1 /*
2  * Copyright (c)2004,2015 The DragonFly Project.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  *   Redistributions of source code must retain the above copyright
9  *   notice, this list of conditions and the following disclaimer.
10  *
11  *   Redistributions in binary form must reproduce the above copyright
12  *   notice, this list of conditions and the following disclaimer in
13  *   the documentation and/or other materials provided with the
14  *   distribution.
15  *
16  *   Neither the name of the DragonFly Project nor the names of its
17  *   contributors may be used to endorse or promote products derived
18  *   from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31  * OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 /*
35  * fn_install.c
36  * Installer Function : Install OS Files.
37  * $Id: fn_install.c,v 1.74 2006/04/18 19:43:48 joerg Exp $
38  */
39 
40 #include <libgen.h>
41 #include <string.h>
42 
43 #define SOURCES_CONF_FILE "usr/share/installer/sources.conf"
44 
45 #ifdef ENABLE_NLS
46 #include <libintl.h>
47 #define _(String) gettext (String)
48 #else
49 #define _(String) (String)
50 #endif
51 
52 #include "libaura/mem.h"
53 #include "libaura/buffer.h"
54 #include "libaura/fspred.h"
55 
56 #include "libdfui/dfui.h"
57 #include "libdfui/system.h"
58 
59 #include "libinstaller/commands.h"
60 #include "libinstaller/confed.h"
61 #include "libinstaller/diskutil.h"
62 #include "libinstaller/functions.h"
63 #include "libinstaller/uiutil.h"
64 
65 #include "flow.h"
66 #include "pathnames.h"
67 #include "fn.h"
68 
69 /*
70  * NOTE: Even though /var/run doesn't need to be backed up, nearly all
71  *	 services depend on it so it is best to leave it on the root.
72  */
73 static const char *nullfs_mountpt[] = {
74 	"/usr/obj", "/var/crash", "/var/cache",
75 	"/var/spool", "/var/log", "/var/tmp",
76 	NULL };
77 static const char *nullfs_mountname[] = {
78 	"/build/usr.obj", "/build/var.crash", "/build/var.cache",
79 	"/build/var.spool", "/build/var.log", "/build/var.tmp",
80 	NULL };
81 
82 static void
83 handle_altfs(struct i_fn_args *a, struct commands *cmds)
84 {
85 	int i;
86 
87 	/*
88 	 * Create directories for null mounts if not specified as a partition.
89 	 * (null mounts are from /build)
90 	 */
91 	for (i = 0; nullfs_mountpt[i]; ++i) {
92 		if (subpartition_find(storage_get_selected_slice(a->s), "%s", nullfs_mountpt[i]) != NULL)
93 			continue;
94 
95 		/*
96 		 * Create directory infrastructure for null-mount if
97 		 * necessary, then issue the null mount(s).
98 		 */
99 		command_add(cmds, "%s%s -p %smnt%s",
100 			    a->os_root, cmd_name(a, "MKDIR"),
101 			    a->os_root, nullfs_mountname[i]);
102 		command_add(cmds, "%s%s -p %smnt%s",
103 			    a->os_root, cmd_name(a, "MKDIR"),
104 			    a->os_root, nullfs_mountpt[i]);
105 		command_add(cmds, "%s%s %smnt%s %smnt%s",
106 		    a->os_root, cmd_name(a, "MOUNT_NULL"),
107 		    a->os_root, nullfs_mountname[i],
108 		    a->os_root, nullfs_mountpt[i]);
109 	}
110 
111 	/*
112 	 * Create directory for /tmp and tmpfs mount if not specified as
113 	 * a partition.
114 	 */
115 	if (subpartition_find(storage_get_selected_slice(a->s), "%s", "/tmp") == NULL) {
116 		command_add(cmds, "%s%s -p %smnt/tmp",
117 			    a->os_root, cmd_name(a, "MKDIR"), a->os_root);
118 		command_add(cmds, "%s%s 1777 %smnt/tmp",
119 			    a->os_root, cmd_name(a, "CHMOD"), a->os_root);
120 		command_add(cmds, "%s%s dummy %smnt/tmp",
121 			    a->os_root, cmd_name(a, "MOUNT_TMPFS"), a->os_root);
122 	}
123 }
124 
125 static void
126 unmount_altfs(struct i_fn_args *a __unused, struct commands *cmds __unused)
127 {
128 	return;
129 #if 0
130 	int i;
131 
132 	/*
133 	 * Unmount null mounts
134 	 */
135 	i = sizeof(nullfs_mountpt) / sizeof(nullfs_mountpt[0]) - 1;
136 	while (i >= 0) {
137 		if (subpartition_find(storage_get_selected_slice(a->s), "%s", nullfs_mountpt[i]) != NULL)
138 			continue;
139 
140 		/*
141 		 * Create directory infrastructure for null-mount if
142 		 * necessary, then issue the null mount(s).
143 		 */
144 		command_add(cmds, "%s%s %smnt%s",
145 			    a->os_root, cmd_name(a, "UMOUNT"),
146 			    a->os_root, nullfs_mountpt[i]);
147 		--i;
148 	}
149 
150 	/*
151 	 * Unmount tmpfs mounts
152 	 */
153 	if (subpartition_find(storage_get_selected_slice(a->s), "%s", "/tmp") == NULL) {
154 		command_add(cmds, "%s%s -p %smnt%s",
155 			    a->os_root, cmd_name(a, "UMOUNT"),
156 			    a->os_root, "/tmp");
157 	}
158 #endif
159 }
160 
161 /*
162  * fn_install_os: actually put DragonFly on a disk.
163  */
164 void
165 fn_install_os(struct i_fn_args *a)
166 {
167 	struct subpartition *sp, *spnext;
168 	struct commands *cmds;
169 	struct command *cmd;
170 	int i, seen_it, prefix, j, needcrypt;
171 	FILE *sources_conf;
172 	char line[256];
173 	char cp_src[64][256];
174 	char file_path[256];
175 	char *string;
176 	int lines = 0;
177 	int nfsidx;
178 
179 	/*
180 	 * Read SOURCES_CONF_FILE and populate our copy sources.
181 	 */
182 	snprintf(file_path, 256, "%s%s", a->os_root, SOURCES_CONF_FILE);
183 	sources_conf = fopen(file_path, "r");
184 	i_log(a, "Reading %s", file_path);
185 	while(fgets(line, 256, sources_conf) != NULL && lines < 63) {
186 		if(strlen(line)>0)
187 			line[strlen(line)-1] = '\0';
188 		strlcpy(cp_src[lines], line, 256);
189 		i_log(a,"Adding %s to copy source table.", cp_src[lines]);
190 		lines++;
191 	}
192 	i_log(a,"Added %i total items to copy source table.", lines);
193 	strcpy(cp_src[lines], "");
194 	fclose(sources_conf);
195 
196 	cmds = commands_new();
197 
198 	/*
199 	 * If swap isn't mounted yet, mount it.
200 	 */
201 	if (measure_activated_swap(a) == 0) {
202 		for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
203 		    sp != NULL; sp = subpartition_next(sp)) {
204 			if (!subpartition_is_swap(sp))
205 				continue;
206 			command_add(cmds, "%s%s /dev/%s",
207 			    a->os_root,
208 			    cmd_name(a, "SWAPON"),
209 			    subpartition_is_encrypted(sp) ?
210 			    "mapper/swap" : subpartition_get_device_name(sp));
211 		}
212 	}
213 
214 	/*
215 	 * Unmount anything already mounted on /mnt.
216 	 */
217 	unmount_altfs(a, cmds);
218 	unmount_all_under(a, cmds, "%smnt", a->os_root);
219 
220 	/* Check if crypto support is needed */
221 	needcrypt = 0;
222 	for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
223 	     sp != NULL; sp = subpartition_next(sp)) {
224 		if (subpartition_is_encrypted(sp)) {
225 			needcrypt = 1;
226 			break;
227 		}
228 	}
229 
230 	for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
231 	     sp != NULL; sp = subpartition_next(sp)) {
232 		if (strcmp(subpartition_get_mountpoint(sp), "/") == 0 ||
233 		    strcmp(subpartition_get_mountpoint(sp), "/build") == 0) {
234 			/* make sure mountpoint directory exists */
235 			command_add(cmds, "%s%s -p %smnt%s",
236 				    a->os_root, cmd_name(a, "MKDIR"),
237 				    a->os_root,
238 				    subpartition_get_mountpoint(sp));
239 			switch(use_hammer) {
240 			case 1:
241 				command_add(cmds, "%s%s /dev/%s %smnt%s",
242 				    a->os_root, cmd_name(a, "MOUNT_HAMMER"),
243 				    (subpartition_is_encrypted(sp) ?
244 					subpartition_get_mapper_name(sp, 0) :
245 					subpartition_get_device_name(sp)),
246 				    a->os_root,
247 				    subpartition_get_mountpoint(sp));
248 				break;
249 			case 2:
250 				command_add(cmds, "%s%s /dev/%s %smnt%s",
251 				    a->os_root, cmd_name(a, "MOUNT_HAMMER2"),
252 				    (subpartition_is_encrypted(sp) ?
253 					subpartition_get_mapper_name(sp, 0) :
254 					subpartition_get_device_name(sp)),
255 				    a->os_root,
256 				    subpartition_get_mountpoint(sp));
257 				break;
258 			case 0:
259 			default:
260 				command_add(cmds, "%s%s /dev/%s %smnt%s",
261 				    a->os_root, cmd_name(a, "MOUNT"),
262 				    (subpartition_is_encrypted(sp) ?
263 					subpartition_get_mapper_name(sp, 0) :
264 					subpartition_get_device_name(sp)),
265 				    a->os_root,
266 				    subpartition_get_mountpoint(sp));
267 				break;
268 			}
269 		}
270 	}
271 
272 	/*
273 	 * Create mount points and mount subpartitions on them.
274 	 */
275 	for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
276 	     sp != NULL; sp = subpartition_next(sp)) {
277 		if (subpartition_is_swap(sp)) {
278 			/*
279 			 * Set this subpartition as the dump device.
280 			 */
281 			command_add(cmds, "%s%s off",
282 			    a->os_root, cmd_name(a, "DUMPON"));
283 			command_add(cmds, "%s%s -v /dev/%s",
284 			    a->os_root, cmd_name(a, "DUMPON"),
285 			    subpartition_is_encrypted(sp) ?
286 			    "mapper/swap" : subpartition_get_device_name(sp));
287 
288 			asprintf(&string, "/dev/%s",
289 			    subpartition_is_encrypted(sp) ?
290 			    "mapper/swap" : subpartition_get_device_name(sp));
291 			config_var_set(rc_conf, "dumpdev", string);
292 			free(string);
293 			continue;
294 		}
295 
296 		/*
297 		 * mount everything except / and /build (which have already
298 		 * been mounted).  This should also get /boot.
299 		 */
300 		if (strcmp(subpartition_get_mountpoint(sp), "/") != 0 &&
301 		    strcmp(subpartition_get_mountpoint(sp), "/build") != 0) {
302 			/* make sure mountpoint directory exists */
303 			command_add(cmds, "%s%s -p %smnt%s",
304 			    a->os_root, cmd_name(a, "MKDIR"),
305 			    a->os_root,
306 			    subpartition_get_mountpoint(sp));
307 			/* Don't mount it if it's TMPFS-backed. */
308 			if (subpartition_is_tmpfsbacked(sp))
309 				continue;
310 			command_add(cmds, "%s%s /dev/%s %smnt%s",
311 			    a->os_root, cmd_name(a, "MOUNT"),
312 			    (subpartition_is_encrypted(sp) ?
313 				subpartition_get_mapper_name(sp, 0) :
314 				subpartition_get_device_name(sp)),
315 			    a->os_root,
316 			    subpartition_get_mountpoint(sp));
317 		}
318 	}
319 
320 	/*
321 	 * Take care of tmpfs and null-mounts from /build
322 	 */
323 	handle_altfs(a, cmds);
324 
325 	/*
326 	 * Actually copy files now.
327 	 */
328 	for (i = 0; cp_src[i] != NULL && cp_src[i][0] != '\0'; i++) {
329 		char *src, *dest, *dn, *tmp_dest;
330 
331 		dest = cp_src[i];
332 
333 		/*
334 		 * If dest would be on an TMPFS-backed
335 		 * mountpoint, don't bother copying it.
336 		 */
337 		sp = subpartition_of(storage_get_selected_slice(a->s),
338 				     "%s%s", a->os_root, &dest[1]);
339 		if (sp != NULL && subpartition_is_tmpfsbacked(sp)) {
340 			continue;
341 		}
342 
343 		/*
344 		 * Create intermediate directories, if needed.
345 		 */
346 		tmp_dest = aura_strdup(dest);
347 		dn = dirname(tmp_dest);
348 		if (is_dir("%s%s", a->os_root, &dn[1]) &&
349 		    !is_dir("%smnt%s", a->os_root, dn)) {
350 			command_add(cmds, "%s%s -p %smnt%s",
351 			    a->os_root, cmd_name(a, "MKDIR"),
352 			    a->os_root, dn);
353 		}
354 		aura_free(tmp_dest, "directory name");
355 
356 		/*
357 		 * If a directory by the same name but with the suffix
358 		 * ".hdd" exists on the installation media, cpdup that
359 		 * instead.  This is particularly useful with /etc, which
360 		 * may have significantly different behaviour on the
361 		 * live CD compared to a standard HDD boot.
362 		 */
363 		if (is_dir("%s%s.hdd", a->os_root, &dest[1]))
364 			asprintf(&src, "%s.hdd", &dest[1]);
365 		else
366 			asprintf(&src, "%s", &dest[1]);
367 
368 		/*
369 		 * Cpdup the chosen file or directory onto the HDD.
370 		 * if it exists on the source.
371 		 */
372 		if (is_dir("%s%s", a->os_root, src) ||
373 		    is_file("%s%s", a->os_root, src)) {
374 			cmd = command_add(cmds, "%s%s %s%s %smnt%s",
375 			    a->os_root, cmd_name(a, "CPDUP"),
376 			    a->os_root, src,
377 			    a->os_root, dest);
378 			command_set_log_mode(cmd, COMMAND_LOG_QUIET);
379 		}
380 	}
381 
382 	/*
383 	 * Now, because cpdup does not cross mount points,
384 	 * we must copy anything that the user might've made a
385 	 * seperate mount point for (e.g. /usr/libdata/lint.)
386 	 */
387 	nfsidx = 0;
388 	sp = NULL;
389 	spnext = slice_subpartition_first(storage_get_selected_slice(a->s));
390 
391 	for (;;) {
392 		const char *mountpt;
393 
394 		/*
395 		 * Iterate nullfs mounts and then partitions
396 		 */
397 		if (nullfs_mountpt[nfsidx]) {
398 			mountpt = nullfs_mountpt[nfsidx];
399 			++nfsidx;
400 		} else {
401 			sp = spnext;
402 			if (sp == NULL)
403 				break;
404 			spnext = subpartition_next(sp);
405 			mountpt = subpartition_get_mountpoint(sp);
406 		}
407 
408 		/*
409 		 * If the subpartition is a swap subpartition or an
410 		 * TMPFS-backed mountpoint, don't try to copy anything
411 		 * into it.
412 		 */
413 		if (sp) {
414 			if (subpartition_is_swap(sp) ||
415 			    subpartition_is_tmpfsbacked(sp)) {
416 				continue;
417 			}
418 		}
419 
420 		/*
421 		 * If the mountpoint doesn't even exist on the installation
422 		 * medium, don't try to copy anything from it!  We assume
423 		 * it's an empty subpartition for the user's needs.
424 		 */
425 		if (!is_dir("%s%s", a->os_root, mountpt + 1))
426 			continue;
427 
428 		/*
429 		 * Don't bother copying the mountpoint IF:
430 		 * - we've already said to copy it, or something besides it
431 		 *   (it's a prefix of something in cp_src); or
432 		 * - we haven't said to copy it
433 		 *   (nothing in cp_src is a prefix of it.)
434 		 */
435 		seen_it = 0;
436 		prefix = 0;
437 		for (i = 0; cp_src[i] != NULL && cp_src[i][0] != '\0'; i++) {
438 			if (strncmp(mountpt, cp_src[i],
439 			    strlen(mountpt)) == 0) {
440 				seen_it = 1;
441 				break;
442 			}
443 			if (strncmp(cp_src[i], mountpt, strlen(cp_src[i])) == 0) {
444 				prefix = 1;
445 			}
446 		}
447 		if (seen_it || !prefix)
448 			continue;
449 
450 		/*
451 		 * Otherwise, cpdup the subpartition.
452 		 *
453 		 * XXX check for .hdd-extended source dirs here, too,
454 		 * eventually - but for now, /etc.hdd will never be
455 		 * the kind of tricky sub-mount-within-a-mount-point
456 		 * that this part of the code is meant to handle.
457 		 */
458 		cmd = command_add(cmds, "%s%s %s%s %smnt%s",
459 			a->os_root, cmd_name(a, "CPDUP"),
460 			a->os_root, mountpt + 1,
461 			a->os_root, mountpt);
462 		command_set_log_mode(cmd, COMMAND_LOG_QUIET);
463 	}
464 
465 	/*
466 	 * XXX This should not be needed. It was added to fix /var/run/sem
467 	 *     issues, see d4c25c30fc5f9ffeb258150a9590ef56954435bb.
468 	 *
469 	 * Ensure /var has all directories it needs.
470 	 */
471 	command_add(cmds, "%s%s -deiU -f %setc/mtree/BSD.var.dist -p %smnt/var",
472 	    a->os_root, cmd_name(a, "MTREE"), a->os_root, a->os_root);
473 
474 	/*
475 	 * Create symlinks.
476 	 */
477 
478 	/* Take care of /sys. */
479 	command_add(cmds, "%s%s -s usr/src/sys %smnt/sys",
480 	    a->os_root, cmd_name(a, "LN"), a->os_root);
481 
482 	/*
483 	 * Make sure /home exists (goes on root mount otherwise).
484 	 */
485 	command_add(cmds, "%s%s -p %smnt/home",
486 		    a->os_root, cmd_name(a, "MKDIR"), a->os_root);
487 
488 	/*
489 	 * XXX check for other possible combinations too?
490 	 */
491 
492 	/*
493 	 * Clean up.  In case some file didn't make it, use rm -f
494 	 */
495 	command_add(cmds, "%s%s -f %smnt/boot/loader.conf",
496 	    a->os_root, cmd_name(a, "RM"), a->os_root);
497 	command_add(cmds, "%s%s -f %smnt/tmp/install.log",
498 	    a->os_root, cmd_name(a, "RM"), a->os_root);
499 	command_add(cmds, "%s%s -f %smnt/tmp/t[12]",
500 	    a->os_root, cmd_name(a, "RM"), a->os_root);
501 	command_add(cmds, "%s%s -f %smnt/tmp/test_in",
502 	    a->os_root, cmd_name(a, "RM"), a->os_root);
503 	command_add(cmds, "%s%s -f %smnt/tmp/test_out",
504 	    a->os_root, cmd_name(a, "RM"), a->os_root);
505 
506 	/*
507 	 * Copy pristine versions over any files we might have installed.
508 	 * This allows the resulting file tree to be customized.
509 	 */
510 	for (i = 0; cp_src[i] != NULL && cp_src[i][0] != '\0'; i++) {
511 		char *src, *dest, *dn, *tmp_dest;
512 
513 		src = cp_src[i];
514 		dest = cp_src[i];
515 
516 		/*
517 		 * Get the directory that the desired thing to
518 		 * copy resides in.
519 		 */
520 		tmp_dest = aura_strdup(dest);
521 		dn = dirname(tmp_dest);
522 
523 		/*
524 		 * If this dir doesn't exist in PRISTINE_DIR
525 		 * on the install media, just skip it.
526 		 */
527 		if (!is_dir("%s%s%s", a->os_root, PRISTINE_DIR, dn)) {
528 			aura_free(tmp_dest, _("directory name"));
529 			continue;
530 		}
531 
532 		/*
533 		 * Create intermediate directories, if needed.
534 		 */
535 		if (!is_dir("%smnt%s", a->os_root, dn)) {
536 			command_add(cmds, "%s%s -p %smnt%s",
537 			    a->os_root, cmd_name(a, "MKDIR"),
538 			    a->os_root, dn);
539 		}
540 		aura_free(tmp_dest, "directory name");
541 
542 		/*
543 		 * Cpdup the chosen file or directory onto the HDD.
544 		 */
545 		cmd = command_add(cmds, "%s%s %s%s %smnt%s",
546 		    a->os_root, cmd_name(a, "CPDUP"),
547 		    a->os_root, src,
548 		    a->os_root, dest);
549 
550 		cmd = command_add(cmds,
551 		    "%s%s %s%s%s %smnt%s",
552 		    a->os_root, cmd_name(a, "CPDUP"),
553 		    a->os_root, PRISTINE_DIR, src,
554 		    a->os_root, dest);
555 		command_set_log_mode(cmd, COMMAND_LOG_QUIET);
556 	}
557 
558 	/*
559 	 * Rebuild the user database, to get rid of any extra users
560 	 * from the LiveCD that aren't supposed to be installed
561 	 * (copying a pristine master.passwd isn't enough.)
562 	 */
563 	command_add(cmds, "%s%s -p -d %smnt/etc %smnt/etc/master.passwd",
564 	    a->os_root, cmd_name(a, "PWD_MKDB"), a->os_root, a->os_root);
565 
566 	/*
567 	 * Create missing directories for special mounts.
568 	 */
569 	command_add(cmds, "%s%s %smnt/proc",
570 	    a->os_root, cmd_name(a, "MKDIR"), a->os_root);
571 	command_add(cmds, "%s%s %smnt/dev",
572 	    a->os_root, cmd_name(a, "MKDIR"), a->os_root);
573 	command_add(cmds, "%s%s %smnt/mnt",
574 	    a->os_root, cmd_name(a, "MKDIR"), a->os_root);
575 
576 	/* Write new fstab. */
577 	command_add(cmds, "%s%s '%s' >%smnt/etc/fstab",
578 	    a->os_root, cmd_name(a, "ECHO"),
579 	    "# Device\t\tMountpoint\tFStype\tOptions\t\tDump\tPass#",
580 	    a->os_root);
581 
582 	for (sp = slice_subpartition_first(storage_get_selected_slice(a->s));
583 	     sp != NULL; sp = subpartition_next(sp)) {
584 		if (strcmp(subpartition_get_mountpoint(sp), "swap") == 0) {
585 			command_add(cmds, "%s%s '/dev/%s\t\tnone\t\tswap\tsw\t\t0\t0' >>%smnt/etc/fstab",
586 			    a->os_root, cmd_name(a, "ECHO"),
587 			    subpartition_is_encrypted(sp) ?
588 			    "mapper/swap" : subpartition_get_device_name(sp),
589 			    a->os_root);
590 			if (subpartition_is_encrypted(sp)) {
591 				command_add(cmds,
592 				    "%s%s 'swap\t/dev/%s\tnone\tnone' >>%smnt/etc/crypttab",
593 				    a->os_root, cmd_name(a, "ECHO"),
594 				    subpartition_get_device_name(sp),
595 				    a->os_root);
596 			}
597 		} else {
598 			const char *fsname;
599 			int order;
600 
601 			/*
602 			 * fs type (/boot is always ufs)
603 			 */
604 			if (strcmp(subpartition_get_mountpoint(sp), "/boot") == 0)
605 				fsname = "ufs";
606 			else if (use_hammer == 2)
607 				fsname = "hammer2";
608 			else if (use_hammer)
609 				fsname = "hammer";
610 			else
611 				fsname = "ufs";
612 
613 			if (strcmp(subpartition_get_mountpoint(sp), "/") == 0)
614 				order = 1;
615 			else
616 				order = 2;
617 
618 			/*
619 			 * Adjust loader.conf for root partition
620 			 */
621 			if (strcmp(subpartition_get_mountpoint(sp), "/") == 0) {
622 				if (subpartition_is_encrypted(sp)) {
623 					command_add(cmds,
624 					    "%s%s 'vfs.root.mountfrom=\"ufs:md0s0\"' >>%smnt/boot/loader.conf",
625 					    a->os_root, cmd_name(a, "ECHO"),
626 					    a->os_root);
627 					command_add(cmds,
628 					    "%s%s 'vfs.root.realroot=\"crypt:%s:%s:%s\"' >>%smnt/boot/loader.conf",
629 					    a->os_root, cmd_name(a, "ECHO"),
630 					    fsname,
631 					    subpartition_get_device_name(sp),
632 					    subpartition_get_mapper_name(sp, -1),
633 					    a->os_root);
634 				} else {
635 					command_add(cmds,
636 					    "%s%s 'vfs.root.mountfrom=\"%s:%s\"' >>%smnt/boot/loader.conf",
637 					    a->os_root, cmd_name(a, "ECHO"),
638 					    fsname,
639 					    subpartition_get_device_name(sp),
640 					    a->os_root);
641 				}
642 			}
643 			if (subpartition_is_tmpfsbacked(sp)) {
644 				command_add(cmds, "%s%s 'tmpfs\t\t\t%s\t\ttmpfs\trw,-s%luM\t1\t1' >>%smnt/etc/fstab",
645 				    a->os_root, cmd_name(a, "ECHO"),
646 				    subpartition_get_mountpoint(sp),
647 				    subpartition_get_capacity(sp),
648 				    a->os_root);
649 			} else if (subpartition_is_encrypted(sp)) {
650 				if (strcmp(subpartition_get_mapper_name(sp, -1), "root") != 0) {
651 					command_add(cmds, "%s%s '%s\t/dev/%s\tnone\tnone' >>%smnt/etc/crypttab",
652 					    a->os_root, cmd_name(a, "ECHO"),
653 					    subpartition_get_mapper_name(sp, -1),
654 					    subpartition_get_device_name(sp),
655 					    a->os_root);
656 				}
657 				command_add(cmds, "%s%s '/dev/%s\t\t%s\t\t%s\trw\t\t2\t2' >>%smnt/etc/fstab",
658 				    a->os_root, cmd_name(a, "ECHO"),
659 				    subpartition_get_mapper_name(sp, 0),
660 				    subpartition_get_mountpoint(sp),
661 				    fsname,
662 				    a->os_root);
663 			} else {
664 				command_add(cmds, "%s%s '/dev/%s\t\t%s\t\t%s\trw\t\t%d\t%d' >>%smnt/etc/fstab",
665 				    a->os_root, cmd_name(a, "ECHO"),
666 				    subpartition_get_device_name(sp),
667 				    subpartition_get_mountpoint(sp),
668 				    fsname,
669 				    order, order,
670 				    a->os_root);
671 			}
672 		}
673 	}
674 
675 	/*
676 	 * Take care of NULL mounts from /build for things like /var/crash
677 	 * and /usr/obj if not specified as a discrete partition.
678 	 */
679 	for (j = 0; nullfs_mountpt[j] != NULL; j++) {
680 		if (subpartition_find(storage_get_selected_slice(a->s),
681 				      "%s", nullfs_mountpt[j]) != NULL) {
682 			continue;
683 		}
684 		command_add(cmds,
685 		    "%s%s '%s\t%s\t\tnull\trw\t\t0\t0' >>%smnt/etc/fstab",
686 		    a->os_root, cmd_name(a, "ECHO"),
687 		    nullfs_mountname[j],
688 		    nullfs_mountpt[j],
689 		    a->os_root);
690 	}
691 
692 	/*
693 	 * Take care of /tmp as a tmpfs filesystem
694 	 */
695 	if (subpartition_find(storage_get_selected_slice(a->s), "/tmp") == NULL) {
696 		command_add(cmds,
697 		    "%s%s 'tmpfs\t/tmp\t\ttmpfs\trw\t\t0\t0' >>%smnt/etc/fstab",
698 		    a->os_root, cmd_name(a, "ECHO"), a->os_root);
699 	}
700 
701 	/*
702 	 * Take care of /proc
703 	 */
704 	command_add(cmds, "%s%s '%s' >>%smnt/etc/fstab",
705 	    a->os_root, cmd_name(a, "ECHO"),
706 	    "proc\t\t\t/proc\t\tprocfs\trw\t\t0\t0",
707 	    a->os_root);
708 
709 	/* Backup the disklabel and the log. */
710 	command_add(cmds, "%s%s %s > %smnt/etc/disklabel.%s",
711 	    a->os_root, cmd_name(a, "DISKLABEL64"),
712 	    slice_get_device_name(storage_get_selected_slice(a->s)),
713 	    a->os_root,
714 	    slice_get_device_name(storage_get_selected_slice(a->s)));
715 
716 #if 0
717 	/* 'chflags nohistory' as needed */
718 	for (j = 0; pfs_mountpt[j] != NULL; j++)
719 		if (pfs_nohistory[j] == 1)
720 			command_add(cmds, "%s%s -R nohistory %smnt%s",
721 			    a->os_root, cmd_name(a, "CHFLAGS"),
722 			    a->os_root, pfs_mountpt[j]);
723 #endif
724 
725 	/* Do some preparation if encrypted partitions were configured */
726 	if (needcrypt) {
727 		command_add(cmds,
728 		    "%s%s 'dm_load=\"yes\"' >>%smnt/boot/loader.conf",
729 		    a->os_root, cmd_name(a, "ECHO"),
730 		    a->os_root);
731 		command_add(cmds,
732 		    "%s%s 'dm_target_crypt_load=\"yes\"' >>%smnt/boot/loader.conf",
733 		    a->os_root, cmd_name(a, "ECHO"),
734 		    a->os_root);
735 		command_add(cmds,
736 		    "%s%s 'initrd.img_load=\"YES\"' >>%smnt/boot/loader.conf",
737 		    a->os_root, cmd_name(a, "ECHO"),
738 		    a->os_root);
739 		command_add(cmds,
740 		    "%s%s 'initrd.img_type=\"md_image\"' >>%smnt/boot/loader.conf",
741 		    a->os_root, cmd_name(a, "ECHO"),
742 		    a->os_root);
743 	}
744 
745 	/* Customize stuff here */
746 	if(is_file("%susr/local/bin/after_installation_routines.sh", a->os_root)) {
747 		command_add(cmds, "%susr/local/bin/after_installation_routines.sh",
748 		    a->os_root);
749 	}
750 
751 	/* Save the installation log. */
752 	command_add(cmds, "%s%s %sinstall.log %smnt/var/log/install.log",
753 	    a->os_root, cmd_name(a, "CP"),
754 	    a->tmp, a->os_root);
755 	command_add(cmds, "%s%s 600 %smnt/var/log/install.log",
756 	    a->os_root, cmd_name(a, "CHMOD"), a->os_root);
757 
758 	/*
759 	 * Do it!
760 	 */
761 	/* commands_preview(a->c, cmds); */
762 	if (!commands_execute(a, cmds)) {
763 		inform(a->c, _("%s was not fully installed."), OPERATING_SYSTEM_NAME);
764 		a->result = 0;
765 	} else {
766 		a->result = 1;
767 	}
768 	commands_free(cmds);
769 	cmds = commands_new();
770 
771 	if (a->result) {
772 		config_vars_write(rc_conf, CONFIG_TYPE_SH, "%smnt/etc/rc.conf",
773 		    a->os_root);
774 		config_vars_free(rc_conf);
775 		rc_conf = config_vars_new();
776 	}
777 
778 	/*
779 	 * Unmount everything we mounted on /mnt.  This is done in a seperate
780 	 * command chain, so that partitions are unmounted, even if an error
781 	 * occurs in one of the preceding commands, or it is cancelled.
782 	 */
783 	unmount_altfs(a, cmds);
784 	unmount_all_under(a, cmds, "%smnt", a->os_root);
785 
786 	/*
787 	 * Once everything is unmounted, if the install went successfully,
788 	 * make sure once and for all that the disklabel is bootable.
789 	 */
790 	if (a->result)
791 		command_add(cmds, "%s%s -B %s",
792 		    a->os_root, cmd_name(a, "DISKLABEL64"),
793 		    slice_get_device_name(storage_get_selected_slice(a->s)));
794 
795 	if (!commands_execute(a, cmds))
796 		inform(a->c, _("Warning: subpartitions were not correctly unmounted."));
797 
798 	commands_free(cmds);
799 
800 	/*
801 	 * Finally, remove all swap and any mappings.
802 	 */
803 	if (swapoff_all(a) == NULL)
804 		inform(a->c, _("Warning: swap could not be turned off."));
805 	if (remove_all_mappings(a) == NULL)
806 		inform(a->c, _("Warning: mappings could not be removed."));
807 }
808