115 lines
4.5 KiB
XML
115 lines
4.5 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-machine-id-setup">
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<refentryinfo>
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<title>systemd-machine-id-setup</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-machine-id-setup</refentrytitle>
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<manvolnum>1</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-machine-id-setup</refname>
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<refpurpose>Initialize the machine ID in <filename>/etc/machine-id</filename></refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>systemd-machine-id-setup</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>systemd-machine-id-setup</command> may
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be used by system installer tools to initialize the
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machine ID stored in
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<filename>/etc/machine-id</filename> at install time
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with a randomly generated ID. See
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for more information about this file.</para>
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<para>This tool will execute no operation if
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<filename>/etc/machine-id</filename> is already
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initialized.</para>
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<para>If a valid D-Bus machine ID is already
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configured for the system the D-Bus machine ID is
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copied and used to initialize the machine ID in
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<filename>/etc/machine-id</filename>.</para>
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<para>If run inside a KVM virtual machine and a UUID
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is passed via the <option>-uuid</option> option this
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UUID is used to initialize the machine ID instead of a
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randomly generated one. The caller must ensure that the
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UUID passed is sufficiently unique and is different
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for every booted instanced of the VM.</para>
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<para>Similar, if run inside a Linux container
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environment and a UUID is set for the container this
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is used to initialize the machine ID. For details see
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the documentation of the <ulink
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url="http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface">Container
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Interface</ulink>.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>This tool does not take any options or arguments.</para>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success 0 is returned, a non-zero failure
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code otherwise.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>dbus-uuidgen</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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