<?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 2013 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="systemd-gpt-auto-generator"> <refentryinfo> <title>systemd-gpt-auto-generator</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>systemd-gpt-auto-generator</refentrytitle> <manvolnum>8</manvolnum> </refmeta> <refnamediv> <refname>systemd-gpt-auto-generator</refname> <refpurpose>Generator for automatically discovering and mounting <filename>/home</filename> and <filename>/srv</filename>, as well as discovering and enabling swap partitions, based on GPT partition type GUIDs.</refpurpose> </refnamediv> <refsynopsisdiv> <para><filename>/usr/lib/systemd/system-generators/systemd-gpt-auto-generator</filename></para> </refsynopsisdiv> <refsect1> <title>Description</title> <para><filename>systemd-gpt-auto-generator</filename> is a unit generator that automatically discovers <filename>/home</filename>, <filename>/srv</filename> and swap partitions and creates mount and swap units for them, based on the the partition type GUIDs of GUID partition tables (GPT). Note that this generator has no effect on non-GPT systems, on systems where the units are explicitly configured (for example, listed in <citerefentry><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>), or where the mount points are non-empty.</para> <para>This generator will only look for partitions on the same physical disk the root file system is stored on. This generator has no effect on systems where the root file system is distributed on multiple disks, for example via btrfs RAID.</para> <para><filename>systemd-gpt-auto-generator</filename> is useful for centralizing file system configuration in the partition table and making manual configuration in <filename>/etc/fstab</filename> or suchlike unnecessary.</para> <para>This generator looks for the partitions based on their partition type GUID. The following partition type GUIDs are identified:</para> <table> <title>Partition Type GUIDs</title> <tgroup cols='3' align='left' colsep='1' rowsep='1'> <colspec colname="guid" /> <colspec colname="location" /> <colspec colname="explanation" /> <thead> <row> <entry>Partition Type GUID</entry> <entry>Location</entry> <entry>Explanation</entry> </row> </thead> <tbody> <row> <entry>0657fd6d-a4ab-43c4-84e50933c84b4f4f</entry> <entry>Swap</entry> <entry>All swap partitions are enabled.</entry> </row> <row> <entry>933ac7e1-2eb4-4f13-b8440e14e2aef915</entry> <entry><filename>/home</filename></entry> <entry>The first home partition on the disk is mounted to <filename>/home</filename>.</entry> </row> <row> <entry>3b8f8425-20e0-4f3b-907f1a25a76f98e8</entry> <entry><filename>/srv</filename></entry> <entry>The first server data partition on the disk is mounted to <filename>/srv</filename>.</entry> </row> </tbody> </tgroup> </table> <para>The <filename>/home</filename> and <filename>/srv</filename> partitions may be encrypted in LUKS format. In this case a device mapper device is set up under the names <filename>/dev/mapper/home</filename> and <filename>/dev/mapper/srv</filename>. Note that this might create conflicts if the same partition is listed in <filename>/etc/crypttab</filename> with a different device mapper device name.</para> <para>Also note that <citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry> will mount the EFI System Partition to <filename>/boot</filename> is not otherwise mounted.</para> <para><filename>systemd-gpt-auto-generator</filename> implements the <ulink url="http://www.freedesktop.org/wiki/Software/systemd/Generators">generator specification</ulink>.</para> </refsect1> <refsect1> <title>See Also</title> <para> <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd.swap</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd-efi-boot-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd-cryptsetup@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>cryptsetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry> </para> </refsect1> </refentry>