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man: fix typo in systemd.watchdog_device kernel option

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The option that systemd actually looks for has an underscore and no dash
as can be seen in src/core/main.c.

The man/kernel-command-line.xml documentation also gets it right with
this file being the only instance of watchdog-device being used.

Fixes: c75396c30bd9 ("documentation: add description for watchdog device path")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
(cherry picked from commit 6f8a9d0917d6fe42c674466bffead9ac19db98e9)
This commit is contained in:
Ahmad Fatoum 2025-02-20 12:53:49 +01:00 committed by Daan De Meyer
parent 8b84cad890
commit b8b497e3da
1 changed files with 1 additions and 1 deletions
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man/systemd-system.conf.xml
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@ -353,7 +353,7 @@
<para>If <varname>RuntimeWatchdogSec=</varname> is set to a non-zero value, the watchdog hardware
(<filename>/dev/watchdog0</filename> or the path specified with <varname>WatchdogDevice=</varname> or
the kernel option <varname>systemd.watchdog-device=</varname>) will be programmed to automatically
the kernel option <varname>systemd.watchdog_device=</varname>) will be programmed to automatically
reboot the system if it is not contacted within the specified timeout interval. The system manager
will ensure to contact it at least once in half the specified timeout interval. This feature requires
a hardware watchdog device to be present, as it is commonly the case in embedded and server