2 * Copyright (c) 2002 Marcel Moolenaar
5 * 'init' directive added by Matthew Dillon.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sbin/gpt/create.c,v 1.11 2005/08/31 01:47:19 marcel Exp $
29 * $DragonFly: src/sbin/gpt/create.c,v 1.1 2007/06/16 22:29:27 dillon Exp $
32 #include <sys/types.h>
34 #include <sys/errno.h>
35 #include <sys/param.h>
36 #include <bus/cam/scsi/scsi_daio.h>
50 static int primary_only
;
52 static void do_erase(int fd
);
57 fprintf(stderr
, "usage: %s [-fp] device ...\n", getprogname());
64 fprintf(stderr
, "usage: %s -f [-B] [-E] device ...\n", getprogname());
65 fprintf(stderr
, "\tnote: -f is mandatory for this command\n");
82 last
= mediasz
/ secsz
- 1LL;
84 if (map_find(MAP_TYPE_PRI_GPT_HDR
) != NULL
||
85 map_find(MAP_TYPE_SEC_GPT_HDR
) != NULL
) {
86 warnx("%s: error: device already contains a GPT", device_name
);
89 map
= map_find(MAP_TYPE_MBR
);
92 warnx("%s: error: device contains a MBR", device_name
);
96 /* Nuke the MBR in our internal map. */
97 map
->map_type
= MAP_TYPE_UNUSED
;
103 if (map_find(MAP_TYPE_PMBR
) == NULL
) {
104 if (map_free(0LL, 1LL) == 0) {
105 warnx("%s: error: no room for the PMBR", device_name
);
108 mbr
= gpt_read(fd
, 0LL, 1);
109 bzero(mbr
, sizeof(*mbr
));
110 mbr
->mbr_sig
= htole16(MBR_SIG
);
111 mbr
->mbr_part
[0].part_shd
= 0xff;
112 mbr
->mbr_part
[0].part_ssect
= 0xff;
113 mbr
->mbr_part
[0].part_scyl
= 0xff;
114 mbr
->mbr_part
[0].part_typ
= 0xee;
115 mbr
->mbr_part
[0].part_ehd
= 0xff;
116 mbr
->mbr_part
[0].part_esect
= 0xff;
117 mbr
->mbr_part
[0].part_ecyl
= 0xff;
118 mbr
->mbr_part
[0].part_start_lo
= htole16(1);
119 if (last
> 0xffffffff) {
120 mbr
->mbr_part
[0].part_size_lo
= htole16(0xffff);
121 mbr
->mbr_part
[0].part_size_hi
= htole16(0xffff);
123 mbr
->mbr_part
[0].part_size_lo
= htole16(last
);
124 mbr
->mbr_part
[0].part_size_hi
= htole16(last
>> 16);
126 map
= map_add(0LL, 1LL, MAP_TYPE_PMBR
, mbr
);
130 /* Get the amount of free space after the MBR */
131 blocks
= map_free(1LL, 0LL);
133 warnx("%s: error: no room for the GPT header", device_name
);
137 /* Don't create more than parts entries. */
138 if ((uint64_t)(blocks
- 1) * secsz
> parts
* sizeof(struct gpt_ent
)) {
139 blocks
= (parts
* sizeof(struct gpt_ent
)) / secsz
;
140 if ((parts
* sizeof(struct gpt_ent
)) % secsz
)
142 blocks
++; /* Don't forget the header itself */
145 /* Never cross the median of the device. */
146 if ((blocks
+ 1LL) > ((last
+ 1LL) >> 1))
147 blocks
= ((last
+ 1LL) >> 1) - 1LL;
150 * Get the amount of free space at the end of the device and
151 * calculate the size for the GPT structures.
154 if (map
->map_type
!= MAP_TYPE_UNUSED
) {
155 warnx("%s: error: no room for the backup header", device_name
);
159 if (map
->map_size
< blocks
)
160 blocks
= map
->map_size
;
162 warnx("%s: error: no room for the GPT table", device_name
);
166 blocks
--; /* Number of blocks in the GPT table. */
167 gpt
= map_add(1LL, 1LL, MAP_TYPE_PRI_GPT_HDR
, calloc(1, secsz
));
168 tbl
= map_add(2LL, blocks
, MAP_TYPE_PRI_GPT_TBL
,
169 calloc(blocks
, secsz
));
170 if (gpt
== NULL
|| tbl
== NULL
)
174 memcpy(hdr
->hdr_sig
, GPT_HDR_SIG
, sizeof(hdr
->hdr_sig
));
175 hdr
->hdr_revision
= htole32(GPT_HDR_REVISION
);
177 * XXX struct gpt_hdr is not a multiple of 8 bytes in size and thus
178 * contains padding we must not include in the size.
180 hdr
->hdr_size
= htole32(offsetof(struct gpt_hdr
, padding
));
181 hdr
->hdr_lba_self
= htole64(gpt
->map_start
);
182 hdr
->hdr_lba_alt
= htole64(last
);
183 hdr
->hdr_lba_start
= htole64(tbl
->map_start
+ blocks
);
184 hdr
->hdr_lba_end
= htole64(last
- blocks
- 1LL);
185 uuid_create(&uuid
, NULL
);
186 le_uuid_enc(&hdr
->hdr_uuid
, &uuid
);
187 hdr
->hdr_lba_table
= htole64(tbl
->map_start
);
188 hdr
->hdr_entries
= htole32((blocks
* secsz
) / sizeof(struct gpt_ent
));
189 if (le32toh(hdr
->hdr_entries
) > parts
)
190 hdr
->hdr_entries
= htole32(parts
);
191 hdr
->hdr_entsz
= htole32(sizeof(struct gpt_ent
));
194 for (i
= 0; i
< le32toh(hdr
->hdr_entries
); i
++) {
195 uuid_create(&uuid
, NULL
);
196 le_uuid_enc(&ent
[i
].ent_uuid
, &uuid
);
199 hdr
->hdr_crc_table
= htole32(crc32(ent
, le32toh(hdr
->hdr_entries
) *
200 le32toh(hdr
->hdr_entsz
)));
201 hdr
->hdr_crc_self
= htole32(crc32(hdr
, le32toh(hdr
->hdr_size
)));
207 * Create backup GPT if the user didn't suppress it.
210 tpg
= map_add(last
, 1LL, MAP_TYPE_SEC_GPT_HDR
,
212 lbt
= map_add(last
- blocks
, blocks
, MAP_TYPE_SEC_GPT_TBL
,
214 memcpy(tpg
->map_data
, gpt
->map_data
, secsz
);
216 hdr
->hdr_lba_self
= htole64(tpg
->map_start
);
217 hdr
->hdr_lba_alt
= htole64(gpt
->map_start
);
218 hdr
->hdr_lba_table
= htole64(lbt
->map_start
);
219 hdr
->hdr_crc_self
= 0; /* Don't ever forget this! */
220 hdr
->hdr_crc_self
= htole32(crc32(hdr
, le32toh(hdr
->hdr_size
)));
228 dosys(const char *ctl
, ...)
234 vasprintf(&scmd
, ctl
, va
);
236 printf("%s\n", scmd
);
237 if (system(scmd
) != 0) {
238 fprintf(stderr
, "Execution failed\n");
246 cmd_create(int argc
, char *argv
[])
250 while ((ch
= getopt(argc
, argv
, "fp")) != -1) {
266 while (optind
< argc
) {
267 fd
= gpt_open(argv
[optind
++]);
269 warn("unable to open device '%s'", device_name
);
284 * Create a fresh gpt partition table and populate it with reasonable
288 cmd_init(int argc
, char *argv
[])
294 while ((ch
= getopt(argc
, argv
, "fBEI")) != -1) {
300 fprintf(stderr
, "Maybe you were trying to supply "
301 "fdisk options. This is the gpt "
319 if (argc
== optind
) {
324 while (optind
< argc
) {
325 const char *path
= argv
[optind
++];
330 * Destroy and [re]Create the gpt
334 warn("unable to open device '%s'", path
);
343 warn("unable to reopen device '%s'", path
);
353 warn("unable to open device '%s'", device_name
);
364 if (strstr(device_name
, "serno"))
365 asprintf(&slice0
, "%s.s0", device_name
);
367 asprintf(&slice0
, "%ss0", device_name
);
369 if (strstr(device_name
, "serno"))
370 asprintf(&slice1
, "%s.s1", device_name
);
372 asprintf(&slice1
, "%ss1", device_name
);
377 dosys("disklabel -r -w %s %s auto",
378 (with_boot
? "-B" : ""),
385 dosys("newfs_msdos %s", slice0
);
388 * If asked to setup an EFI boot, mount the dos partition
391 * We do not setup the dragonfly disklabel with -B
397 asprintf(&mtpt
, "/tmp/gpt%08x%08x",
398 (int)random(), (int)random());
399 if (mkdir(mtpt
, 0700) < 0) {
400 fprintf(stderr
, "cannot mkdir %s\n", mtpt
);
404 dosys("mount_msdos %s %s", slice0
, mtpt
);
405 dosys("mkdir -p %s/efi/boot", mtpt
);
406 dosys("cpdup /boot/boot1.efi %s/efi/boot/bootx64.efi",
408 dosys("umount %s", mtpt
);
426 if (ioctl(fd
, DAIOCTRIM
, ioarg
) < 0) {
427 printf("Trim error %s\n", strerror(errno
));
428 printf("Continuing\n");
430 printf("Trim completed ok\n");