121 lines
3.1 KiB
HTML
121 lines
3.1 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of SYSTEMD-DEBUG-GENERATOR</TITLE>
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</HEAD><BODY>
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<H1>SYSTEMD-DEBUG-GENERATOR</H1>
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Section: systemd-debug-generator (8)<BR>Updated: <BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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systemd-debug-generator - Generator for enabling a runtime debug shell and masking specific units at boot
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<P>
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/lib/systemd/system-generators/systemd-debug-generator
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<P>
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systemd-debug-generator
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is a generator that reads the kernel command line and understands three options:
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<P>
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If the
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<B>systemd.mask=</B>
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or
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<B>rd.systemd.mask=</B>
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option is specified and followed by a unit name, this unit is masked for the runtime, similar to the effect of
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<B><A HREF="/cgi-bin/man/man2html?1+systemctl">systemctl</A></B>(1)'s
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<B>mask</B>
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command. This is useful to boot with certain units removed from the initial boot transaction for debugging system startup. May be specified more than once.
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<B>rd.systemd.mask=</B>
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is honored only by initial RAM disk (initrd) while
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<B>systemd.mask=</B>
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is honored only in the main system.
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<P>
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If the
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<B>systemd.wants=</B>
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or
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<B>rd.systemd.wants=</B>
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option is specified and followed by a unit name, a start job for this unit is added to the initial transaction. This is useful to start one or more additional units at boot. May be specified more than once.
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<B>rd.systemd.wants=</B>
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is honored only by initial RAM disk (initrd) while
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<B>systemd.wants=</B>
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is honored only in the main system.
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<P>
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If the
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<B>systemd.debug_shell</B>
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or
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<B>rd.systemd.debug_shell</B>
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option is specified, the debug shell service
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"debug-shell.service"
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is pulled into the boot transaction and a debug shell will be spawned during early boot. By default,
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/dev/tty9
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is used, but a specific tty can also be set, either with or without the
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/dev/
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prefix. Note that the shell may also be turned on persistently by enabling it with
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<B><A HREF="/cgi-bin/man/man2html?1+systemctl">systemctl</A></B>(1)'s
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<B>enable</B>
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command.
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<B>rd.systemd.debug_shell=</B>
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is honored only by initial RAM disk (initrd) while
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<B>systemd.debug_shell</B>
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is honored only in the main system.
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<P>
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systemd-debug-generator
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implements
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<B><A HREF="/cgi-bin/man/man2html?7+systemd.generator">systemd.generator</A></B>(7).
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<A NAME="lbAE"> </A>
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<H2>SEE ALSO</H2>
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<P>
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<B><A HREF="/cgi-bin/man/man2html?1+systemd">systemd</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+systemctl">systemctl</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?7+kernel-command-line">kernel-command-line</A></B>(7)
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="4"><A HREF="#lbAE">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:16 GMT, March 31, 2021
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</BODY>
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</HTML>
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