systemd-cryptsetup-generator.xml revision 059b37cc288ab529c6b5033af1f8118914f0329f
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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Copyright 2012 Lennart Poettering
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<refentry id="systemd-cryptsetup-generator">
<refentryinfo>
<title>systemd-cryptsetup-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-cryptsetup-generator</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd-cryptsetup-generator</refname>
<refpurpose>Unit generator for <filename>/etc/crypttab</filename></refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>/usr/lib/systemd/system-generators/systemd-cryptsetup-generator</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><filename>systemd-cryptsetup-generator</filename>
is a generator that translates
<filename>/etc/crypttab</filename> into native systemd
units early at boot and when configuration of the
system manager is reloaded. This will create
<citerefentry><refentrytitle>systemd-cryptsetup@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
units as necessary.</para>
<para><filename>systemd-cryptsetup-generator</filename>
implements the <ulink
url="http://www.freedesktop.org/wiki/Software/systemd/Generator">generator
specification</ulink>.</para>
</refsect1>
<refsect1>
<title>Kernel Command Line</title>
<para><filename>systemd-cryptsetup-generator</filename> understands
the following kernel command line parameters:</para>
<variablelist>
<varlistentry>
<term><varname>luks=</varname></term>
<term><varname>rd.luks=</varname></term>
<listitem><para>Takes a boolean
argument. Defaults to
<literal>yes</literal>. If
<literal>no</literal> disables the
generator
entirely. <varname>rd.luks=</varname>
is honoured only be initial RAM disk
(initrd) while
<varname>luks=</varname> is honoured
by both the main system and the
initrd. </para></listitem>
</varlistentry>
<varlistentry>
<term><varname>luks.crypttab=</varname></term>
<term><varname>rd.luks.crypttab=</varname></term>
<listitem><para>Takes a boolean
argument. Defaults to
<literal>yes</literal>. If
<literal>no</literal> causes the
generator to ignore any devices
configured in
<filename>/etc/crypttab</filename>
(<varname>luks.uuid=</varname> will
still work
however). <varname>rd.luks.crypttab=</varname>
is honoured only be initial RAM disk
(initrd) while
<varname>luks.crypttab=</varname> is
honoured by both the main system and
the initrd. </para></listitem>
</varlistentry>
<varlistentry>
<term><varname>luks.uuid=</varname></term>
<term><varname>rd.luks.uuid=</varname></term>
<listitem><para>Takes a LUKS super
block UUID as argument. This will
activate the specified device as part
of the boot process as if it was
listed in
<filename>/etc/fstab</filename>. This
option may be specified more than once
in order to set up multiple
devices. <varname>rd.luks.uuid=</varname>
is honoured only be initial RAM disk
(initrd) while
<varname>luks.uuid=</varname> is
honoured by both the main system and
the initrd.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>crypttab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-cryptsetup@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>cryptsetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>