xref: /netbsd/usr.sbin/sysinst/install.c (revision 38c743d3)
1 /*	$NetBSD: install.c,v 1.25 2023/01/06 18:13:40 martin Exp $	*/
2 
3 /*
4  * Copyright 1997 Piermont Information Systems Inc.
5  * All rights reserved.
6  *
7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
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  * 3. The name of Piermont Information Systems Inc. may not be used to endorse
18  *    or promote products derived from this software without specific prior
19  *    written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31  * THE POSSIBILITY OF SUCH DAMAGE.
32  *
33  */
34 
35 /* install.c -- system installation. */
36 
37 #include <sys/param.h>
38 #include <stdio.h>
39 #include <curses.h>
40 #include "defs.h"
41 #include "msg_defs.h"
42 #include "menu_defs.h"
43 
44 /*
45  * helper function: call the md pre/post disklabel callback for all involved
46  * inner partitions and write them back.
47  * return net result
48  */
49 static bool
write_all_parts(struct install_partition_desc * install)50 write_all_parts(struct install_partition_desc *install)
51 {
52 	struct disk_partitions **allparts, *parts;
53 #ifndef NO_CLONES
54 	struct selected_partition *src;
55 #endif
56 	size_t num_parts, i, j;
57 	bool found, res;
58 
59 	/* pessimistic assumption: all partitions on different devices */
60 	allparts = calloc(install->num + install->num_write_back,
61 	    sizeof(*allparts));
62 	if (allparts == NULL)
63 		return false;
64 
65 	/* collect all different partition sets */
66 	num_parts = 0;
67 	for (i = 0; i < install->num_write_back; i++) {
68 		parts = install->write_back[i];
69 		if (parts == NULL)
70 			continue;
71 		found = false;
72 		for (j = 0; j < num_parts; j++) {
73 			if (allparts[j] == parts) {
74 				found = true;
75 				break;
76 			}
77 		}
78 		if (found)
79 			continue;
80 		allparts[num_parts++] = parts;
81 	}
82 	for (i = 0; i < install->num; i++) {
83 		parts = install->infos[i].parts;
84 		if (parts == NULL)
85 			continue;
86 		found = false;
87 		for (j = 0; j < num_parts; j++) {
88 			if (allparts[j] == parts) {
89 				found = true;
90 				break;
91 			}
92 		}
93 		if (found)
94 			continue;
95 		allparts[num_parts++] = parts;
96 	}
97 
98 	/* do multiple phases, abort anytime and go out, returning res */
99 
100 	res = true;
101 
102 	/* phase 1: pre disklabel - used to write MBR and similar */
103 	for (i = 0; i < num_parts; i++) {
104 		if (!md_pre_disklabel(install, allparts[i])) {
105 			res = false;
106 			goto out;
107 		}
108 	}
109 
110 	/* phase 2: write our partitions (used to be: disklabel) */
111 	for (i = 0; i < num_parts; i++) {
112 		if (!allparts[i]->pscheme->write_to_disk(allparts[i])) {
113 			res = false;
114 			goto out;
115 		}
116 	}
117 
118 	/* phase 3: now we may have a first chance to enable swap space */
119 	set_swap_if_low_ram(install);
120 
121 #ifndef NO_CLONES
122 	/* phase 4: copy any cloned partitions data (if requested) */
123 	for (i = 0; i < install->num; i++) {
124 		if ((install->infos[i].flags & PUIFLG_CLONE_PARTS) == 0
125 		    || install->infos[i].clone_src == NULL
126 		    || !install->infos[i].clone_src->with_data)
127 			continue;
128 		src = &install->infos[i].clone_src
129 		    ->selection[install->infos[i].clone_ndx];
130 		clone_partition_data(install->infos[i].parts,
131 		    install->infos[i].cur_part_id,
132 		    src->parts, src->id);
133 	}
134 #endif
135 
136 	/* phase 5: post disklabel (used for updating boot loaders) */
137 	for (i = 0; i < num_parts; i++) {
138 		if (!md_post_disklabel(install, allparts[i])) {
139 			res = false;
140 			goto out;
141 		}
142 	}
143 
144 out:
145 	free(allparts);
146 
147 	return res;
148 }
149 
150 /* Do the system install. */
151 
152 void
do_install(void)153 do_install(void)
154 {
155 	int find_disks_ret;
156 	int retcode = 0, res;
157 	struct install_partition_desc install = {};
158 
159 #ifndef NO_PARTMAN
160 	partman_go = -1;
161 #else
162 	partman_go = 0;
163 #endif
164 
165 #ifndef DEBUG
166 	msg_display(MSG_installusure);
167 	if (!ask_noyes(NULL))
168 		return;
169 #endif
170 
171 	memset(&install, 0, sizeof install);
172 
173 	/* Create and mount partitions */
174 	find_disks_ret = find_disks(msg_string(MSG_install), false);
175 	if (partman_go == 1) {
176 		if (partman(&install) < 0) {
177 			hit_enter_to_continue(MSG_abort_part, NULL);
178 			return;
179 		}
180 	} else if (find_disks_ret < 0)
181 		return;
182 	else {
183 	/* Classical partitioning wizard */
184 		partman_go = 0;
185 		clear();
186 		refresh();
187 
188 		if (check_swap(pm->diskdev, 0) > 0) {
189 			hit_enter_to_continue(MSG_swapactive, NULL);
190 			if (check_swap(pm->diskdev, 1) < 0) {
191 				hit_enter_to_continue(MSG_swapdelfailed, NULL);
192 				if (!debug)
193 					return;
194 			}
195 		}
196 
197 		for (;;) {
198 			if (md_get_info(&install)) {
199 				res = md_make_bsd_partitions(&install);
200 				if (res == -1) {
201 					pm->parts = NULL;
202 					continue;
203 				} else if (res == 1) {
204 					break;
205 				}
206 			}
207 			hit_enter_to_continue(MSG_abort_inst, NULL);
208 			goto error;
209 		}
210 
211 		/* Last chance ... do you really want to do this? */
212 		clear();
213 		refresh();
214 		msg_fmt_display(MSG_lastchance, "%s", pm->diskdev);
215 		if (!ask_noyes(NULL))
216 			goto error;
217 
218 		if ((!pm->no_part && !write_all_parts(&install)) ||
219 		    make_filesystems(&install) ||
220 		    make_fstab(&install) != 0 ||
221 		    md_post_newfs(&install) != 0)
222 			goto error;
223 	}
224 
225 	/* Unpack the distribution. */
226 	process_menu(MENU_distset, &retcode);
227 	if (retcode == 0)
228 		goto error;
229 	if (get_and_unpack_sets(0, MSG_disksetupdone,
230 	    MSG_extractcomplete, MSG_abortinst) != 0)
231 		goto error;
232 
233 	if (md_post_extract(&install, false) != 0)
234 		goto error;
235 
236 	root_pw_setup();
237 #if CHECK_ENTROPY
238 	do_add_entropy();
239 #endif
240 	do_configmenu(&install);
241 
242 	sanity_check();
243 
244 	md_cleanup_install(&install);
245 
246 	hit_enter_to_continue(MSG_instcomplete, NULL);
247 
248 error:
249 	free_install_desc(&install);
250 }
251