Merge pull request #8822 from fbuihuu/rfc-tmpfiles-safe-upstream

[thirdparty/systemd.git] / man / systemd-firstboot.xml

<?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">

<!--
  SPDX-License-Identifier: LGPL-2.1+
-->

<refentry id="systemd-firstboot" conditional='ENABLE_FIRSTBOOT'
    xmlns:xi="http://www.w3.org/2001/XInclude">

  <refentryinfo>
    <title>systemd-firstboot</title>
    <productname>systemd</productname>
  </refentryinfo>

  <refmeta>
    <refentrytitle>systemd-firstboot</refentrytitle>
    <manvolnum>1</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>systemd-firstboot</refname>
    <refname>systemd-firstboot.service</refname>
    <refpurpose>Initialize basic system settings on or before the first boot-up of a system</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis>
      <command>systemd-firstboot</command>
      <arg choice="opt" rep="repeat">OPTIONS</arg>
    </cmdsynopsis>

    <para><filename>systemd-firstboot.service</filename></para>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para><command>systemd-firstboot</command> initializes the most
    basic system settings interactively on the first boot, or
    optionally non-interactively when a system image is created.
    The service is started if <varname>ConditionFirstBoot=yes</varname>
    is satisfied. This essentially means that <filename>/etc</filename>
    is empty, see
    <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
    for details.</para>

    <para>The following settings may be set up:</para>

    <itemizedlist>
      <listitem><para>The system locale, more specifically the two
      locale variables <varname>LANG=</varname> and
      <varname>LC_MESSAGES</varname></para></listitem>

      <listitem><para>The system keyboard map</para></listitem>

      <listitem><para>The system time zone</para></listitem>

      <listitem><para>The system host name</para></listitem>

      <listitem><para>The machine ID of the system</para></listitem>

      <listitem><para>The root user's password</para></listitem>
    </itemizedlist>

    <para>Each of the fields may either be queried interactively by
    users, set non-interactively on the tool's command line, or be
    copied from a host system that is used to set up the system
    image.</para>

    <para>If a setting is already initialized, it will not be
    overwritten and the user will not be prompted for the
    setting.</para>

    <para>Note that this tool operates directly on the file system and
    does not involve any running system services, unlike
    <citerefentry project='man-pages'><refentrytitle>localectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
    <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
    or
    <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
    This allows <command>systemd-firstboot</command> to operate on
    mounted but not booted disk images and in early boot. It is not
    recommended to use <command>systemd-firstboot</command> on the
    running system while it is up.</para>
  </refsect1>

  <refsect1>
    <title>Options</title>

    <para>The following options are understood:</para>

    <variablelist>
      <varlistentry>
        <term><option>--root=<replaceable>root</replaceable></option></term>
        <listitem><para>Takes a directory path as an argument. All
        paths will be prefixed with the given alternate
        <replaceable>root</replaceable> path, including config search
        paths. This is useful to operate on a system image mounted to
        the specified directory instead of the host system itself.
        </para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--locale=<replaceable>LOCALE</replaceable></option></term>
        <term><option>--locale-messages=<replaceable>LOCALE</replaceable></option></term>

        <listitem><para>Sets the system locale, more specifically the
        <varname>LANG=</varname> and <varname>LC_MESSAGES</varname>
        settings. The argument should be a valid locale identifier,
        such as <literal>de_DE.UTF-8</literal>. This controls the
        <citerefentry project='man-pages'><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
        configuration file.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--keymap=<replaceable>KEYMAP</replaceable></option></term>

        <listitem><para>Sets the system keyboard layout. The argument should be a valid keyboard map,
        such as <literal>de-latin1</literal>. This controls the <literal>KEYMAP</literal> entry in the
        <citerefentry project='man-pages'><refentrytitle>vconsole.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
        configuration file.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--timezone=<replaceable>TIMEZONE</replaceable></option></term>

        <listitem><para>Sets the system time zone. The argument should
        be a valid time zone identifier, such as
        <literal>Europe/Berlin</literal>. This controls the
        <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>
        symlink.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--hostname=<replaceable>HOSTNAME</replaceable></option></term>

        <listitem><para>Sets the system hostname. The argument should
        be a host name, compatible with DNS. This controls the
        <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>
        configuration file.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--machine-id=<replaceable>ID</replaceable></option></term>

        <listitem><para>Sets the system's machine ID. This controls
        the
        <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>
        file.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--root-password=<replaceable>PASSWORD</replaceable></option></term>
        <term><option>--root-password-file=<replaceable>PATH</replaceable></option></term>

        <listitem><para>Sets the password of the system's root user.
        This creates a
        <citerefentry project='die-net'><refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum></citerefentry>
        file. This setting exists in two forms:
        <option>--root-password=</option> accepts the password to set
        directly on the command line, and
        <option>--root-password-file=</option> reads it from a file.
        Note that it is not recommended to specify passwords on the
        command line, as other users might be able to see them simply
        by invoking
        <citerefentry project='die-net'><refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--prompt-locale</option></term>
        <term><option>--prompt-keymap</option></term>
        <term><option>--prompt-timezone</option></term>
        <term><option>--prompt-hostname</option></term>
        <term><option>--prompt-root-password</option></term>

        <listitem><para>Prompt the user interactively for a specific
        basic setting. Note that any explicit configuration settings
        specified on the command line take precedence, and the user is
        not prompted for it.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--prompt</option></term>

        <listitem><para>Query the user for locale, keymap, timezone, hostname
        and root password. This is equivalent to specifying
        <option>--prompt-locale</option>,
        <option>--prompt-keymap</option>,
        <option>--prompt-timezone</option>,
        <option>--prompt-hostname</option>,
        <option>--prompt-root-password</option> in combination.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--copy-locale</option></term>
        <term><option>--copy-keymap</option></term>
        <term><option>--copy-timezone</option></term>
        <term><option>--copy-root-password</option></term>

        <listitem><para>Copy a specific basic setting from the host.
        This only works in combination with <option>--root=</option>
        (see above).</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--copy</option></term>

        <listitem><para>Copy locale, keymap, time zone and root password from
        the host. This is equivalent to specifying
        <option>--copy-locale</option>,
        <option>--copy-keymap</option>,
        <option>--copy-timezone</option>,
        <option>--copy-root-password</option> in combination.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--setup-machine-id</option></term>

        <listitem><para>Initialize the system's machine ID to a random
        ID. This only works in combination with
        <option>--root=</option>.</para></listitem>
      </varlistentry>

      <xi:include href="standard-options.xml" xpointer="help" />
      <xi:include href="standard-options.xml" xpointer="version" />
    </variablelist>

  </refsect1>

  <refsect1>
    <title>Exit status</title>

    <para>On success, 0 is returned, a non-zero failure code
    otherwise.</para>
  </refsect1>

  <refsect1>
    <title>Kernel Command Line</title>

    <variablelist class='kernel-commandline-options'>
      <varlistentry>
        <term><varname>systemd.firstboot=</varname></term>

        <listitem><para>Takes a boolean argument, defaults to on. If off, <filename>systemd-firstboot.service</filename>
        won't interactively query the user for basic settings at first boot, even if those settings are not
        initialized yet.</para></listitem>
      </varlistentry>
    </variablelist>
  </refsect1>

  <refsect1>
    <title>See Also</title>
    <para>
      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry project='man-pages'><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry project='man-pages'><refentrytitle>vconsole.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry project='die-net'><refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd-machine-id-setup</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry project='man-pages'><refentrytitle>localectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
    </para>
  </refsect1>

</refentry>