2 * Copyright (c) 1987, 1988 Regents of the University of California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgment:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * 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 THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #if ENABLE_FEATURE_OSF_LABEL
37 #define BSD_DISKMAGIC ((uint32_t) 0x82564557)
40 #ifndef BSD_MAXPARTITIONS
41 #define BSD_MAXPARTITIONS 16
44 #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec"
46 #if defined(i386) || defined(__sparc__) || defined(__arm__) \
47 || defined(__m68k__) || defined(__mips__) || defined(__s390__) \
48 || defined(__s390__) || defined(__s390x__) \
49 || defined(__sh__) || defined(__x86_64__) || defined(__avr32__)
50 # define BSD_LABELSECTOR 1
51 # define BSD_LABELOFFSET 0
52 #elif defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \
54 # define BSD_LABELSECTOR 0
55 # define BSD_LABELOFFSET 64
57 # error unknown architecture
60 #define BSD_BBSIZE 8192 /* size of boot area, with label */
61 #define BSD_SBSIZE 8192 /* max size of fs superblock */
63 struct xbsd_disklabel {
64 uint32_t d_magic; /* the magic number */
65 int16_t d_type; /* drive type */
66 int16_t d_subtype; /* controller/d_type specific */
67 char d_typename[16]; /* type name, e.g. "eagle" */
68 char d_packname[16]; /* pack identifier */
70 uint32_t d_secsize; /* # of bytes per sector */
71 uint32_t d_nsectors; /* # of data sectors per track */
72 uint32_t d_ntracks; /* # of tracks per cylinder */
73 uint32_t d_ncylinders; /* # of data cylinders per unit */
74 uint32_t d_secpercyl; /* # of data sectors per cylinder */
75 uint32_t d_secperunit; /* # of data sectors per unit */
77 * Spares (bad sector replacements) below
78 * are not counted in d_nsectors or d_secpercyl.
79 * Spare sectors are assumed to be physical sectors
80 * which occupy space at the end of each track and/or cylinder.
82 uint16_t d_sparespertrack; /* # of spare sectors per track */
83 uint16_t d_sparespercyl; /* # of spare sectors per cylinder */
85 * Alternate cylinders include maintenance, replacement,
86 * configuration description areas, etc.
88 uint32_t d_acylinders; /* # of alt. cylinders per unit */
90 /* hardware characteristics: */
92 * d_interleave, d_trackskew and d_cylskew describe perturbations
93 * in the media format used to compensate for a slow controller.
94 * Interleave is physical sector interleave, set up by the formatter
95 * or controller when formatting. When interleaving is in use,
96 * logically adjacent sectors are not physically contiguous,
97 * but instead are separated by some number of sectors.
98 * It is specified as the ratio of physical sectors traversed
99 * per logical sector. Thus an interleave of 1:1 implies contiguous
100 * layout, while 2:1 implies that logical sector 0 is separated
101 * by one sector from logical sector 1.
102 * d_trackskew is the offset of sector 0 on track N
103 * relative to sector 0 on track N-1 on the same cylinder.
104 * Finally, d_cylskew is the offset of sector 0 on cylinder N
105 * relative to sector 0 on cylinder N-1.
107 uint16_t d_rpm; /* rotational speed */
108 uint16_t d_interleave; /* hardware sector interleave */
109 uint16_t d_trackskew; /* sector 0 skew, per track */
110 uint16_t d_cylskew; /* sector 0 skew, per cylinder */
111 uint32_t d_headswitch; /* head switch time, usec */
112 uint32_t d_trkseek; /* track-to-track seek, usec */
113 uint32_t d_flags; /* generic flags */
115 uint32_t d_drivedata[NDDATA]; /* drive-type specific information */
117 uint32_t d_spare[NSPARE]; /* reserved for future use */
118 uint32_t d_magic2; /* the magic number (again) */
119 uint16_t d_checksum; /* xor of data incl. partitions */
120 /* filesystem and partition information: */
121 uint16_t d_npartitions; /* number of partitions in following */
122 uint32_t d_bbsize; /* size of boot area at sn0, bytes */
123 uint32_t d_sbsize; /* max size of fs superblock, bytes */
124 struct xbsd_partition { /* the partition table */
125 uint32_t p_size; /* number of sectors in partition */
126 uint32_t p_offset; /* starting sector */
127 uint32_t p_fsize; /* filesystem basic fragment size */
128 uint8_t p_fstype; /* filesystem type, see below */
129 uint8_t p_frag; /* filesystem fragments per block */
130 uint16_t p_cpg; /* filesystem cylinders per group */
131 } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */
135 #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */
136 #define BSD_DTYPE_MSCP 2 /* MSCP */
137 #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */
138 #define BSD_DTYPE_SCSI 4 /* SCSI */
139 #define BSD_DTYPE_ESDI 5 /* ESDI interface */
140 #define BSD_DTYPE_ST506 6 /* ST506 etc. */
141 #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */
142 #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */
143 #define BSD_DTYPE_FLOPPY 10 /* floppy */
145 /* d_subtype values: */
146 #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */
147 #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */
148 #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */
150 static const char *const xbsd_dktypenames[] = {
167 * Filesystem type and version.
168 * Used to interpret other filesystem-specific
169 * per-partition information.
171 #define BSD_FS_UNUSED 0 /* unused */
172 #define BSD_FS_SWAP 1 /* swap */
173 #define BSD_FS_V6 2 /* Sixth Edition */
174 #define BSD_FS_V7 3 /* Seventh Edition */
175 #define BSD_FS_SYSV 4 /* System V */
176 #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */
177 #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */
178 #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */
179 #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */
180 #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */
181 #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */
182 #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */
183 #define BSD_FS_ISOFS BSD_FS_ISO9660
184 #define BSD_FS_BOOT 13 /* partition contains bootstrap */
185 #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */
186 #define BSD_FS_HFS 15 /* Macintosh HFS */
187 #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */
189 /* this is annoying, but it's also the way it is :-( */
191 #define BSD_FS_EXT2 8 /* ext2 file system */
193 #define BSD_FS_MSDOS 8 /* MS-DOS file system */
196 static const char *const xbsd_fstypes[] = {
197 "\x00" "unused", /* BSD_FS_UNUSED */
198 "\x01" "swap", /* BSD_FS_SWAP */
199 "\x02" "Version 6", /* BSD_FS_V6 */
200 "\x03" "Version 7", /* BSD_FS_V7 */
201 "\x04" "System V", /* BSD_FS_SYSV */
202 "\x05" "4.1BSD", /* BSD_FS_V71K */
203 "\x06" "Eighth Edition", /* BSD_FS_V8 */
204 "\x07" "4.2BSD", /* BSD_FS_BSDFFS */
206 "\x08" "ext2", /* BSD_FS_EXT2 */
208 "\x08" "MS-DOS", /* BSD_FS_MSDOS */
210 "\x09" "4.4LFS", /* BSD_FS_BSDLFS */
211 "\x0a" "unknown", /* BSD_FS_OTHER */
212 "\x0b" "HPFS", /* BSD_FS_HPFS */
213 "\x0c" "ISO-9660", /* BSD_FS_ISO9660 */
214 "\x0d" "boot", /* BSD_FS_BOOT */
215 "\x0e" "ADOS", /* BSD_FS_ADOS */
216 "\x0f" "HFS", /* BSD_FS_HFS */
217 "\x10" "AdvFS", /* BSD_FS_ADVFS */
223 * flags shared by various drives:
225 #define BSD_D_REMOVABLE 0x01 /* removable media */
226 #define BSD_D_ECC 0x02 /* supports ECC */
227 #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */
228 #define BSD_D_RAMDISK 0x08 /* disk emulator */
229 #define BSD_D_CHAIN 0x10 /* can do back-back transfers */
230 #define BSD_D_DOSPART 0x20 /* within MSDOS partition */
234 19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls
236 20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better
237 support for OSF/1 disklabels on Alpha.
238 Also fixed unaligned accesses in alpha_bootblock_checksum()
241 #define FREEBSD_PARTITION 0xa5
242 #define NETBSD_PARTITION 0xa9
244 static void xbsd_delete_part(void);
245 static void xbsd_new_part(void);
246 static void xbsd_write_disklabel(void);
247 static int xbsd_create_disklabel(void);
248 static void xbsd_edit_disklabel(void);
249 static void xbsd_write_bootstrap(void);
250 static void xbsd_change_fstype(void);
251 static int xbsd_get_part_index(int max);
252 static int xbsd_check_new_partition(int *i);
253 static void xbsd_list_types(void);
254 static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp);
255 static int xbsd_initlabel(struct partition *p);
256 static int xbsd_readlabel(struct partition *p);
257 static int xbsd_writelabel(struct partition *p);
259 #if defined(__alpha__)
260 static void alpha_bootblock_checksum(char *boot);
263 #if !defined(__alpha__)
264 static int xbsd_translate_fstype(int linux_type);
265 static void xbsd_link_part(void);
266 static struct partition *xbsd_part;
267 static int xbsd_part_index;
271 /* Group big globals data and allocate it in one go */
273 /* We access this through a uint64_t * when checksumming */
274 /* hopefully xmalloc gives us required alignment */
275 char disklabelbuffer[BSD_BBSIZE];
276 struct xbsd_disklabel xbsd_dlabel;
279 static struct bsd_globals *bsd_globals_ptr;
281 #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer)
282 #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel)
287 #define bsd_cround(n) \
288 (display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n))
291 * Test whether the whole disk has BSD disk label magic.
293 * Note: often reformatting with DOS-type label leaves the BSD magic,
294 * so this does not mean that there is a BSD disk label.
297 check_osf_label(void)
299 if (xbsd_readlabel(NULL) == 0)
305 bsd_trydev(const char * dev)
307 if (xbsd_readlabel(NULL) == 0)
309 printf("\nBSD label for device: %s\n", dev);
310 xbsd_print_disklabel(0);
317 puts("Command Action");
318 puts("d\tdelete a BSD partition");
319 puts("e\tedit drive data");
320 puts("i\tinstall bootstrap");
321 puts("l\tlist known filesystem types");
322 puts("n\tadd a new BSD partition");
323 puts("p\tprint BSD partition table");
324 puts("q\tquit without saving changes");
325 puts("r\treturn to main menu");
326 puts("s\tshow complete disklabel");
327 puts("t\tchange a partition's filesystem id");
328 puts("u\tchange units (cylinders/sectors)");
329 puts("w\twrite disklabel to disk");
330 #if !defined(__alpha__)
331 puts("x\tlink BSD partition to non-BSD partition");
335 #if !defined(__alpha__)
343 is_bsd_partition_type(int type)
345 return (type == FREEBSD_PARTITION ||
346 type == hidden(FREEBSD_PARTITION) ||
347 type == NETBSD_PARTITION ||
348 type == hidden(NETBSD_PARTITION));
355 #if !defined(__alpha__)
359 for (t = 0; t < 4; t++) {
360 p = get_part_table(t);
361 if (p && is_bsd_partition_type(p->sys_ind)) {
364 ss = get_start_sect(xbsd_part);
366 printf("Partition %s has invalid starting sector 0\n",
367 partname(disk_device, t+1, 0));
370 printf("Reading disklabel of %s at sector %u\n",
371 partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR);
372 if (xbsd_readlabel(xbsd_part) == 0)
373 if (xbsd_create_disklabel() == 0)
380 printf("There is no *BSD partition on %s\n", disk_device);
384 #elif defined(__alpha__)
386 if (xbsd_readlabel(NULL) == 0)
387 if (xbsd_create_disklabel() == 0)
394 switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) {
399 xbsd_edit_disklabel();
402 xbsd_write_bootstrap();
411 xbsd_print_disklabel(0);
414 if (ENABLE_FEATURE_CLEAN_UP)
420 xbsd_print_disklabel(1);
423 xbsd_change_fstype();
429 xbsd_write_disklabel();
431 #if !defined(__alpha__)
444 xbsd_delete_part(void)
448 i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
449 xbsd_dlabel.d_partitions[i].p_size = 0;
450 xbsd_dlabel.d_partitions[i].p_offset = 0;
451 xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
452 if (xbsd_dlabel.d_npartitions == i + 1)
453 while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0)
454 xbsd_dlabel.d_npartitions--;
464 if (!xbsd_check_new_partition(&i))
467 #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
468 begin = get_start_sect(xbsd_part);
469 end = begin + get_nr_sects(xbsd_part) - 1;
472 end = xbsd_dlabel.d_secperunit - 1;
475 snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR));
476 begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end),
479 if (display_in_cyl_units)
480 begin = (begin - 1) * xbsd_dlabel.d_secpercyl;
482 snprintf(mesg, sizeof(mesg), "Last %s or +size or +sizeM or +sizeK",
483 str_units(SINGULAR));
484 end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end),
485 bsd_cround(begin), mesg);
487 if (display_in_cyl_units)
488 end = end * xbsd_dlabel.d_secpercyl - 1;
490 xbsd_dlabel.d_partitions[i].p_size = end - begin + 1;
491 xbsd_dlabel.d_partitions[i].p_offset = begin;
492 xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED;
496 xbsd_print_disklabel(int show_all)
498 struct xbsd_disklabel *lp = &xbsd_dlabel;
499 struct xbsd_partition *pp;
503 static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT };
505 #if defined(__alpha__)
506 printf("# %s:\n", disk_device);
508 printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0));
510 if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1)
511 printf("type: %s\n", xbsd_dktypenames[lp->d_type]);
513 printf("type: %u\n", lp->d_type);
514 printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename);
515 printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname);
517 print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " ");
519 /* On various machines the fields of *lp are short/int/long */
520 /* In order to avoid problems, we cast them all to long. */
521 printf("bytes/sector: %lu\n", (long) lp->d_secsize);
522 printf("sectors/track: %lu\n", (long) lp->d_nsectors);
523 printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks);
524 printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl);
525 printf("cylinders: %lu\n", (long) lp->d_ncylinders);
526 printf("rpm: %u\n", lp->d_rpm);
527 printf("interleave: %u\n", lp->d_interleave);
528 printf("trackskew: %u\n", lp->d_trackskew);
529 printf("cylinderskew: %u\n", lp->d_cylskew);
530 printf("headswitch: %lu\t\t# milliseconds\n",
531 (long) lp->d_headswitch);
532 printf("track-to-track seek: %lu\t# milliseconds\n",
533 (long) lp->d_trkseek);
534 printf("drivedata: ");
535 for (i = NDDATA - 1; i >= 0; i--)
536 if (lp->d_drivedata[i])
540 for (j = 0; j <= i; j++)
541 printf("%lu ", (long) lp->d_drivedata[j]);
543 printf("\n%u partitions:\n", lp->d_npartitions);
544 printf("# start end size fstype [fsize bsize cpg]\n");
545 pp = lp->d_partitions;
546 for (i = 0; i < lp->d_npartitions; i++, pp++) {
548 if (display_in_cyl_units && lp->d_secpercyl) {
549 printf(" %c: %8lu%c %8lu%c %8lu%c ",
551 (unsigned long) pp->p_offset / lp->d_secpercyl + 1,
552 (pp->p_offset % lp->d_secpercyl) ? '*' : ' ',
553 (unsigned long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl,
554 ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ',
555 (long) pp->p_size / lp->d_secpercyl,
556 (pp->p_size % lp->d_secpercyl) ? '*' : ' '
559 printf(" %c: %8lu %8lu %8lu ",
562 (long) pp->p_offset + pp->p_size - 1,
567 if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1)
568 printf("%8.8s", xbsd_fstypes[pp->p_fstype]);
570 printf("%8x", pp->p_fstype);
572 switch (pp->p_fstype) {
574 printf(" %5lu %5lu %5.5s ",
575 (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, "");
578 printf(" %5lu %5lu %5u ",
579 (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg);
582 printf("%22.22s", "");
591 xbsd_write_disklabel(void)
593 #if defined(__alpha__)
594 printf("Writing disklabel to %s\n", disk_device);
595 xbsd_writelabel(NULL);
597 printf("Writing disklabel to %s\n",
598 partname(disk_device, xbsd_part_index + 1, 0));
599 xbsd_writelabel(xbsd_part);
601 reread_partition_table(0); /* no exit yet */
605 xbsd_create_disklabel(void)
609 #if defined(__alpha__)
610 printf("%s contains no disklabel\n", disk_device);
612 printf("%s contains no disklabel\n",
613 partname(disk_device, xbsd_part_index + 1, 0));
617 c = read_nonempty("Do you want to create a disklabel? (y/n) ");
618 if (c == 'y' || c == 'Y') {
620 #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \
621 defined(__s390__) || defined(__s390x__)
627 xbsd_print_disklabel(1);
638 edit_int(int def, const char *mesg)
640 mesg = xasprintf("%s (%u): ", mesg, def);
642 if (!read_line(mesg))
644 } while (!isdigit(*line_ptr));
645 def = atoi(line_ptr);
652 xbsd_edit_disklabel(void)
654 struct xbsd_disklabel *d;
658 #if defined(__alpha__) || defined(__ia64__)
659 d->d_secsize = edit_int(d->d_secsize , "bytes/sector");
660 d->d_nsectors = edit_int(d->d_nsectors , "sectors/track");
661 d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder");
662 d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders");
665 /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */
667 d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks,
669 if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks)
672 printf("Must be <= sectors/track * tracks/cylinder (default)\n");
674 d->d_rpm = edit_int(d->d_rpm , "rpm");
675 d->d_interleave = edit_int(d->d_interleave, "interleave");
676 d->d_trackskew = edit_int(d->d_trackskew , "trackskew");
677 d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew");
678 d->d_headswitch = edit_int(d->d_headswitch, "headswitch");
679 d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek");
681 d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
685 xbsd_get_bootstrap(char *path, void *ptr, int size)
689 fdb = open_or_warn(path, O_RDONLY);
693 if (full_read(fdb, ptr, size) < 0) {
694 bb_simple_perror_msg(path);
698 printf(" ... %s\n", path);
706 printf("Syncing disks\n");
708 /* sleep(4); What? */
712 xbsd_write_bootstrap(void)
714 char path[MAXPATHLEN];
715 const char *bootdir = BSD_LINUX_BOOTDIR;
716 const char *dkbasename;
717 struct xbsd_disklabel dl;
721 if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
726 snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ",
727 dkbasename, dkbasename, dkbasename);
728 if (read_line(path)) {
729 dkbasename = line_ptr;
731 snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename);
732 if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
735 /* We need a backup of the disklabel (xbsd_dlabel might have changed). */
736 d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
737 memmove(&dl, d, sizeof(struct xbsd_disklabel));
739 /* The disklabel will be overwritten by 0's from bootxx anyway */
740 memset(d, 0, sizeof(struct xbsd_disklabel));
742 snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename);
743 if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize],
744 (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
747 e = d + sizeof(struct xbsd_disklabel);
748 for (p = d; p < e; p++)
750 printf("Bootstrap overlaps with disk label!\n");
754 memmove(d, &dl, sizeof(struct xbsd_disklabel));
756 #if defined(__powerpc__) || defined(__hppa__)
758 #elif defined(__alpha__)
760 alpha_bootblock_checksum(disklabelbuffer);
762 sector = get_start_sect(xbsd_part);
766 xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
768 #if defined(__alpha__)
769 printf("Bootstrap installed on %s\n", disk_device);
771 printf("Bootstrap installed on %s\n",
772 partname(disk_device, xbsd_part_index+1, 0));
779 xbsd_change_fstype(void)
783 i = xbsd_get_part_index(xbsd_dlabel.d_npartitions);
784 xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes);
788 xbsd_get_part_index(int max)
790 char prompt[sizeof("Partition (a-%c): ") + 16];
793 snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1);
795 l = tolower(read_nonempty(prompt));
796 while (l < 'a' || l > 'a' + max - 1);
801 xbsd_check_new_partition(int *i)
803 /* room for more? various BSD flavours have different maxima */
804 if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) {
807 for (t = 0; t < BSD_MAXPARTITIONS; t++)
808 if (xbsd_dlabel.d_partitions[t].p_size == 0)
811 if (t == BSD_MAXPARTITIONS) {
812 printf("The maximum number of partitions has been created\n");
817 *i = xbsd_get_part_index(BSD_MAXPARTITIONS);
819 if (*i >= xbsd_dlabel.d_npartitions)
820 xbsd_dlabel.d_npartitions = (*i) + 1;
822 if (xbsd_dlabel.d_partitions[*i].p_size != 0) {
823 printf("This partition already exists\n");
831 xbsd_list_types(void)
833 list_types(xbsd_fstypes);
837 xbsd_dkcksum(struct xbsd_disklabel *lp)
839 uint16_t *start, *end;
842 start = (uint16_t *) lp;
843 end = (uint16_t *) &lp->d_partitions[lp->d_npartitions];
850 xbsd_initlabel(struct partition *p)
852 struct xbsd_disklabel *d = &xbsd_dlabel;
853 struct xbsd_partition *pp;
856 memset(d, 0, sizeof(struct xbsd_disklabel));
858 d->d_magic = BSD_DISKMAGIC;
860 if (strncmp(disk_device, "/dev/sd", 7) == 0)
861 d->d_type = BSD_DTYPE_SCSI;
863 d->d_type = BSD_DTYPE_ST506;
865 #if !defined(__alpha__)
866 d->d_flags = BSD_D_DOSPART;
870 d->d_secsize = SECTOR_SIZE; /* bytes/sector */
871 d->d_nsectors = g_sectors; /* sectors/track */
872 d->d_ntracks = g_heads; /* tracks/cylinder (heads) */
873 d->d_ncylinders = g_cylinders;
874 d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */
875 if (d->d_secpercyl == 0)
876 d->d_secpercyl = 1; /* avoid segfaults */
877 d->d_secperunit = d->d_secpercyl * d->d_ncylinders;
886 d->d_magic2 = BSD_DISKMAGIC;
887 d->d_bbsize = BSD_BBSIZE;
888 d->d_sbsize = BSD_SBSIZE;
890 #if !defined(__alpha__)
891 d->d_npartitions = 4;
892 pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */
894 pp->p_offset = get_start_sect(p);
895 pp->p_size = get_nr_sects(p);
896 pp->p_fstype = BSD_FS_UNUSED;
897 pp = &d->d_partitions[3]; /* Partition D should be whole disk */
900 pp->p_size = d->d_secperunit;
901 pp->p_fstype = BSD_FS_UNUSED;
903 d->d_npartitions = 3;
904 pp = &d->d_partitions[2]; /* Partition C should be
907 pp->p_size = d->d_secperunit;
908 pp->p_fstype = BSD_FS_UNUSED;
915 * Read a xbsd_disklabel from sector 0 or from the starting sector of p.
916 * If it has the right magic, return 1.
919 xbsd_readlabel(struct partition *p)
921 struct xbsd_disklabel *d;
924 if (!bsd_globals_ptr)
925 bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr));
929 /* p is used only to get the starting sector */
930 #if !defined(__alpha__)
931 sector = (p ? get_start_sect(p) : 0);
937 if (BSD_BBSIZE != full_read(dev_fd, disklabelbuffer, BSD_BBSIZE))
938 fdisk_fatal(unable_to_read);
940 memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
941 sizeof(struct xbsd_disklabel));
943 if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC)
946 for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) {
947 d->d_partitions[t].p_size = 0;
948 d->d_partitions[t].p_offset = 0;
949 d->d_partitions[t].p_fstype = BSD_FS_UNUSED;
952 if (d->d_npartitions > BSD_MAXPARTITIONS)
953 printf("Warning: too many partitions (%u, maximum is %u)\n",
954 d->d_npartitions, BSD_MAXPARTITIONS);
959 xbsd_writelabel(struct partition *p)
961 struct xbsd_disklabel *d = &xbsd_dlabel;
964 #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
965 sector = get_start_sect(p) + BSD_LABELSECTOR;
967 sector = BSD_LABELSECTOR;
971 d->d_checksum = xbsd_dkcksum(d);
973 /* This is necessary if we want to write the bootstrap later,
974 otherwise we'd write the old disklabel with the bootstrap.
976 memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
977 d, sizeof(struct xbsd_disklabel));
979 #if defined(__alpha__) && BSD_LABELSECTOR == 0
980 alpha_bootblock_checksum(disklabelbuffer);
982 xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
985 lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR);
986 xwrite(dev_fd, d, sizeof(*d));
993 #if !defined(__alpha__)
995 xbsd_translate_fstype(int linux_type)
997 switch (linux_type) {
998 case 0x01: /* DOS 12-bit FAT */
999 case 0x04: /* DOS 16-bit <32M */
1000 case 0x06: /* DOS 16-bit >=32M */
1001 case 0xe1: /* DOS access */
1002 case 0xe3: /* DOS R/O */
1003 case 0xf2: /* DOS secondary */
1004 return BSD_FS_MSDOS;
1005 case 0x07: /* OS/2 HPFS */
1008 return BSD_FS_OTHER;
1013 xbsd_link_part(void)
1016 struct partition *p;
1018 k = get_partition(1, g_partitions);
1020 if (!xbsd_check_new_partition(&i))
1023 p = get_part_table(k);
1025 xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p);
1026 xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p);
1027 xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind);
1031 #if defined(__alpha__)
1033 alpha_bootblock_checksum(char *boot)
1038 dp = (uint64_t *)boot;
1040 for (i = 0; i < 63; i++)
1044 #endif /* __alpha__ */
1046 /* Undefine 'global' tricks */
1047 #undef disklabelbuffer
1050 #endif /* OSF_LABEL */