.TH RC 8
.UC
.SH NAME
rc \- command script for auto-reboot and daemons
.SH SYNOPSIS
.B /etc/rc
[
.B autoboot | fastboot
[
.B powerfail
] ]
.SH DESCRIPTION
.I Rc
is the command script which controls the automatic reboot.
.PP
When an automatic reboot is in progress,
.I rc
is invoked by \fI/etc/init\fP with the first argument
.I autoboot
and runs
.I fsck
with option
.B \-p
to ``preen'' all the disks of minor inconsistencies resulting
from the last system shutdown and to check for serious inconsistencies
caused by hardware or software failure.
If this auto-check and repair succeeds, then the second part of
.I rc
is run.
.PP
The second part of
.I rc,
which is run after a auto-reboot filesystem check succeeds and also if
.I rc
is invoked when a single user shell terminates (see
.IR init (8)),
starts all the daemons on the system, preserves editor files
and clears the scratch directory
.I /tmp.
.IR Savecore (8)
will be run to check for a system core dump,
and, if found, save the dump in /usr/sys.
The second argument may be
.I powerfail
if the system went down due to a power failure.
.SH SEE ALSO
init(8), reboot(8)
.SH BUGS
After making changes to the root file system,
the system must be rebooted to keep the incore copy of the super-block
from corrupting the newly computed super-block.
.PP
It should be possible to print a message about power failure
much earlier than from /etc/rc.