xenial (8) systemd-debug-generator.8.gz

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)