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+.\" $NetBSD: boot.8,v 1.14 2003/08/07 10:31:28 agc Exp $
+.\"
+.\" Copyright (c) 1992, 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. 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.
+.\"
+.\" @(#)boot_sparc.8 8.2 (Berkeley) 4/19/94
+.\"
+.Dd April 8, 2003
+.Dt BOOT 8 sun3
+.Os
+.Sh NAME
+.Nm boot
+.Nd system bootstrapping procedures
+.\" .Sh SYNOPSIS
+.\" .Nm reboot
+.\" .Op Fl n
+.\" .Op Fl q
+.\" .Oo
+.\" .Ar -- <boot string>
+.\" .Oc
+.Sh DESCRIPTION
+.Ss Power fail and crash recovery
+Normally, the system will reboot itself at power-up or after crashes.
+An automatic consistency check of the file systems will be performed
+as described in
+.Xr fsck 8 ,
+and unless this fails, the system will resume multi-user operations.
+.Ss Cold starts
+A disk-boot program
+.Pa ( /usr/mdec/ufsboot )
+will attempt to load
+.Pa netbsd
+from partition A of the boot device,
+which must currently be an
+.Dq sd
+disk.
+Alternatively, network boot program
+.Pa ( /usr/mdec/netboot )
+will load
+.Pa netbsd
+from the NFS root as determined by the procedure described in
+.Xr diskless 8 .
+.Ss Boot program options
+.Bl -tag -width xxx
+.It Fl a
+Prompt for the root file system device, the system crash dump
+device, and the path to
+.Xr init 8 .
+.It Fl d
+Bring the system up in debug mode.
+Here it waits for a kernel debugger connect; see
+.Xr ddb 4 .
+.It Fl q
+Boot the system in quiet mode.
+.It Fl s
+Bring the system up in single-user mode.
+.It Fl v
+Boot the system in verbose mode.
+.El
+.Pp
+Any extra flags or arguments, or the
+.Aq Ar boot string
+after the -- separator are passed to the boot PROM.
+Other flags are currently ignored.
+.Pp
+At any time you can break back to the ROM by pressing the
+.Sq L1
+and
+.Sq a
+keys at the same time (if the console is a serial port the same is
+achieved by sending a
+.Sq break ) .
+If you do this accidentally you can continue whatever was in progress
+by typing
+.Sq c
+followed by the return key.
+.Sh FILES
+.Bl -tag -width /usr/mdec/installboot -compact
+.It Pa /netbsd
+system code
+.It Pa /usr/mdec/bootxx
+first-level boot block for disks
+.It Pa /usr/mdec/netboot
+boot program for NFS (diskless) boot
+.It Pa /usr/mdec/ufsboot
+second-level boot program for UFS disks
+.It Pa /usr/mdec/installboot
+program to install bootxx on a disk
+.El
+.Sh SEE ALSO
+.Xr disklabel 8 ,
+.Xr fsck 8 ,
+.Xr halt 8 ,
+.Xr init 8 ,
+.Xr rc 8 ,
+.Xr shutdown 8 ,
+.Xr syslogd 8