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systemd-system-update-generator(8) [opendarwin man page]

SYSTEMD-SYSTEM-UPDATE-GENERATOR(8)			  systemd-system-update-generator			SYSTEMD-SYSTEM-UPDATE-GENERATOR(8)

NAME
systemd-system-update-generator - Generator for redirecting boot to offline update mode SYNOPSIS
/lib/systemd/system-generators/systemd-system-update-generator DESCRIPTION
systemd-system-update-generator is a generator that automatically redirects the boot process to system-update.target, if /system-update exists. This is required to implement the logic explained in the systemd.offline-updates(7). systemd-system-update-generator implements systemd.generator(7). SEE ALSO
systemd(1), systemd.special(7) systemd 237 SYSTEMD-SYSTEM-UPDATE-GENERATOR(8)

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SYSTEMD-DEBUG-GENERATOR(8)                                    systemd-debug-generator                                   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) systemd 237 SYSTEMD-DEBUG-GENERATOR(8)
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