<para>The format for a <filename>sources.list</filename> entry using the
<literal>deb</literal> and <literal>deb-src</literal> types is:</para>
- <literallayout>deb uri distribution [component1] [component2] [...]</literallayout>
+ <literallayout>deb [ options ] uri distribution [component1] [component2] [...]</literallayout>
<para>The URI for the <literal>deb</literal> type must specify the base of the
Debian distribution, from which APT will find the information it needs.
simultaneous anonymous users. APT also parallelizes connections to
different hosts to more effectively deal with sites with low bandwidth.</para>
+ <para><literal>options</literal> is always optional and needs to be surounded by
+ square brackets. It can consist of multiple settings in the form
+ <literal><replaceable>setting</replaceable>=<replaceable>value</replaceable></literal>.
+ Multiple settings are separated by spaces. The following settings are supported by APT,
+ note though that unsupported settings will be ignored silently:
+ <itemizedlist><listitem><para><literal>arch=<replaceable>arch1</replaceable>,<replaceable>arch2</replaceable>,…</literal>
+ can be used to specify for which architectures packages information should
+ be downloaded. If this option is not set all architectures defined by the
+ <literal>APT::Architectures</literal> option will be downloaded.</para></listitem>
+ <listitem><para><literal>trusted=yes</literal> can be set to indicate that packages
+ from this source are always authenificated even if the <filename>Release</filename> file
+ is not signed or the signature can't be checked. This disables parts of &apt-secure;
+ and should therefore only be used in a local and trusted context. <literal>trusted=no</literal>
+ is the opposite which handles even correctly authenificated sources as not authenificated.</para></listitem>
+ </itemizedlist></para>
+
<para>It is important to list sources in order of preference, with the most
preferred source listed first. Typically this will result in sorting
by speed from fastest to slowest (CD-ROM followed by hosts on a local
<para>Source line for the above</para>
<literallayout>deb-src file:/home/jason/debian unstable main contrib non-free</literallayout>
+ <para>The first line gets package information for the architectures in <literal>APT::Architectures</literal>
+ while the second always retrieves <literal>amd64</literal> and <literal>armel</literal>.</para>
+ <literallayout>deb http://ftp.debian.org/debian &stable-codename; main
+deb [ arch=amd64,armel ] http://ftp.debian.org/debian &stable-codename; main</literallayout>
+
<para>Uses HTTP to access the archive at archive.debian.org, and uses only
the hamm/main area.</para>
<literallayout>deb http://archive.debian.org/debian-archive hamm main</literallayout>