FSHALT(8)FSHALT(8)
NAME
fshalt, scram, reboot – halt any local file systems and optionally shut down or reboot the system
SYNOPSIS
fshalt
[
-r
[
kernelpath
]
]
reboot
[
kernelpath
]
scram
DESCRIPTION
Fshalt
syncs and halts all local
cwfs(4),
hjfs(4),
ext4srv(4),
and
gefs(4)
servers.
If given
-r,
fshalt
will then reboot the machine,
optionally starting
kernelpath.
Else it will try to shut down the machine through
/dev/pmctl
(if available) or invoke
scram.
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 by writing
power off
to
/dev/pmctl.
SOURCE
/rc/bin/fshalt
/rc/bin/reboot
/rc/bin/scram
SEE
acpi(8),
cons(3),
reboot(8)
BUGS
On standalone machines, it will be impossible to do anything if scram fails
after invoking bare
fshalt.
Scram
falls back to trying
aux/acpi
if writing to
/dev/pmctl
fails.
HISTORY
Scram
first appeared in 9front (May, 2011).