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12b42c7667
This did not really work out as we had hoped. Trying to do this upstream introduced several problems that probably makes it better suited as a downstream patch after all. At any rate, it is not releaseable in the current state, so we at least need to revert this before the release. * by adjusting the path to binaries, but not do the same thing to the search path we end up with inconsistent man-pages. Adjusting the search path too would be quite messy, and it is not at all obvious that this is worth the effort, but at any rate it would have to be done before we could ship this. * this means that distributed man-pages does not make sense as they depend on config options, and for better or worse we are still distributing man pages, so that is something that definitely needs sorting out before we could ship with this patch. * we have long held that split-usr is only minimally supported in order to boot, and something we hope will eventually go away. So before we start adding even more magic/effort in order to make this work nicely, we should probably question if it makes sense at all.
194 lines
7.8 KiB
XML
194 lines
7.8 KiB
XML
<?xml version="1.0"?>
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<!--*-nxml-*-->
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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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<!--
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-cryptsetup-generator" conditional='HAVE_LIBCRYPTSETUP'>
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<refentryinfo>
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<title>systemd-cryptsetup-generator</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-cryptsetup-generator</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-cryptsetup-generator</refname>
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<refpurpose>Unit generator for <filename>/etc/crypttab</filename></refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/usr/lib/systemd/system-generators/systemd-cryptsetup-generator</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><filename>systemd-cryptsetup-generator</filename> is a
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generator that translates <filename>/etc/crypttab</filename> into
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native systemd units early at boot and when configuration of the
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system manager is reloaded. This will create
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<citerefentry><refentrytitle>systemd-cryptsetup@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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units as necessary.</para>
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<para><filename>systemd-cryptsetup-generator</filename> implements
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<citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
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</refsect1>
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<refsect1>
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<title>Kernel Command Line</title>
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<para><filename>systemd-cryptsetup-generator</filename>
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understands the following kernel command line parameters:</para>
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<variablelist class='kernel-commandline-options'>
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<varlistentry>
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<term><varname>luks=</varname></term>
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<term><varname>rd.luks=</varname></term>
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<listitem><para>Takes a boolean argument. Defaults to
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<literal>yes</literal>. If <literal>no</literal>, disables the
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generator entirely. <varname>rd.luks=</varname> is honored
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only by initial RAM disk (initrd) while
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<varname>luks=</varname> is honored by both the main system
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and the initrd. </para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>luks.crypttab=</varname></term>
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<term><varname>rd.luks.crypttab=</varname></term>
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<listitem><para>Takes a boolean argument. Defaults to
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<literal>yes</literal>. If <literal>no</literal>, causes the
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generator to ignore any devices configured in
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<filename>/etc/crypttab</filename>
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(<varname>luks.uuid=</varname> will still work however).
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<varname>rd.luks.crypttab=</varname> is honored only by
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initial RAM disk (initrd) while
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<varname>luks.crypttab=</varname> is honored by both the main
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system and the initrd. </para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>luks.uuid=</varname></term>
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<term><varname>rd.luks.uuid=</varname></term>
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<listitem><para>Takes a LUKS superblock UUID as argument. This
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will activate the specified device as part of the boot process
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as if it was listed in <filename>/etc/crypttab</filename>.
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This option may be specified more than once in order to set up
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multiple devices. <varname>rd.luks.uuid=</varname> is honored
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only by initial RAM disk (initrd) while
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<varname>luks.uuid=</varname> is honored by both the main
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system and the initrd.</para>
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<para>If /etc/crypttab contains entries with the same UUID,
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then the name, keyfile and options specified there will be
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used. Otherwise the device will have the name
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<literal>luks-UUID</literal>.</para>
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<para>If /etc/crypttab exists, only those UUIDs
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specified on the kernel command line
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will be activated in the initrd or the real root.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>luks.name=</varname></term>
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<term><varname>rd.luks.name=</varname></term>
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<listitem><para>Takes a LUKS super block UUID followed by an
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<literal>=</literal> and a name. This implies
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<varname>rd.luks.uuid=</varname> or
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<varname>luks.uuid=</varname> and will additionally make the
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LUKS device given by the UUID appear under the provided
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name.</para>
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<para><varname>rd.luks.name=</varname> is honored only by
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initial RAM disk (initrd) while <varname>luks.name=</varname>
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is honored by both the main system and the initrd.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>luks.options=</varname></term>
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<term><varname>rd.luks.options=</varname></term>
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<listitem><para>Takes a LUKS super block UUID followed by an
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<literal>=</literal> and a string of options separated by
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commas as argument. This will override the options for the
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given UUID.</para>
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<para>If only a list of options, without an UUID, is
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specified, they apply to any UUIDs not specified elsewhere,
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and without an entry in
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<filename>/etc/crypttab</filename>.</para><para>
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<varname>rd.luks.options=</varname> is honored only by initial
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RAM disk (initrd) while <varname>luks.options=</varname> is
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honored by both the main system and the initrd.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>luks.key=</varname></term>
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<term><varname>rd.luks.key=</varname></term>
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<listitem><para>Takes a password file name as argument or a
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LUKS super block UUID followed by a <literal>=</literal> and a
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password file name.</para>
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<para>For those entries specified with
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<varname>rd.luks.uuid=</varname> or
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<varname>luks.uuid=</varname>, the password file will be set
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to the one specified by <varname>rd.luks.key=</varname> or
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<varname>luks.key=</varname> of the corresponding UUID, or the
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password file that was specified without a UUID.</para>
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<para><varname>rd.luks.key=</varname>
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is honored only by initial RAM disk
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(initrd) while
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<varname>luks.key=</varname> is
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honored by both the main system and
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the initrd.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>crypttab</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-cryptsetup@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='die-net'><refentrytitle>cryptsetup</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-fstab-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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