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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 15:32:58 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 15:32:58 -0400
commit5cb84ec742fd33f78c8022863fadaa8d0d93e176 (patch)
tree1a81ca3665e6153923e40db7b0d988f8573ab59c /static/netbsd/man8/man8.amiga/installboot.8
parenta59214f344567c037d5776879bcfc5fcc1d4d5f6 (diff)
feat: Added NetBSD man pages
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+.\" $NetBSD: installboot.8,v 1.25 2021/02/26 10:44:31 wiz Exp $
+.\"
+.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Paul Kranenburg.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+.\"
+.Dd February 25, 2021
+.Dt INSTALLBOOT 8 amiga
+.Os
+.Sh NAME
+.Nm installboot
+.Nd install a bootstrap on an FFS filesystem partition
+.Sh SYNOPSIS
+.Nm /usr/mdec/installboot
+.Op Fl l Ar newcommandline
+.Ar bootblock
+.Ar device
+.Sh DESCRIPTION
+.Nm installboot
+copies the bootblock to a bootable partition.
+The
+bootstrap is written into the bootblock area on the partition, right
+in front of the superblock, and hence limited in size to
+8192 bytes.
+.Pp
+The bootstrap resides in the first few blocks on the partition
+.Pq as specified by Commodore-Amiga Inc.
+The bootstrap is loaded into memory by the ROM from bootable devices:
+RDB devices, where the partition is marked as bootable, or (not on the
+DraCo) floppy disks in Amiga format (880K/1760k).
+.Pp
+In the presence of more than one bootable partition/floppy disk, the partition
+is chosen by the bootpriority (from the RDB), which can be overridden by
+the operator from the boot menu (on Amiga machines, hold down the outer
+mouse buttons during boot; on DraCo machines, press the left mouse button
+when prompted).
+.Pp
+On RDB devices, the whole bootblock is loaded by the ROM.
+The number of
+boot blocks in the RDB partition entry must be correct.
+.Pp
+On floppy disks, the ROM always loads the first two blocks (1024 bytes),
+and the bootblock allocates memory and loads the whole bootblock on startup.
+.Pp
+After receiving control, the bootblock uses the stand-alone
+filesystem code in
+.Dq libsa.a
+to load the kernel from the filesystem on the partition it was started from.
+The code for the boot program can be found in
+.Pa /usr/mdec/bootxx_fd
+.Pq floppy disk code ,
+.Pa /usr/mdec/bootxx_ffsv1
+.Pq generic RDB disk code for FFSv1 ,
+or
+.Pa /usr/mdec/bootxx_ffsv2
+.Pq generic RDB disk code for FFSv2 .
+.Pp
+The arguments are:
+.Bl -tag -width bootblock
+.It Fl l Ar newcommandline
+Specify a different command line to replace the default.
+.It Ar bootblock
+The file containing the bootblock (normally /usr/mdec/bootxx_ffsv1 or
+bootxx_ffsv2 for RDB devices).
+.It Ar device
+The name of the character special device specifying the partition on which the
+bootstrap is to be installed.
+.El
+.Sh EXAMPLES
+The following command will install the
+boot program for FFSv1 in the bootblock area on
+.Dq sd0a :
+.Bd -literal -offset indent
+installboot /usr/mdec/bootxx_ffsv1 /dev/rsd0a
+.Ed
+.Sh SEE ALSO
+.Xr dd 1 ,
+.Xr amiga/boot 8
+.Sh HISTORY
+The
+.Nm
+command first appeared in
+.Nx 1.3 .
+.Sh BUGS
+If
+.Nm
+is accidentally used on the whole disk partition, the RDB will be overwritten,
+making your system unusable after the next reboot.
+.Pp
+Some third-party accelerator boards are not autoconfiguring.
+You won't be able to use their memory when booting from the bootblock
+after a cold start.
+.Pp
+Some third-party disk controllers don't support bootblock booting.
+.Pp
+DraCo ROMs don't support bootblock booting from floppy disks.
+.Pp
+Most 68060 boards, unlike the DraCo, don't set the SysBase->AttnFlags
+bit for the 68060 CPU (a patch program which is called during
+AmigaOS startup does this).
+You need to add
+.Cd options BB060STUPIDROM
+to your kernel to boot on such a machine.
+.Pp
+There is currently no easy way to edit the RDB from within
+.Nx .
+Therefore, you have to use HDTOOLBOX or a similar tool to
+set the partition to bootable, "use custom bootblocks" and the number
+of bootblocks to 16 (for bootxx_ffsv1 or bootxx_ffsv2) or 2 (for bootxx_fd),
+at least the first time you install the bootblock.
+.Pp
+As normal
+.Xr dd 1
+is used to install the bootblock, you can only install onto
+your currently used root (or any other mounted) partition from single-user
+mode, or while otherwise running in insecure mode.