1#	$OpenBSD: install.md,v 1.62 2023/10/11 17:53:52 kn Exp $
2#
3# Copyright (c) 1996 The NetBSD Foundation, Inc.
4# All rights reserved.
5#
6# This code is derived from software contributed to The NetBSD Foundation
7# by Jason R. Thorpe.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17#
18# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
22# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28# POSSIBILITY OF SUCH DAMAGE.
29#
30#
31# machine dependent section of installation/upgrade script.
32#
33
34MDBOOTSR=y
35MDXAPERTURE=2
36MDXDM=y
37NCPU=$(sysctl -n hw.ncpufound)
38
39if dmesg | grep -q 'efifb0 at mainbus0'; then
40	MDEFI=y
41fi
42
43md_installboot() {
44	if ! installboot -r /mnt ${1}; then
45		echo "\nFailed to install bootblocks."
46		echo "You will not be able to boot OpenBSD from ${1}."
47		exit
48	fi
49}
50
51md_prep_fdisk() {
52	local _disk=$1 _q _d
53
54	while :; do
55		_d=whole
56		_q="Use (W)hole disk MBR, whole disk (G)PT"
57
58		[[ $MDEFI == y ]] && _d=gpt
59
60		if disk_has $_disk mbr || disk_has $_disk gpt; then
61			fdisk $_disk
62			if disk_has $_disk mbr openbsd ||
63				disk_has $_disk gpt openbsd; then
64				_q="$_q, (O)penBSD area"
65				_d=OpenBSD
66			fi
67		else
68			echo "No valid MBR or GPT."
69		fi
70
71		ask "$_q or (E)dit?" "$_d"
72		case $resp in
73		[wW]*)
74			echo -n "Setting OpenBSD MBR partition to whole $_disk..."
75			fdisk -iy $_disk >/dev/null
76			echo "done."
77			return ;;
78		[gG]*)
79			if [[ $MDEFI != y ]]; then
80				ask_yn "An EFI/GPT disk may not boot. Proceed?" || continue
81			fi
82
83			echo -n "Setting OpenBSD GPT partition to whole $_disk..."
84			fdisk -gy -b 532480 $_disk >/dev/null
85			echo "done."
86			return ;;
87		[eE]*)
88			if disk_has $_disk gpt; then
89				# Manually configure the GPT.
90				cat <<__EOT
91
92You will now create two GPT partitions. The first must have an id
93of 'EF' and be large enough to contain the OpenBSD boot programs,
94at least 532480 blocks. The second must have an id of 'A6' and will
95contain your OpenBSD data. Neither may overlap other partitions.
96Inside the fdisk command, the 'manual' command describes the fdisk
97commands in detail.
98
99$(fdisk $_disk)
100__EOT
101				fdisk -e $_disk
102
103				if ! disk_has $_disk gpt openbsd; then
104					echo -n "No OpenBSD partition in GPT,"
105				elif ! disk_has $_disk gpt efisys; then
106					echo -n "No EFI Sys partition in GPT,"
107				else
108					return
109				fi
110			else
111				# Manually configure the MBR.
112				cat <<__EOT
113
114You will now create a single MBR partition to contain your OpenBSD data. This
115partition must have an id of 'A6'; must *NOT* overlap other partitions; and
116must be marked as the only active partition.  Inside the fdisk command, the
117'manual' command describes all the fdisk commands in detail.
118
119$(fdisk $_disk)
120__EOT
121				fdisk -e $_disk
122				disk_has $_disk mbr openbsd && return
123				echo -n "No OpenBSD partition in MBR,"
124			fi
125			echo " try again." ;;
126		[oO]*)
127			[[ $_d == OpenBSD ]] || continue
128			# Is this a boot disk?
129			if [[ $_disk == $ROOTDISK ]] &&
130			    disk_has $_disk gpt && ! disk_has $_disk gpt efisys; then
131				echo "No EFI Sys partition in GPT, try again."
132				$AUTO && exit 1
133				continue
134			fi
135			return ;;
136		esac
137	done
138}
139
140md_prep_disklabel() {
141	local _disk=$1 _f=/tmp/i/fstab.$1
142
143	md_prep_fdisk $_disk
144
145	disklabel_autolayout $_disk $_f || return
146	[[ -s $_f ]] && return
147
148	# Edit disklabel manually.
149	# Abandon all hope, ye who enter here.
150	disklabel -F $_f -E $_disk
151}
152
153md_congrats() {
154}
155
156md_consoleinfo() {
157	local _u _d=com
158
159	for _u in $(scan_dmesg "/^$_d\([0-9]\) .*/s//\1/p"); do
160		if [[ $_d$_u == $CONSOLE || -z $CONSOLE ]]; then
161			CDEV=$_d$_u
162			CPROM=com$_u
163			CTTY=tty0$_u
164			return
165		fi
166	done
167}
168