xref: /openbsd/distrib/macppc/ramdisk/install.md (revision cecf84d4) 
1#	$OpenBSD: install.md,v 1.57 2015/05/04 19:55:26 rpe 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
35MDXAPERTURE=2
36NCPU=$(sysctl -n hw.ncpufound)
37
38((NCPU > 1)) && { DEFAULTSETS="bsd bsd.rd bsd.mp"; SANESETS="bsd bsd.mp"; }
39
40md_installboot() {
41	local _disk=$1
42
43	# If there is an MSDOS partition on the boot disk, copy ofwboot
44	# into it.
45	if fdisk $_disk | grep -q 'Signature: 0xAA55'; then
46		if fdisk $_disk | grep -q '^..: 06 '; then
47			if mount /dev/${_disk}i /mnt2 >/dev/null 2>&1; then
48				# Use cat to avoid holes created by cp(1)
49				cat /mnt/usr/mdec/ofwboot > /mnt2/ofwboot
50				umount /mnt2
51			fi
52		fi
53	fi
54}
55
56md_has_hfs () {
57	pdisk -l /dev/$1c 2>&1 | grep -q "^Partition map "
58}
59
60md_has_hfs_openbsd () {
61	pdisk -l /dev/$1c 2>&1 | grep -q " OpenBSD OpenBSD "
62}
63
64md_prep_MBR() {
65	local _disk=$1 _q _d
66
67	if md_has_hfs $_disk; then
68		cat <<__EOT
69
70WARNING: putting an MBR partition table on $_disk will DESTROY the existing HFS
71         partitions and HFS partition table:
72$(pdisk -l /dev/${_disk}c)
73
74__EOT
75		ask_yn "Are you *sure* you want an MBR partition table on $_disk?"
76		[[ $resp == n ]] && return 1
77	fi
78
79	while :; do
80		_d=whole
81		if fdisk $_disk | grep -q 'Signature: 0xAA55'; then
82			fdisk $_disk
83			if fdisk $_disk | grep -q '^..: A6 '; then
84				_q=", use the (O)penBSD area,"
85				_d=OpenBSD
86			fi
87		else
88			echo "MBR has invalid signature; not showing it."
89		fi
90		ask "Use (W)hole disk$_q or (E)dit the MBR?" "$_d"
91		case $resp in
92		w*|W*)
93			echo -n "Creating a 1MB DOS partition and an OpenBSD partition for rest of $_disk..."
94			dd if=/dev/zero of=/dev/r${_disk}c bs=1m count=1
95			fdisk -e $_disk <<__EOT >/dev/null
96reinit
97update
98write
99quit
100__EOT
101			echo "done."
102			break ;;
103		e*|E*)
104			# Manually configure the MBR.
105			cat <<__EOT
106
107You will now create one MBR partition to contain your OpenBSD data
108and one MBR partition to contain the program that Open Firmware uses
109to boot OpenBSD. Neither partition will overlap any other partition.
110
111The OpenBSD MBR partition will have an id of 'A6' and the boot MBR
112partition will have an id of '06' (DOS). The boot partition will be
113at least 1MB and be marked as the *only* active partition.
114
115$(fdisk $_disk)
116__EOT
117			fdisk -e $_disk
118			fdisk $_disk | grep -q '^..: 06 ' || \
119				{ echo "\nNo DOS (id 06) partition!\n"; continue; }
120			fdisk $_disk | grep -q '^\*.: 06 ' || \
121				{ echo "\nNo active DOS partition!\n"; continue; }
122			fdisk $_disk | grep -q "^..: A6 " || \
123				{ echo "\nNo OpenBSD (id A6) partition!\n"; continue; }
124			break ;;
125		o*|O*)	break ;;
126		esac
127	done
128
129	disklabel $_disk 2>/dev/null | grep -q "^  i:" || disklabel -w -d $_disk
130	newfs -t msdos ${_disk}i
131}
132
133md_prep_HFS() {
134	local _disk=$1 _d _q
135
136	while :; do
137		_q=
138		_d=Modify
139		md_has_hfs_openbsd $_disk && \
140			{ _q="Use the (O)penBSD partition, "; _d=OpenBSD; }
141		pdisk -l /dev/${_disk}c
142		ask "$_q(M)odify a partition or (A)bort?" "$_d"
143		case $resp in
144		a*|A*)	return 1 ;;
145		o*|O*)	return 0 ;;
146		m*|M*)	pdisk /dev/${_disk}c
147			md_has_hfs_openbsd $_disk && break
148			echo "\nNo 'OpenBSD'-type partition named 'OpenBSD'!"
149		esac
150	done
151
152	return 0;
153}
154
155md_prep_disklabel() {
156	local _disk=$1 _f _op
157
158	PARTTABLE=
159	while [[ -z $PARTTABLE ]]; do
160		resp=MBR
161		md_has_hfs $_disk && ask "Use HFS or MBR partition table?" HFS
162		case $resp in
163		m|mbr|M|MBR)
164			md_prep_MBR $_disk || continue
165			PARTTABLE=MBR
166			;;
167		h|hfs|H|HFS)
168			md_prep_HFS $_disk || continue
169			PARTTABLE=HFS
170			;;
171		esac
172	done
173
174	_f=/tmp/fstab.$_disk
175	if [[ $_disk == $ROOTDISK ]]; then
176		if $AUTO && get_disklabel_template; then
177			disklabel -T /disklabel.auto $FSTABFLAG $_f -w -A $_disk && return
178			echo "Autopartitioning failed"
179			exit 1
180		fi
181		while :; do
182			echo "The auto-allocated layout for $_disk is:"
183			disklabel -h -A $_disk | egrep "^#  |^  [a-p]:"
184			ask "Use (A)uto layout, (E)dit auto layout, or create (C)ustom layout?" a
185			case $resp in
186			a*|A*)	_op=-w ;;
187			e*|E*)	_op=-E ;;
188			c*|C*)	break ;;
189			*)	continue ;;
190			esac
191			disklabel $FSTABFLAG $_f $_op -A $_disk
192			return
193		done
194	fi
195
196	cat <<__EOT
197
198You will now create an OpenBSD disklabel inside the OpenBSD $PARTTABLE
199partition. The disklabel defines how OpenBSD splits up the $PARTTABLE partition
200into OpenBSD partitions in which filesystems and swap space are created.
201You must provide each filesystem's mountpoint in this program.
202
203The offsets used in the disklabel are ABSOLUTE, i.e. relative to the
204start of the disk, NOT the start of the OpenBSD $PARTTABLE partition.
205
206__EOT
207
208	disklabel $FSTABFLAG $_f -E $_disk
209}
210
211md_congrats() {
212	cat <<__EOT
213
214INSTALL.$ARCH describes how to configure Open Firmware to boot OpenBSD. The
215command to boot OpenBSD will be something like 'boot hd:,ofwboot /bsd'.
216__EOT
217	if [[ $PARTTABLE == HFS ]]; then
218		cat <<__EOT
219
220NOTE: You must use MacOS to copy 'ofwboot' from the OpenBSD install media to
221the first HFS partition of $ROOTDISK.
222__EOT
223	fi
224
225}
226
227md_consoleinfo() {
228	local _u _d=zstty
229
230	for _u in $(scan_dmesg "/^$_d\([0-9]\) .*/s//\1/p"); do
231		if [[ $_d$_u == $CONSOLE || -z $CONSOLE ]]; then
232			CDEV=$_d$_u
233			: ${CSPEED:=57600}
234			set -- a b c d e f g h i j
235			shift $_u
236			CTTY=tty$1
237			return
238		fi
239	done
240}
241