1.\" $NetBSD: boot.8,v 1.9 2008/09/24 20:07:05 reed Exp $ 2.\" 3.\" Copyright (c) 1990, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Systems Programming Group of the University of Utah Computer 8.\" Science Department. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)boot_hp300.8 8.2 (Berkeley) 4/19/94 35.\" 36.Dd April 19, 1994 37.Dt BOOT 8 hp300 38.Os 39.Sh NAME 40.Nm boot 41.Nd 42system bootstrapping procedures 43.Sh DESCRIPTION 44.Ss Power fail and crash recovery 45Normally, the system will reboot itself at power-up or after crashes. 46An automatic consistency check of the file systems will be performed, 47and unless this fails, the system will resume multi-user operations. 48.Pp 49.Ss Cold starts 50On an HP300, the boot procedure uses the boot ROM to load a boot program 51from an 52.Tn LIF 53format directory at the beginning of an attached disk. 54The 55.Pa /usr/mdec 56directory contains a disk boot programs which should be placed in a 57new pack automatically by 58.Xr newfs 8 59when the 60.Dq a 61partition file system on the pack is created. 62.Pp 63This 64.Em boot 65program 66finds the corresponding file on the given device 67.Pf ( Ar netbsd 68by default), 69loads that file into memory, 70and starts the program at the entry address specified in the program header. 71.Pp 72The boot program can be interrupted by typing 73.Sq \&^C 74(ctrl-C). 75This will force the boot program to interactively prompt for a system to boot. 76If not interrupted, it will boot from the device from which the boot 77program itself was loaded. 78.Pp 79The file specifications used for an interactive boot are of the form: 80.Pp 81.Dl device(unit, minor) 82.Pp 83where 84.Ar device 85is the type of the device to be searched, 86.Ar unit 87is 8 * the HP-IB number plus the unit number of the disk or tape, 88and 89.Ar minor 90is the disk partition or tape file number. 91Normal line editing characters can be used when typing the file specification. 92Currently, 93.Dq rd 94and 95.Dq sd 96are the only valid 97.Ar device 98specifiers. 99.Pp 100For example, 101to boot from the 102.Sq a 103file system of unit 0 on HP-IB 2, 104type 105.Ql rd(16, 0)netbsd 106to the boot prompt. 107For tapes, the minor device number gives a file offset. 108.Pp 109In an emergency, the bootstrap methods described in the paper 110.%T Installing 4.3bsd on the HP300 111can be used to boot from a distribution tape. 112.Sh FILES 113.Bl -tag -width /usr/mdec/installboot -compact 114.It Pa /netbsd 115system code 116.It Pa /usr/mdec/bootrd 117.Tn LIF 118format boot block 119.It Pa /usr/mdec/installboot 120program to install boot blocks 121.El 122.Sh SEE ALSO 123.Xr halt 8 , 124.Xr reboot 8 , 125.Xr shutdown 8 126