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systemd-debug-generator(8)


NAME

   systemd-debug-generator - Generator for enabling a runtime debug shell
   and masking specific units at boot

SYNOPSIS

   /lib/systemd/system-generators/systemd-debug-generator

DESCRIPTION

   systemd-debug-generator is a generator that reads the kernel command
   line and understands three options:

   If the systemd.mask= option is specified and followed by a unit name,
   this unit is masked for the runtime, similar to the effect of
   systemctl(1)'s mask 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.

   If the systemd.wants= 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.

   If the systemd.debug-shell option is specified, the debug shell service
   "debug-shell.service" is pulled into the boot transaction. It will
   spawn a debug shell on tty9 during early system startup. Note that the
   shell may also be turned on persistently by enabling it with
   systemctl(1)'s enable command.

   systemd-debug-generator implements systemd.generator(7).

SEE ALSO

   systemd(1), systemctl(1), kernel-command-line(7)



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