</refsect1>
<refsect1><title>Environment</title>
- <variablelist>
+ <variablelist class='environment-variables'>
<varlistentry>
- <term><varname>UDEV_LOG=</varname></term>
+ <term><varname>$UDEV_LOG=</varname></term>
<listitem>
<para>Set the logging priority.</para>
</listitem>
</refsect1>
<refsect1><title>Kernel command line</title>
- <variablelist>
+ <variablelist class='kernel-commandline-options'>
<para>Parameters starting with "rd." will be read when
<command>systemd-udevd</command> is used in an initrd.</para>
<varlistentry>
non-working kernel modules.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>net.ifnames=</varname></term>
+ <listitem>
+ <para>Network interfaces are renamed to give them predictable names
+ when possible. It is enabled by default, specifying 0 disables it.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
+ <refsect1><title>Configuration file</title>
+ <para>udev expects its main configuration file at <filename>/etc/udev/udev.conf</filename>.
+ It consists of a set of variables allowing the user to override default udev values. All
+ empty lines or lines beginning with '#' are ignored. The following variables can be
+ set:</para>
+ <variablelist>
+ <varlistentry>
+ <term><varname>udev_log</varname></term>
+ <listitem>
+ <para>The logging priority. Valid values are the numerical syslog priorities
+ or their textual representations: <option>err</option>, <option>info</option>
+ and <option>debug</option>.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
<refsect1>
<title>See Also</title>
<para><citerefentry>