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-rw-r--r--man/systemd-remount-fs.service.xml24
-rw-r--r--man/systemd.mount.xml12
-rw-r--r--units/systemd-remount-fs.service.in1
3 files changed, 26 insertions, 11 deletions
diff --git a/man/systemd-remount-fs.service.xml b/man/systemd-remount-fs.service.xml
index d920c0c400..9fe953e8c6 100644
--- a/man/systemd-remount-fs.service.xml
+++ b/man/systemd-remount-fs.service.xml
@@ -59,20 +59,26 @@
listed in
<citerefentry><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
to the root file system, the <filename>/usr</filename>
- file system and the kernel API virtual file
- systems. This is required so that the mount options of
- these file systems -- which are pre-mounted by the
- kernel, the initial RAM disk, container environments
- or system manager code -- are updated to those listed
- in <filename>/etc/fstab</filename>. This service
- ignores normal file systems and only changes the root
- file system (i.e. <filename>/</filename>),
+ file system and the kernel API file systems. This is
+ required so that the mount options of these file
+ systems -- which are pre-mounted by the kernel, the
+ initial RAM disk, container environments or system
+ manager code -- are updated to those listed in
+ <filename>/etc/fstab</filename>. This service ignores
+ normal file systems and only changes the root file
+ system (i.e. <filename>/</filename>),
<filename>/usr</filename> and the virtual kernel API
file systems such as <filename>/proc</filename>,
<filename>/sys</filename> or
<filename>/dev/</filename>. This service executes no
operation if <filename>/etc/fstab</filename> does not
- exist or lists no entries for the mentioned file systems.</para>
+ exist or lists no entries for the mentioned file
+ systems.</para>
+
+ <para>For a longer discussion of kernel API file
+ systems see <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems">API
+ File Systems</ulink>.</para>
</refsect1>
<refsect1>
diff --git a/man/systemd.mount.xml b/man/systemd.mount.xml
index 78b5f5257c..d1940831a9 100644
--- a/man/systemd.mount.xml
+++ b/man/systemd.mount.xml
@@ -102,10 +102,18 @@
in the file system hierarchy, a dependency between both
units is created automatically.</para>
- <para>Mount points created at runtime independent on
- unit files or <filename>/etc/fstab</filename> will be
+ <para>Mount points created at runtime (independently of
+ unit files or <filename>/etc/fstab</filename>) will be
monitored by systemd and appear like any other mount
unit in systemd.</para>
+
+ <para>Some file systems have special semantics as API
+ file systems for kernel-to-userspace and
+ userspace-to-userpace interfaces. Some of them may not
+ be changed via mount units, and cannot be disabled.
+ For a longer discussion see <ulink
+ url="http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems">API
+ File Systems</ulink>.</para>
</refsect1>
<refsect1>
diff --git a/units/systemd-remount-fs.service.in b/units/systemd-remount-fs.service.in
index cddb0a1fb9..70e1a8680a 100644
--- a/units/systemd-remount-fs.service.in
+++ b/units/systemd-remount-fs.service.in
@@ -8,6 +8,7 @@
[Unit]
Description=Remount Root and Kernel File Systems
Documentation=man:systemd-remount-fs.service(8)
+Documentation=http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems
DefaultDependencies=no
Conflicts=shutdown.target
After=systemd-readahead-collect.service systemd-readahead-replay.service systemd-fsck-root.service