<refnamediv>
<refname>systemd-gpt-auto-generator</refname>
<refpurpose>Generator for automatically discovering
- and mounting <filename>/home</filename> and <filename>/srv</filename>, as well as
+ 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>
<title>Description</title>
<para><filename>systemd-gpt-auto-generator</filename>
- is a unit generator that automatically discovers
+ 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 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
+ 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 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>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
<title>Partition Type GUIDs</title>
<tgroup cols='3' align='left' colsep='1' rowsep='1'>
<colspec colname="guid" />
- <colspec colname="location" />
+ <colspec colname="name" />
<colspec colname="explanation" />
<thead>
<row>
<entry>Partition Type GUID</entry>
- <entry>Location</entry>
+ <entry>Name</entry>
<entry>Explanation</entry>
</row>
</thead>
<tbody>
<row>
- <entry>0657fd6d-a4ab-43c4-84e50933c84b4f4f</entry>
- <entry>Swap</entry>
- <entry>All swap partitions are enabled.</entry>
+ <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>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>
+ <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>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>
+ <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>
<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>
+ 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>
+ url="http://www.freedesktop.org/wiki/Software/systemd/Generators">Generator
+ Specification</ulink>.</para>
</refsect1>
<refsect1>
<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>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>
</para>
</refsect1>
~ianmdlvl / elogind.git / blobdiff