man: add sd_event_add_child(3)

[elogind.git] / man / machine-id.xml

diff --git a/man/machine-id.xml b/man/machine-id.xml
index a42c7bb5aca226c1ea1168f756a42d1bb672756a..725370d32dc4e523af18aad4c770754181bec20c 100644 (file)
--- a/man/machine-id.xml
+++ b/man/machine-id.xml
@@ -24,7 +24,7 @@
 
 <refentry id="machine-id">
         <refentryinfo>
-                <title>/etc/machine-id</title>
+                <title>machine-id</title>
                 <productname>systemd</productname>
 
                 <authorgroup>
@@ -44,7 +44,7 @@
 
         <refnamediv>
                 <refname>machine-id</refname>
-                <refpurpose>local machine ID configuration file</refpurpose>
+                <refpurpose>Local machine ID configuration file</refpurpose>
         </refnamediv>
 
         <refsynopsisdiv>
@@ -55,37 +55,40 @@
                 <title>Description</title>
 
                 <para>The <filename>/etc/machine-id</filename> file
-                contains the unique machine id of the local system
+                contains the unique machine ID of the local system
                 that is set during installation. The machine ID is a
-                single newline-terminated, hexadecimal, lowercase 32
-                character machine ID string. (When decoded from
-                hexadecimal this corresponds with a 16 byte/128 bit
-                string.)</para>
+                single newline-terminated, hexadecimal, 32-character,
+                lowercase machine ID string. When decoded from
+                hexadecimal, this corresponds with a 16-byte/128-bit
+                string.</para>
 
                 <para>The machine ID is usually generated from a
                 random source during system installation and stays
                 constant for all subsequent boots. Optionally, for
-                stateless systems it is generated during runtime at
+                stateless systems, it is generated during runtime at
                 boot if it is found to be empty.</para>
 
                 <para>The machine ID does not change based on user
-                configuration, or when hardware is replaced.</para>
+                configuration or when hardware is replaced.</para>
 
                 <para>This machine ID adheres to the same format and
                 logic as the D-Bus machine ID.</para>
 
                 <para>Programs may use this ID to identify the host
-                with a globally unique ID in the network, that does
+                with a globally unique ID in the network, which does
                 not change even if the local network configuration
-                changes. Due to this and its greater length it is
+                changes. Due to this and its greater length, it is
                 a more useful replacement for the
                 <citerefentry><refentrytitle>gethostid</refentrytitle><manvolnum>3</manvolnum></citerefentry>
-                call POSIX specifies.</para>
+                call that POSIX specifies.</para>
 
                 <para>The
                 <citerefentry><refentrytitle>systemd-machine-id-setup</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 tool may be used by installer tools to initialize the
-                machine ID at install time.</para>
+                machine ID at install time. Use
+                <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+                to initialize it on mounted (but not booted) system
+                images.</para>
         </refsect1>
 
         <refsect1>
@@ -93,9 +96,9 @@
 
                 <para>Note that the machine ID historically is not an
                 OSF UUID as defined by <ulink
-                url="http://tools.ietf.org/html/rfc4122">RFC
-                4122</ulink>, nor a Microsoft GUID. Starting with
-                systemd v30 newly generated machine IDs however do
+                url="https://tools.ietf.org/html/rfc4122">RFC
+                4122</ulink>, nor a Microsoft GUID; however, starting with
+                systemd v30, newly generated machine IDs do
                 qualify as v4 UUIDs.</para>
 
                 <para>In order to maintain compatibility with existing
@@ -113,7 +116,7 @@ id[8] = (id[8] &amp; 0x3F) | 0x80;</programlisting>
                 <para>(This code is inspired by
                 <literal>generate_random_uuid()</literal> of
                 <filename>drivers/char/random.c</filename> from the
-                kernel sources.)</para>
+                Linux kernel sources.)</para>
 
         </refsect1>
 
@@ -123,7 +126,7 @@ id[8] = (id[8] &amp; 0x3F) | 0x80;</programlisting>
                 <para>The simple configuration file format of
                 <filename>/etc/machine-id</filename> originates in the
                 <filename>/var/lib/dbus/machine-id</filename> file
-                introduced by D-Bus. In fact this latter file might be a
+                introduced by D-Bus. In fact, this latter file might be a
                 symlink to
                 <varname>/etc/machine-id</varname>.</para>
         </refsect1>
@@ -137,8 +140,9 @@ id[8] = (id[8] &amp; 0x3F) | 0x80;</programlisting>
                           <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>os-release</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+                          <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                   </para>
         </refsect1>