install.md revision 1.8 
1#	$OpenBSD: install.md,v 1.8 2023/03/07 17:29:42 kn Exp $
2#
3#
4# Copyright (c) 1996 The NetBSD Foundation, Inc.
5# All rights reserved.
6#
7# This code is derived from software contributed to The NetBSD Foundation
8# by Jason R. Thorpe.
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#
19# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
23# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29# POSSIBILITY OF SUCH DAMAGE.
30#
31#
32# machine dependent section of installation/upgrade script.
33#
34
35MDBOOTSR=y
36NCPU=$(sysctl -n hw.ncpufound)
37
38md_installboot() {
39	if ! installboot -r /mnt ${1}; then
40		echo "\nFailed to install bootblocks."
41		echo "You will not be able to boot OpenBSD from ${1}."
42		exit
43	fi
44}
45
46md_prep_fdisk() {
47	local _disk=$1 _d _type=MBR
48
49	local bootpart=
50	local bootparttype="C"
51	local bootsectorstart="32768"
52	local bootsectorsize="32768"
53	local bootfstype="msdos"
54
55	while :; do
56		_d=whole
57		if disk_has $_disk gpt; then
58			[[ $_disk == $ROOTDISK ]] && bootpart="-b ${bootsectorsize}"
59			_type=GPT
60			fdisk $_disk
61		elif disk_has $_disk mbr; then
62			fdisk $_disk
63		else
64			echo "MBR has invalid signature; not showing it."
65		fi
66		ask "Use (W)hole disk or (E)dit the ${_type}?" "$_d"
67		case $resp in
68		[wW]*)
69			echo -n "Creating a ${bootfstype} partition and an OpenBSD partition for rest of $_disk..."
70			if disk_has $_disk gpt biosboot; then
71				# Preserve BIOS boot partition as it might
72				# contain a PolarFire SoC HSS payload.
73				fdisk -Ay ${bootpart} ${_disk} >/dev/null
74			elif disk_has $_disk gpt; then
75				fdisk -gy ${bootpart} ${_disk} >/dev/null
76			else
77				fdisk -iy -b "${bootsectorsize}@${bootsectorstart}:${bootparttype}" ${_disk} >/dev/null
78			fi
79			echo "done."
80			installboot -p $_disk
81			return ;;
82		[eE]*)
83			if disk_has $_disk gpt; then
84				# Manually configure the GPT.
85				cat <<__EOT
86
87You will now create two GPT partitions. The first must have an id
88of 'EF' and be large enough to contain the OpenBSD boot programs,
89at least 32768 blocks. The second must have an id of 'A6' and will
90contain your OpenBSD data. Neither may overlap other partitions.
91Inside the fdisk command, the 'manual' command describes the fdisk
92commands in detail.
93
94$(fdisk $_disk)
95__EOT
96				fdisk -e $_disk
97
98				if ! disk_has $_disk gpt openbsd; then
99					echo -n "No OpenBSD partition in GPT,"
100				elif ! disk_has $_disk gpt efisys; then
101					echo -n "No EFI Sys partition in GPT,"
102				else
103					return
104				fi
105			else
106				# Manually configure the MBR.
107				cat <<__EOT
108
109You will now create one MBR partition to contain your OpenBSD data
110and one MBR partition on which the OpenBSD boot program is located.
111Neither partition will overlap any other partition.
112
113The OpenBSD MBR partition will have an id of 'A6' and the boot MBR
114partition will have an id of '${bootparttype}' (${bootfstype}).
115The boot partition will be at least 16MB and be the first 'MSDOS'
116partition on the disk.
117
118$(fdisk ${_disk})
119__EOT
120				fdisk -e ${_disk}
121				disk_has $_disk mbr openbsd && return
122				echo -n "No OpenBSD partition in MBR,"
123			fi
124			echo " try again." ;;
125		esac
126	done
127}
128
129md_prep_disklabel() {
130	local _disk=$1 _f=/tmp/i/fstab.$1
131
132	md_prep_fdisk $_disk
133
134	disklabel_autolayout $_disk $_f || return
135	[[ -s $_f ]] && return
136
137	# Edit disklabel manually.
138	# Abandon all hope, ye who enter here.
139	disklabel -F $_f -E $_disk
140}
141
142md_congrats() {
143}
144
145md_consoleinfo() {
146	CTTY=console
147	DEFCONS=y
148	case $CSPEED in
149	9600|19200|38400|57600|115200|1500000)
150		;;
151	*)
152		CSPEED=115200;;
153	esac
154}
155