119 lines
3.5 KiB
Groff
119 lines
3.5 KiB
Groff
.\" Copyright (c) 1990, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)reboot.8 8.1 (Berkeley) 6/9/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd June 9, 1993
|
|
.Dt REBOOT 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm reboot ,
|
|
.Nm halt ,
|
|
.Nm fastboot ,
|
|
.Nm fasthalt
|
|
.Nd stopping and restarting the system
|
|
.Sh SYNOPSIS
|
|
.Nm halt
|
|
.Op Fl nqp
|
|
.Nm reboot
|
|
.Op Fl dnqp
|
|
.Nm fasthalt
|
|
.Op Fl nqp
|
|
.Nm fastboot
|
|
.Op Fl dnqp
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm halt
|
|
and
|
|
.Nm
|
|
utilities flush the file system cache to disk, send all running processes
|
|
a
|
|
.Dv SIGTERM
|
|
(and subsequently a
|
|
.Dv SIGKILL )
|
|
and, respectively, halt or restart the system.
|
|
The action is logged, including entering a shutdown record into the
|
|
.Xr wtmp 5
|
|
file.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width indent
|
|
.It Fl d
|
|
The system is requested to create a crash dump. This option is
|
|
supported only when rebooting, and it has no effect unless a dump
|
|
device has previously been specified with
|
|
.Xr dumpon 8 .
|
|
.It Fl n
|
|
The file system cache is not flushed.
|
|
This option should probably not be used.
|
|
.It Fl q
|
|
The system is halted or restarted quickly and ungracefully, and only
|
|
the flushing of the file system cache is performed (if the
|
|
.Fl n
|
|
is not specified).
|
|
This option should probably not be used.
|
|
.It Fl p
|
|
The system will turn off the power
|
|
if it can. This is of course likely to make
|
|
.Nm
|
|
rather similar to
|
|
.Nm halt .
|
|
.El
|
|
.Pp
|
|
The
|
|
.Nm fasthalt
|
|
and
|
|
.Nm fastboot
|
|
utilities are nothing more than aliases for the
|
|
.Nm halt
|
|
and
|
|
.Nm
|
|
utilities.
|
|
.Pp
|
|
Normally, the
|
|
.Xr shutdown 8
|
|
utility is used when the system needs to be halted or restarted, giving
|
|
users advance warning of their impending doom and cleanly terminating
|
|
specific programs.
|
|
.Sh SEE ALSO
|
|
.Xr wtmp 5 ,
|
|
.Xr boot 8 ,
|
|
.Xr dumpon 8 ,
|
|
.Xr savecore 8 ,
|
|
.Xr shutdown 8 ,
|
|
.Xr sync 8
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
command appeared in
|
|
.At v6 .
|