merged from lp:~donkult/apt/sid

3 files changed, 27 insertions, 2 deletions

diff --git a/doc/apt.conf.5.xml b/doc/apt.conf.5.xml
index 02de89f3b..2634c47a9 100644
--- a/doc/apt.conf.5.xml
+++ b/doc/apt.conf.5.xml
@@ -153,7 +153,15 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";};
      parsing package lists. The internal default is the architecture apt was 
      compiled for.</para></listitem>
      </varlistentry>
-     
+
+     <varlistentry><term>Architectures</term>
+     <listitem><para>All Architectures the system supports. Processors implementing the <literal>amd64</literal>
+     are e.g. also able to execute binaries compiled for <literal>i386</literal>; This list is use when fetching files and
+     parsing package lists. The internal default is always the native architecture (<literal>APT::Architecture</literal>)
+     and all foreign architectures it can retrieve by calling <command>dpkg --print-foreign-architectures</command>.
+     </para></listitem>
+     </varlistentry>
+
      <varlistentry><term>Default-Release</term>
      <listitem><para>Default release to install packages from if more than one
      version available. Contains release name, codename or release version. Examples: 'stable', 'testing',
diff --git a/doc/examples/configure-index b/doc/examples/configure-index
index 6884e06e3..27232d40b 100644
--- a/doc/examples/configure-index
+++ b/doc/examples/configure-index
@@ -23,6 +23,7 @@ quiet::NoUpdate "true"; // never update progress information - included in -q=1
 APT 
 {
   Architecture "i386";
+  Architectures { "amd64"; "armel"; };
   Build-Essential "build-essential";
 
   NeverAutoRemove  { "linux-image.*";  };  // packages that should never
diff --git a/doc/sources.list.5.xml b/doc/sources.list.5.xml
index 837f07683..fab125b4e 100644
--- a/doc/sources.list.5.xml
+++ b/doc/sources.list.5.xml
@@ -78,7 +78,7 @@
    <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. 
@@ -109,6 +109,17 @@
    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 through 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></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
@@ -206,6 +217,11 @@ deb http://security.debian.org/ &stable-codename;/updates main contrib non-free
    <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>