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![Lennart Poettering](/assets/img/avatar_default.png)
If specified we'll not try to find a free V, but instead just output directly to the specified TTY. This is particularly useful for debugging, as it means "systemd-bsod --tty=/dev/tty" just works.
87 lines
2.9 KiB
XML
87 lines
2.9 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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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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<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<refentry id="systemd-bsod.service" conditional='HAVE_QRENCODE' xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>systemd-bsod</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-bsod.service</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-bsod.service</refname>
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<refname>systemd-bsod</refname>
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<refpurpose>Displays boot-time emergency log message in full screen.</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>systemd-bsod.service</filename></para>
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<cmdsynopsis>
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<command>/usr/lib/systemd/systemd-bsod</command>
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<arg choice="opt" rep="repeat">OPTIONS</arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><filename>systemd-bsod.service</filename> is used to display a blue screen which contains a message
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relating to a boot failure, including a QR code which can be scanned to get helpful information about the
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failure.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood by <command>systemd-bsod</command>:</para>
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<variablelist>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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<varlistentry>
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<term><option>-c</option></term>
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<term><option>--continuous</option></term>
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<listitem><para>When specified, <command>systemd-bsod</command> waits continuously for changes in the
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journal if it doesn't find any emergency messages on the initial attempt.</para>
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<xi:include href="version-info.xml" xpointer="v255"/></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--tty=</option><replaceable></replaceable></term>
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<listitem><para>Specify the TTY to output to. By default <command>systemd-bsod</command> will
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automatically find a free VT to display the message on. If this option is specified a TTY may be
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selected explicitly. Use <option>--tty=/dev/tty</option> to direct output to the terminal the command
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is invoked on.</para>
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<xi:include href="version-info.xml" xpointer="v256"/></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>Exit status</title>
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<para>On success (displaying the journal message successfully), 0 is returned, a non-zero failure code otherwise.</para>
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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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</para>
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</refsect1>
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</refentry>
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