mirror of
https://github.com/systemd/systemd.git
synced 2024-12-01 06:13:38 +08:00
187 lines
11 KiB
XML
187 lines
11 KiB
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">
|
|
<!--
|
|
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 root, <filename>/home</filename> and
|
|
<filename>/srv</filename> partitions, 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 root,
|
|
<filename>/home</filename>, <filename>/srv</filename>
|
|
and swap partitions and creates mount and swap units
|
|
for them, based on the partition type GUIDs of
|
|
GUID partition tables (GPT). It implements the <ulink
|
|
url="http://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/">Discoverable
|
|
Partitions Specification</ulink>. 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 root
|
|
partitions on the same physical disk the EFI System
|
|
Partition (ESP) is located on. It will only look for
|
|
the other partitions on the same physical disk the
|
|
root file system is located on. These partitions will
|
|
not be searched 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="name" />
|
|
<colspec colname="explanation" />
|
|
<thead>
|
|
<row>
|
|
<entry>Partition Type GUID</entry>
|
|
<entry>Name</entry>
|
|
<entry>Explanation</entry>
|
|
</row>
|
|
</thead>
|
|
<tbody>
|
|
<row>
|
|
<entry>44479540-f297-41b2-9af7-d131d5f0458a</entry>
|
|
<entry><filename>Root Partition (x86)</filename></entry>
|
|
<entry>On 32-bit x86 systems, the first x86 root partition on the disk the EFI ESP is located on is mounted to the root directory <filename>/</filename>.</entry>
|
|
</row>
|
|
<row>
|
|
<entry>4f68bce3-e8cd-4db1-96e7-fbcaf984b709</entry>
|
|
<entry><filename>Root Partition (x86-64)</filename></entry>
|
|
<entry>On 64-bit x86 systems, the first x86-64 root partition on the disk the EFI ESP is located on is mounted to the root directory <filename>/</filename>.</entry>
|
|
</row>
|
|
<row>
|
|
<entry>69dad710-2ce4-4e3c-b16c-21a1d49abed3</entry>
|
|
<entry><filename>Root Partition (32-bit ARM)</filename></entry>
|
|
<entry>On 32-bit ARM systems, the first ARM root partition on the disk the EFI ESP is located on is mounted to the root directory <filename>/</filename>.</entry>
|
|
</row>
|
|
<row>
|
|
<entry>b921b045-1df0-41c3-af44-4c6f280d3fae</entry>
|
|
<entry><filename>Root Partition (64-bit ARM)</filename></entry>
|
|
<entry>On 64-bit ARM systems, the first ARM root partition on the disk the EFI ESP is located on is mounted to the root directory <filename>/</filename>.</entry>
|
|
</row>
|
|
<row>
|
|
<entry>933ac7e1-2eb4-4f13-b844-0e14e2aef915</entry>
|
|
<entry>Home Partition</entry>
|
|
<entry>The first home partition on the disk the root partition is located on is mounted to <filename>/home</filename>.</entry>
|
|
</row>
|
|
<row>
|
|
<entry>3b8f8425-20e0-4f3b-907f-1a25a76f98e8</entry>
|
|
<entry>Server Data Partition</entry>
|
|
<entry>The first server data partition on the disk the root partition is located on is mounted to <filename>/srv</filename>.</entry>
|
|
</row>
|
|
<row>
|
|
<entry>0657fd6d-a4ab-43c4-84e5-0933c84b4f4f</entry>
|
|
<entry>Swap</entry>
|
|
<entry>All swap partitions located on the disk the root partition is located on are enabled.</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 (ESP) to
|
|
<filename>/boot</filename> if not otherwise mounted.</para>
|
|
|
|
<para>When using this generator in conjunction with
|
|
btrfs file systems, make sure to set the correct
|
|
default subvolumes on them, using <command>btrfs
|
|
subvolume set-default</command>.</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>,
|
|
<citerefentry><refentrytitle>btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|