'\" t .TH "SYSTEMD\-DEBUG\-GENERATOR" "8" "" "systemd 230" "systemd-debug-generator" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" systemd-debug-generator \- Generator for enabling a runtime debug shell and masking specific units at boot .SH "SYNOPSIS" .PP /lib/systemd/system\-generators/systemd\-debug\-generator .SH "DESCRIPTION" .PP systemd\-debug\-generator is a generator that reads the kernel command line and understands three options: .PP If the \fBsystemd\&.mask=\fR option is specified and followed by a unit name, this unit is masked for the runtime, similar to the effect of \fBsystemctl\fR(1)\*(Aqs \fBmask\fR 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\&. .PP If the \fBsystemd\&.wants=\fR 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\&. .PP If the \fBsystemd\&.debug\-shell\fR 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 \fBsystemctl\fR(1)\*(Aqs \fBenable\fR command\&. .PP systemd\-debug\-generator implements \fBsystemd.generator\fR(7)\&. .SH "SEE ALSO" .PP \fBsystemd\fR(1), \fBsystemctl\fR(1), \fBkernel-command-line\fR(7)