diff options
Diffstat (limited to 'doc/apt.conf.5.xml')
| -rw-r--r-- | doc/apt.conf.5.xml | 39 |
1 files changed, 34 insertions, 5 deletions
diff --git a/doc/apt.conf.5.xml b/doc/apt.conf.5.xml index d7ad51cfb..e568baa35 100644 --- a/doc/apt.conf.5.xml +++ b/doc/apt.conf.5.xml @@ -142,7 +142,7 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; <listitem><para>Default release to install packages from if more than one version available. Contains release name, codename or release version. Examples: 'stable', 'testing', 'unstable', 'lenny', 'squeeze', '4.0', '5.0*'. See also &apt-preferences;.</para></listitem> </varlistentry> - + <varlistentry><term>Ignore-Hold</term> <listitem><para>Ignore Held packages; This global option causes the problem resolver to ignore held packages in its decision making.</para></listitem> @@ -166,10 +166,10 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; longer guaranteed to work as their dependency on A is not longer satisfied. The immediate configuration marker is also applied to all dependencies which can generate a problem if the dependencies e.g. form a circle as a dependency with the immediate flag is comparable with a Pre-Dependency. So in theory it is possible - that APT encounters a situation in which it is unable to perform immediate configuration, error out and - refers to this option so the user can deactivate the immediate configuration temporary to be able to perform + that APT encounters a situation in which it is unable to perform immediate configuration, errors out and + refers to this option so the user can deactivate the immediate configuration temporarily to be able to perform an install/upgrade again. Note the use of the word "theory" here as this problem was only encountered by now - in real world a few times in non-stable distribution versions and caused by wrong dependencies of the package + in real world a few times in non-stable distribution versions and was caused by wrong dependencies of the package in question or by a system in an already broken state, so you should not blindly disable this option as the mentioned scenario above is not the only problem immediate configuration can help to prevent in the first place. Before a big operation like <literal>dist-upgrade</literal> is run with this option disabled it should be tried to @@ -221,7 +221,14 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; <varlistentry><term>PDiffs</term> <listitem><para>Try to download deltas called <literal>PDiffs</literal> for Packages or Sources files instead of downloading whole ones. True - by default.</para></listitem> + by default.</para> + <para>Two sub-options to limit the use of PDiffs are also available: + With <literal>FileLimit</literal> can be specified how many PDiff files + are downloaded at most to patch a file. <literal>SizeLimit</literal> + on the other hand is the maximum precentage of the size of all patches + compared to the size of the targeted file. If one of these limits is + exceeded the complete file is downloaded instead of the patches. + </para></listitem> </varlistentry> <varlistentry><term>Queue-Mode</term> @@ -392,6 +399,27 @@ DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt";}; these warnings are most of the time false negatives. Future versions will maybe include a way to really prefer uncompressed files to support the usage of local mirrors.</para></listitem> </varlistentry> + + <varlistentry><term>Languages</term> + <listitem><para>The Languages subsection controls which <filename>Translation</filename> files are downloaded + and in which order APT tries to display the Description-Translations. APT will try to display the first + available Description in the Language which is listed at first. Languages can be defined with their + short or long Languagecodes. Note that not all archives provide <filename>Translation</filename> + files for every Language - especially the long Languagecodes are rare, so please + inform you which ones are available before you set here impossible values.</para> + <para>The default list includes "environment" and "en". "<literal>environment</literal>" has a special meaning here: + It will be replaced at runtime with the languagecodes extracted from the <literal>LC_MESSAGES</literal> environment variable. + It will also ensure that these codes are not included twice in the list. If <literal>LC_MESSAGES</literal> + is set to "C" only the <filename>Translation-en</filename> file (if available) will be used. + To force apt to use no Translation file use the setting <literal>Acquire::Languages=none</literal>. "<literal>none</literal>" + is another special meaning code which will stop the search for a fitting <filename>Translation</filename> file. + This can be used by the system administrator to let APT know that it should download also this files without + actually use them if the environment doesn't specify this languages. So the following example configuration will + result in the order "en, de" in an english and in "de, en" in a german localization. Note that "fr" is downloaded, + but not used if APT is not used in a french localization, in such an environment the order would be "fr, de, en". + <programlisting>Acquire::Languages { "environment"; "de"; "en"; "none"; "fr"; };</programlisting></para></listitem> + </varlistentry> + </variablelist> </para> </refsect1> @@ -983,6 +1011,7 @@ is commented. </listitem> </varlistentry> --> + </variablelist> </refsect1> |