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From 55798355455b9255458d6a705f8766c4dbe3ef73 Mon Sep 17 00:00:00 2001
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From: Lukas Nykryn <lnykryn@redhat.com>
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Date: Thu, 25 Oct 2018 16:34:00 +0200
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Subject: [PATCH] debug-generator: introduce rd.* version of all options
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(cherry picked from commit a7dd6d04b07f58df5c0294743d76df0be0b4b928)
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Resolves: #1643429
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---
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man/systemd-debug-generator.xml | 27 +++++++++++++++++++--------
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src/debug-generator/debug-generator.c | 2 +-
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2 files changed, 20 insertions(+), 9 deletions(-)
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diff --git a/man/systemd-debug-generator.xml b/man/systemd-debug-generator.xml
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index d5cf4109b..fa88e8ac0 100644
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--- a/man/systemd-debug-generator.xml
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+++ b/man/systemd-debug-generator.xml
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@@ -33,27 +33,38 @@
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that reads the kernel command line and understands three
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options:</para>
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- <para>If the <option>systemd.mask=</option> option is specified
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- and followed by a unit name, this unit is masked for the runtime,
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- similar to the effect of
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+ <para>If the <option>systemd.mask=</option> or <option>rd.systemd.mask=</option>
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+ option is specified and followed by a unit name, this unit is
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+ masked for the runtime, similar to the effect of
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s
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<command>mask</command> command. This is useful to boot with
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certain units removed from the initial boot transaction for
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- debugging system startup. May be specified more than once.</para>
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+ debugging system startup. May be specified more than once.
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+ <option>rd.systemd.mask=</option> is honored only by initial
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+ RAM disk (initrd) while <option>systemd.mask=</option> is
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+ honored only in the main system.</para>
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- <para>If the <option>systemd.wants=</option> option is specified
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+ <para>If the <option>systemd.wants=</option> or
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+ <option>rd.systemd.wants=</option> option is specified
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and followed by a unit name, a start job for this unit is added to
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the initial transaction. This is useful to start one or more
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- additional units at boot. May be specified more than once.</para>
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+ additional units at boot. May be specified more than once.
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+ <option>rd.systemd.wants=</option> is honored only by initial
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+ RAM disk (initrd) while <option>systemd.wants=</option> is
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+ honored only in the main system.</para>
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- <para>If the <option>systemd.debug_shell</option> option is
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+ <para>If the <option>systemd.debug_shell</option> or
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+ <option>rd.systemd.debug_shell</option> option is
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specified, the debug shell service
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<literal>debug-shell.service</literal> is pulled into the boot
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transaction. It will spawn a debug shell on tty9 during early
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system startup. Note that the shell may also be turned on
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persistently by enabling it with
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>'s
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- <command>enable</command> command.</para>
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+ <command>enable</command> command.
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+ <option>rd.systemd.debug_shell=</option> is honored only by initial
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+ RAM disk (initrd) while <option>systemd.debug_shell</option> is
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+ honored only in the main system.</para>
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<para><filename>systemd-debug-generator</filename> implements
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<citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
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diff --git a/src/debug-generator/debug-generator.c b/src/debug-generator/debug-generator.c
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index dd6ab94fa..800d31ceb 100644
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--- a/src/debug-generator/debug-generator.c
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+++ b/src/debug-generator/debug-generator.c
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@@ -154,7 +154,7 @@ int main(int argc, char *argv[]) {
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umask(0022);
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- r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, 0);
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+ r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, PROC_CMDLINE_RD_STRICT | PROC_CMDLINE_STRIP_RD_PREFIX);
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if (r < 0)
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log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
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