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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY COMMANDNAME "plymouth">
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<!ENTITY TIMESTAMP "2017-02-23">
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<!ENTITY TIMESTAMP "2019-07-27">
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<!ENTITY % common SYSTEM "../common.ent">
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<command>&COMMANDNAME;</command>
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<option>--prompt <replaceable>PROMPT</replaceable></option>
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<arg><option>--debug</option></arg>
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<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--help</option></arg>
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<arg choice="plain"><option>-?</option></arg>
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<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--usage</option></arg>
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<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--version</option></arg>
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<arg choice="plain"><option>-V</option></arg>
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<refsect1 id="options">
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<title>OPTIONS</title>
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This program takes no options.
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This program is commonly not invoked from the command line; it
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is normally started by the <application>Mandos</application>
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plugin runner, see <citerefentry><refentrytitle
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>plugin-runner</refentrytitle><manvolnum>8mandos</manvolnum>
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</citerefentry>. Any command line options this program accepts
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are therefore normally provided by the plugin runner, and not
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<term><option>--prompt=<replaceable
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>PROMPT</replaceable></option></term>
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The password prompt. Note that using this option will
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make this program ignore the <envar>cryptsource</envar>
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and <envar>crypttarget</envar> environment variables.
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<term><option>--debug</option></term>
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Enable debug mode. This will enable a lot of output to
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standard error about what the program is doing. The
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program will still perform all other functions normally.
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<term><option>--help</option></term>
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<term><option>-?</option></term>
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Gives a help message about options and their meanings.
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<term><option>--usage</option></term>
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Gives a short usage message.
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<term><option>--version</option></term>
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<term><option>-V</option></term>
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Prints the program version.
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<refsect1 id="exit_status">
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<term><envar>crypttarget</envar></term>
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If set, these environment variables will be assumed to
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If set, and if the <option>--prompt</option> option is not
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used, these environment variables will be assumed to
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contain the source device name and the target device
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mapper name, respectively, and will be shown as part of
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These variables will normally be inherited from
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<citerefentry><refentrytitle>plugin-runner</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>, which will
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normally have inherited them from
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<filename>/scripts/local-top/cryptroot</filename> in the
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initial <acronym>RAM</acronym> disk environment, which will
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have set them from parsing kernel arguments and
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<filename>/conf/conf.d/cryptroot</filename> (also in the
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initial RAM disk environment), which in turn will have been
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created when the initial RAM disk image was created by
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>/usr/share/initramfs-tools/hooks/cryptroot</filename>, by
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extracting the information of the root file system from
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<filename >/etc/crypttab</filename>.
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<manvolnum>8mandos</manvolnum></citerefentry>, which might
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have in turn inherited them from its calling process.
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This behavior is meant to exactly mirror the behavior of
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<command>askpass</command>, the default password prompter.
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<command>askpass</command>, the default password prompter
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from initramfs-tools.
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<citerefentry><refentrytitle>intro</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>crypttab</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>plugin-runner</refentrytitle>
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<manvolnum>8mandos</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>proc</refentrytitle>
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plugins.d/plymouth.xml
