128 lines
4.4 KiB
Groff
128 lines
4.4 KiB
Groff
.\" $NetBSD: boot.8,v 1.9 2000/07/05 16:13:45 msaitoh Exp $
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.\"
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.\" Copyright (c) 1992, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)boot_sparc.8 8.2 (Berkeley) 4/19/94
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.\"
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.Dd April 13, 1997
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.Dt BOOT 8 sparc
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.Os
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.Sh NAME
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.Nm boot
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.Nd
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system bootstrapping procedures
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.Sh SYNOPSIS
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.Nm boot
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.Op Fl n
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.Op Fl q
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.Op Fl d
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.Oo
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.Ar -- <boot string>
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.Oc
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.Sh DESCRIPTION
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.Sy Power fail and crash recovery.
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Normally, the system will reboot itself at power-up or after crashes.
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An automatic consistency check of the file systems will be performed
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as described in
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.Xr fsck 8 .
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and unless this fails, the system will resume multi-user operations.
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.Pp
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.Sy Cold starts
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The
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.Nx
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boot
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.Pa netbsd
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from partition a of the boot device,
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which must currently be an ``sd'' disk.
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.Pp
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The
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.Op Fl s
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flag to the boot loader will being the system up in single-user mode.
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The
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.Op Fl a
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flag instructs the system to prompt for the location of the root filesystem
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and the primary swap partition.
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The
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.Op Fl d
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flag to the boot loader will bring the system up in debug mode.
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Here it waits for a kernel debugger connect; see
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.Xr gdb 8 .
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Any extra flags or arguments, the after the -- separator,
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.Ar <boot string>
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are passed to the boot prom.
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Other flags are currently ignored.
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.Pp
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The Sparc boot rom comes in two flavours: an ``old-style'' rom is used in
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sun4 machines, while A ``new-style'' rom can be found on sun4c and sun4m models.
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The ``new-style'' Sparc boot rom is a full-featured Forth system with emacs
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key bindings. It can be put in ``old-style'' user-interface compatibility
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mode (in which case it shows a simple `>' prompt), but this is essentially
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useless. However, by default the rom runs in old-mode; to enter new-mode type `n'.
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The rom then shows a Forth-style `ok' prompt. It is recommended to have
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the rom always start in its native ``new-style'' mode. Utter the following
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incantation in new-mode to force the rom to always start in new-mode.
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.Pp
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.Pa \ ok
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setenv sunmon-compat? false
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.Pp
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The rom will normally load the kernel from "sd(0,0,0)vmunix". To change the
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default so that
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.Nx
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will be loaded type the following
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.Pp
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.Pa \ ok
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setenv boot-from sd(0,0,0)netbsd
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.Pp
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At any time you can break back to the rom by pressing the `L1' and `a'
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keys at the same time (if the console is a serial port the same is
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achieved by sending a `break').
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If you do this accidentally you can continue whatever was in progress
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by typing `go'.
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.Pp
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.Sh FILES
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.Bl -tag -width /netbsdxx -compact
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.It Pa /netbsd
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system code
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.It Pa /boot
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system bootstrap
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.El
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.Sh SEE ALSO
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.Xr crash 8 ,
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.Xr disklabel 8 ,
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.Xr fsck 8 ,
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.Xr halt 8 ,
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.Xr init 8 ,
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.Xr rc 8 ,
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.Xr shutdown 8 ,
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.Xr syslogd 8 ,
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.Xr installboot 8
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