FSHALT(8)FSHALT(8)

NAME

fshalt, scram, reboot – halt any local file systems and optionally shut down or reboot the system

SYNOPSIS

fshalt [ -r ]
reboot [ kernelpath ]
scram

DESCRIPTION

Fshalt syncs and halts all local cwfs(4) and hjfs(4) servers. If given -r, fshalt will then reboot the machine. Else it will invoke scram to shut down the machine. The halting and rebooting is done by copying all necessary commands into a 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.

Reboot restarts the machine it is invoked on. If an optional kernelpath is specified then the machine will load and start that kernel directly instead of returning to the system rom. (see cons(3)).

Scram shuts down the machine it is invoked on.

SOURCE

/rc/bin/fshalt
/rc/bin/reboot
/sys/src/cmd/scram.c

SEE

cons(3), reboot(8)

BUGS

On standalone machines, it will be impossible to do anything if scram fails after invoking bare fshalt.

Scram is limited to the PC and requires APM or ACPI.

HISTORY

Scram first appeared in 9front (May, 2011).