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Diffstat (limited to 'man/os-release.xml')
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diff --git a/man/os-release.xml b/man/os-release.xml deleted file mode 100644 index 2811f434c5..0000000000 --- a/man/os-release.xml +++ /dev/null @@ -1,378 +0,0 @@ -<?xml version='1.0'?> <!--*-nxml-*--> -<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" - "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> - -<!-- - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. ---> - -<refentry id="os-release"> - <refentryinfo> - <title>os-release</title> - <productname>systemd</productname> - - <authorgroup> - <author> - <contrib>Developer</contrib> - <firstname>Lennart</firstname> - <surname>Poettering</surname> - <email>lennart@poettering.net</email> - </author> - </authorgroup> - </refentryinfo> - - <refmeta> - <refentrytitle>os-release</refentrytitle> - <manvolnum>5</manvolnum> - </refmeta> - - <refnamediv> - <refname>os-release</refname> - <refpurpose>Operating system identification</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <para><filename>/etc/os-release</filename></para> - <para><filename>/usr/lib/os-release</filename></para> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para>The <filename>/etc/os-release</filename> and - <filename>/usr/lib/os-release</filename> files contain operating - system identification data.</para> - - <para>The basic file format of <filename>os-release</filename> is - a newline-separated list of environment-like shell-compatible - variable assignments. It is possible to source the configuration - from shell scripts, however, beyond mere variable assignments, no - shell features are supported (this means variable expansion is - explicitly not supported), allowing applications to read the file - without implementing a shell compatible execution engine. Variable - assignment values must be enclosed in double or single quotes if - they include spaces, semicolons or other special characters - outside of A–Z, a–z, 0–9. Shell special characters ("$", quotes, - backslash, backtick) must be escaped with backslashes, following - shell style. All strings should be in UTF-8 format, and - non-printable characters should not be used. It is not supported - to concatenate multiple individually quoted strings. Lines - beginning with "#" shall be ignored as comments.</para> - - <para>The file <filename>/etc/os-release</filename> takes - precedence over <filename>/usr/lib/os-release</filename>. - Applications should check for the former, and exclusively use its - data if it exists, and only fall back to - <filename>/usr/lib/os-release</filename> if it is missing. - Applications should not read data from both files at the same - time. <filename>/usr/lib/os-release</filename> is the recommended - place to store OS release information as part of vendor trees. - <filename>/etc/os-release</filename> should be a relative symlink - to <filename>/usr/lib/os-release</filename>, to provide - compatibility with applications only looking at - <filename>/etc</filename>. A relative symlink instead of an - absolute symlink is necessary to avoid breaking the link in a - chroot or initrd environment such as dracut.</para> - - <para><filename>os-release</filename> contains data that is - defined by the operating system vendor and should generally not be - changed by the administrator.</para> - - <para>As this file only encodes names and identifiers it should - not be localized.</para> - - <para>The <filename>/etc/os-release</filename> and - <filename>/usr/lib/os-release</filename> files might be symlinks - to other files, but it is important that the file is available - from earliest boot on, and hence must be located on the root file - system.</para> - - <para>For a longer rationale for <filename>os-release</filename> - please refer to the <ulink - url="http://0pointer.de/blog/projects/os-release">Announcement of <filename>/etc/os-release</filename></ulink>.</para> - </refsect1> - - <refsect1> - <title>Options</title> - - <para>The following OS identifications parameters may be set using - <filename>os-release</filename>:</para> - - <variablelist> - - <varlistentry> - <term><varname>NAME=</varname></term> - - <listitem><para>A string identifying the operating system, - without a version component, and suitable for presentation to - the user. If not set, defaults to - <literal>NAME=GNU/Linux</literal>. Example: - <literal>NAME=BLAG</literal> or <literal>NAME="gNewSense - GNU/Linux"</literal>.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>VERSION=</varname></term> - - <listitem><para>A string identifying the operating system - version, excluding any OS name information, possibly including - a release code name, and suitable for presentation to the - user. This field is optional. Example: - <literal>VERSION=210k</literal> or <literal>VERSION="210k - (Spartakus)"</literal>.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>ID=</varname></term> - - <listitem><para>A lower-case string (no spaces or other - characters outside of 0–9, a–z, ".", "_" and "-") identifying - the operating system, excluding any version information and - suitable for processing by scripts or usage in generated - filenames. If not set, defaults to - <literal>ID=gnu-linux</literal>. Example: - <literal>ID=blag</literal> or - <literal>ID=gnewsense</literal>.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>ID_LIKE=</varname></term> - - <listitem><para>A space-separated list of operating system - identifiers in the same syntax as the <varname>ID=</varname> - setting. It should list identifiers of operating systems that - are closely related to the local operating system in regards - to packaging and programming interfaces, for example listing - one or more OS identifiers the local OS is a derivative from. - An OS should generally only list other OS identifiers it - itself is a derivative of, and not any OSes that are derived - from it, though symmetric relationships are possible. Build - scripts and similar should check this variable if they need to - identify the local operating system and the value of - <varname>ID=</varname> is not recognized. Operating systems - should be listed in order of how closely the local operating - system relates to the listed ones, starting with the closest. - This field is optional. Example: for an operating system with - <literal>ID=blag</literal>, an assignment of - <literal>ID_LIKE="rhel fedora"</literal> would be appropriate. - For an operating system with <literal>ID=gnewsense</literal>, an - assignment of <literal>ID_LIKE=debian</literal> is - appropriate.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>VERSION_CODENAME=</varname></term> - - <listitem><para> - A lower-case string (no spaces or other characters outside of - 0–9, a–z, ".", "_" and "-") identifying the operating system - release code name, excluding any OS name information or - release version, and suitable for processing by scripts or - usage in generated filenames. This field is optional and may - not be implemented on all systems. - Examples: - <literal>VERSION_CODENAME=buster</literal>, - <literal>VERSION_CODENAME=xenial</literal> - </para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>VERSION_ID=</varname></term> - - <listitem><para>A lower-case string (mostly numeric, no spaces - or other characters outside of 0–9, a–z, ".", "_" and "-") - identifying the operating system version, excluding any OS - name information or release code name, and suitable for - processing by scripts or usage in generated filenames. This - field is optional. Example: <literal>VERSION_ID=210k</literal> - or <literal>VERSION_ID=7.0</literal>.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>PRETTY_NAME=</varname></term> - - <listitem><para>A pretty operating system name in a format - suitable for presentation to the user. May or may not contain - a release code name or OS version of some kind, as suitable. - If not set, defaults to - <literal>PRETTY_NAME="GNU/Linux"</literal>. Example: - <literal>PRETTY_NAME="BLAG 210k - (Spartakus)"</literal>.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>ANSI_COLOR=</varname></term> - - <listitem><para>A suggested presentation color when showing - the OS name on the console. This should be specified as string - suitable for inclusion in the ESC [ m ANSI/ECMA-48 escape code - for setting graphical rendition. This field is optional. - Example: <literal>ANSI_COLOR="0;31"</literal> for red, or - <literal>ANSI_COLOR="1;34"</literal> for light - blue.</para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>CPE_NAME=</varname></term> - - <listitem><para>A CPE name for the operating system, in URI - binding syntax, following the - <ulink url="http://scap.nist.gov/specifications/cpe/">Common - Platform Enumeration Specification</ulink> as proposed by the - NIST. This field is optional. Example: - <literal>CPE_NAME="cpe:/o:blagblagblag:blag:210k"</literal> - </para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>HOME_URL=</varname></term> - <term><varname>SUPPORT_URL=</varname></term> - <term><varname>BUG_REPORT_URL=</varname></term> - <term><varname>PRIVACY_POLICY_URL=</varname></term> - - <listitem><para>Links to resources on the Internet related the - operating system. <varname>HOME_URL=</varname> should refer to - the homepage of the operating system, or alternatively some - homepage of the specific version of the operating system. - <varname>SUPPORT_URL=</varname> should refer to the main - support page for the operating system, if there is any. This - is primarily intended for operating systems which vendors - provide support for. <varname>BUG_REPORT_URL=</varname> should - refer to the main bug reporting page for the operating system, - if there is any. This is primarily intended for operating - systems that rely on community QA. - <varname>PRIVACY_POLICY_URL=</varname> should refer to the - main privacy policy page for the operation system, if there is - any. These settings are optional, and providing only some of - these settings is common. These URLs are intended to be - exposed in "About this system" UIs behind links with captions - such as "About this Operating System", "Obtain Support", - "Report a Bug", or "Privacy Policy". The values should be in - <ulink url="https://tools.ietf.org/html/rfc3986">RFC3986 - format</ulink>, and should be <literal>http:</literal> or - <literal>https:</literal> URLs, and possibly - <literal>mailto:</literal> or <literal>tel:</literal>. Only - one URL shall be listed in each setting. If multiple resources - need to be referenced, it is recommended to provide an online - landing page linking all available resources. Examples: - <literal>HOME_URL="https://www.blagblagblag.org/"</literal> and - <literal>BUG_REPORT_URL="https://blag.fsf.org/"</literal></para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>BUILD_ID=</varname></term> - - <listitem><para>A string uniquely identifying the system image - used as the origin for a distribution (it is not updated with - system updates). The field can be identical between different - VERSION_IDs as BUILD_ID is an only a unique identifier to a - specific version. Distributions that release each update as a - new version would only need to use VERSION_ID as each build is - already distinct based on the VERSION_ID. This field is - optional. Example: <literal>BUILD_ID="2013-03-20.3"</literal> - or <literal>BUILD_ID=201303203</literal>. - - </para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>VARIANT=</varname></term> - - <listitem><para> - A string identifying a specific variant or edition of the - operating system suitable for presentation to the user. This - field may be used to inform the user that the configuration of - this system is subject to a specific divergent set of rules or - default configuration settings. This field is optional and may - not be implemented on all systems. - Examples: - <literal>VARIANT="Server Edition"</literal>, - <literal>VARIANT="Smart Refrigerator Edition"</literal> - Note: this field is for display purposes only. The - <varname>VARIANT_ID</varname> field should be used for making - programmatic decisions. - </para></listitem> - </varlistentry> - - <varlistentry> - <term><varname>VARIANT_ID=</varname></term> - - <listitem><para> - A lower-case string (no spaces or other characters outside of - 0–9, a–z, ".", "_" and "-"), identifying a specific variant or - edition of the operating system. This may be interpreted by - other packages in order to determine a divergent default - configuration. This field is optional and may not be - implemented on all systems. - Examples: - <literal>VARIANT_ID=server</literal>, - <literal>VARIANT_ID=embedded</literal> - </para></listitem> - </varlistentry> - - </variablelist> - - <para>If you are reading this file from C code or a shell script - to determine the OS or a specific version of it, use the - <varname>ID</varname> and <varname>VERSION_ID</varname> fields, - possibly with <varname>ID_LIKE</varname> as fallback for - <varname>ID</varname>. When looking for an OS identification - string for presentation to the user use the - <varname>PRETTY_NAME</varname> field.</para> - - <para>Note that operating system vendors may choose not to provide - version information, for example to accommodate for rolling - releases. In this case, <varname>VERSION</varname> and - <varname>VERSION_ID</varname> may be unset. Applications should - not rely on these fields to be set.</para> - - <para>Operating system vendors may extend the file - format and introduce new fields. It is highly - recommended to prefix new fields with an OS specific - name in order to avoid name clashes. Applications - reading this file must ignore unknown fields. Example: - <literal>DEBIAN_BTS="debbugs://bugs.gnewsense.org/"</literal></para> - </refsect1> - - <refsect1> - <title>Example</title> - - <programlisting>NAME=Parabola -VERSION="rolling-release" -ID=parabola -ID_LIKE=arch -VERSION_ID=rolling-release -PRETTY_NAME="Parabola GNU/Linux-libre" -ANSI_COLOR="1;35" -CPE_NAME="cpe:/o:parabola:parabola:rolling-release" -HOME_URL="https://www.parabola.nu/" -BUG_REPORT_URL="https://labs.parabola.nu/"</programlisting> - </refsect1> - - <refsect1> - <title>See Also</title> - <para> - <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry project='die-net'><refentrytitle>lsb_release</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry> - </para> - </refsect1> - -</refentry> |