ref: 8c20c6ec1933054386dd712158d2452da15d6ec7
dir: /sys/man/8/fshalt/
.TH FSHALT 8 .SH NAME fshalt, scram, reboot \- halt any local file systems and optionally shut down or reboot the system .SH SYNOPSIS .B fshalt [ .B -r [ .I kernelpath ] ] .br .B reboot [ .I kernelpath ] .br .B scram .SH DESCRIPTION .I Fshalt syncs and halts all local .IR cwfs (4) and .IR hjfs (4) servers. If given .BR -r , .I fshalt will then reboot the machine, optionally starting .IR kernelpath . Else it will try to shut down the machine through .I /dev/pmctl (if available) or invoke .IR scram . The halting and rebooting is done by copying all necessary commands into a .IR ramfs (4) file system and changing directory there before attempting to halt file systems, so this will work even on standalone machines with their roots on local file systems. .PP .I Reboot restarts the machine it is invoked on. If an optional .I kernelpath is specified then the machine will load and start that kernel directly instead of returning to the system rom. (see .IR cons (3)). .PP .I Scram shuts down the machine it is invoked on by writing .I power off to .BR /dev/pmctl . .SH SOURCE .B /rc/bin/fshalt .br .B /rc/bin/reboot .br .B /rc/bin/scram .SH SEE ALSO .IR acpi (8), .IR cons (3), .IR reboot (8) .SH BUGS On standalone machines, it will be impossible to do anything if scram fails after invoking bare .IR fshalt . .I Scram falls back to trying .I aux/acpi if writing to .B /dev/pmctl fails. .SH HISTORY .I Scram first appeared in 9front (May, 2011).