1 .\" $NetBSD: boot.9,v 1.2 1996/09/24 07:01:26 ghudson Exp $
4 .\" Mike Pritchard. All rights reserved.
6 .\" Copyright (c) 1994 Christopher G. Demetriou
7 .\" All rights reserved.
9 .\" Redistribution and use in source and binary forms, with or without
10 .\" modification, are permitted provided that the following conditions
12 .\" 1. Redistributions of source code must retain the above copyright
13 .\" notice, this list of conditions and the following disclaimer.
14 .\" 2. Redistributions in binary form must reproduce the above copyright
15 .\" notice, this list of conditions and the following disclaimer in the
16 .\" documentation and/or other materials provided with the distribution.
17 .\" 3. All advertising materials mentioning features or use of this software
18 .\" must display the following acknowledgement:
19 .\" This product includes software developed by Christopher G. Demetriou
20 .\" for the NetBSD Project.
21 .\" 3. The name of the author may not be used to endorse or promote products
22 .\" derived from this software without specific prior written permission
24 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 .Nd halt or reboot the system
52 function handles final system shutdown, and either halts or reboots
54 The exact action to be taken is determined by the flags passed in
56 and by whether or not the system has finished autoconfiguration.
58 If the system has finished autoconfiguration,
61 .Bl -enum -offset indent
63 If this is the first invocation of
69 syncs and unmounts the system disks by calling
70 .Xr vfs_unmountall 9 .
74 If rebooting after a crash (i.e., if
80 is not), saves a system crash dump.
82 Runs any shutdown hooks previously registered.
84 Prints a message indicating that the system is about to be halted
92 Otherwise, reboots the system.
95 If the system has not finished autoconfiguration,
97 runs any shutdown hooks previously registered,
98 prints a message, and halts the system.