bootctl: add sd-boot support

[thirdparty/systemd.git] / man / bootctl.xml

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

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<refentry id="bootctl" conditional='ENABLE_EFI'
    xmlns:xi="http://www.w3.org/2001/XInclude">
  <refentryinfo>
    <title>bootctl</title>
    <productname>systemd</productname>

    <authorgroup>
      <author>
        <contrib>Developer</contrib>
        <firstname>Kay</firstname>
        <surname>Sievers</surname>
        <email>kay@vrfy.org</email>
      </author>
    </authorgroup>
  </refentryinfo>

  <refmeta>
    <refentrytitle>bootctl</refentrytitle>
    <manvolnum>1</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>bootctl</refname>
    <refpurpose>Control the firmware and boot manager settings</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis>
      <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>status</command>
    </cmdsynopsis>
    <cmdsynopsis>
      <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>update</command>
    </cmdsynopsis>
    <cmdsynopsis>
      <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>install</command>
    </cmdsynopsis>
    <cmdsynopsis>
      <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>remove</command>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para><command>bootctl</command> checks, updates,
    installs or removes the boot loader from the current
    system.</para>

    <para><command>bootctl status</command> checks and prints the
    currently installed versions of the boot loader binaries and the
    all current EFI boot variables.</para>

    <para><command>bootctl update</command> updates all installed
    versions of sd-boot, if the current version is newer than the
    version installed in the EFI system partition. This also includes
    the EFI default/fallback loader at /EFI/Boot/boot*.efi. An
    sd-boot entry in the EFI boot variables is created, if there
    is no current entry. A created entry will be added to the end of
    the boot order list.</para>

    <para><command>bootctl install</command> installs sd-boot into
    the EFI system partition. A copy of sd-boot will be stored as
    the EFI default/fallback loader at /EFI/Boot/boot*.efi. An sd-boot
    entry in the EFI boot variables is created and added to the top
    of the boot order list.</para>

    <para><command>bootctl remove</command> removes all installed
    versions of sd-boot from the EFI system partition, and removes
    sd-boot from the EFI boot variables.</para>

    <para>If no command is passed <command>status</command> is
    implied.</para>
  </refsect1>

  <refsect1>
    <title>Options</title>
    <para>The following options are understood:</para>

    <variablelist>
      <xi:include href="standard-options.xml" xpointer="help" />
      <xi:include href="standard-options.xml" xpointer="version" />
      <varlistentry>
        <term><option>--path</option></term>
        <listitem><para>Path to the EFI system partition. The default is /boot.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><option>--no-variables</option></term>
        <listitem><para>Do not touch the EFI boot variables.</para></listitem>
      </varlistentry>
    </variablelist>
  </refsect1>

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

  <refsect1>
    <title>See Also</title>
    <para>
      <ulink url="http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>
      <ulink url="http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface">Systemd boot loader interface</ulink>
    </para>
  </refsect1>
</refentry>