoked without parameters (e.g. during system startup).
	      (runlevels are described in <xref linkend="runlevels"/>),
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      Instructions to start consoles. 
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      Invocation of proper init scripts.
	    </para>
	  </listitem>
	  <listitem>
	    <para>
	      Handling special events like Ctrl-Alt-Del keystroke.
	    </para>
	  </listitem>
	</itemizedlist>
      </para>
    </section>
    <section>
      <title>Basic system configuration: <filename>/etc/sysconfig</filename></title>
      <section>
	<title>Intro</title>
	<para>
	  Directory <filename>/etc/sysconfig</filename> contains several files
	  that are used by rc-scripts (system startup scripts located in 
	  /etc/rc.d). Those files defines basic properties of the system.
	</para>
      </section>
      <section>
	<title>console</title>
	<para>
	  File <filename>/etc/sysconfig/console</filename>
	  contains basic console settings.
	</para>
	<para>
	  After modyfying config file, issue 
	  <programlisting>/etc/rc.d/init.d/console restart</programlisting>
	  if you want the changes to take effect.
	</para>
      </section>
      <section>
	<title>mouse</title>
	<para>
	  File <filename>/etc/sysconfig/mouse</filename> contains
	  mouse settings for service <command>gpm</command> (General Purpose Mouse).
	  This service provides mouse support for console based
	  applications and may be also used by X Window System.
	  <!--  (see <xref linkend="x-repeater"/>) -->
	</para>
	<para>
	  After modyfying config file, issue 
	  <programlisting>/etc/rc.d/init.d/gpm restart</programlisting>
	  if you want the changes to take effect.
	</para>
      </section>

      <section>
	<title>clock</title>
	<para>
	  File <filename>/etc/sysconfig/clock</filename> contains
	  clock settings.
	  Its content is used by /etc/rc.d/rc.sysinit script
	  at very early stage of system bootup.
	  This file contains very general clock properties.
	  Setting clock can be done with <command>date</command>
	  and <command>hwclock</command> commands.
	</para>
      </section>
      <section>
	<title>system</title>
	<para>
	  Its content is used by rc-scripts at very early stage of system bootup.
	  It contains some very basic like system behaviour in case of kernel
	  panic, etc.
	</para>
      </section>
    </section>

    <section>
      <title>Printing</title>
      <para>
      </para>
    </section>
    <section>
      <title>X Window</title>
      <para>
      </para>
    </section>
  </chapter>


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