fshalt, scram, reboot – halt any local file systems and optionally
shut down or reboot the system|
fshalt [ –r ]|
reboot [ kernelpath ]
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
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.
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.
Scram first appeared in 9front (May, 2011).|