bsdlabel.c revision 41901
1/* 2 * Copyright (c) 1987, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Symmetric Computer Systems. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37#ifndef lint 38static const char copyright[] = 39"@(#) Copyright (c) 1987, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41#endif /* not lint */ 42 43#ifndef lint 44#if 0 45static char sccsid[] = "@(#)disklabel.c 8.2 (Berkeley) 1/7/94"; 46/* from static char sccsid[] = "@(#)disklabel.c 1.2 (Symmetric) 11/28/85"; */ 47#endif 48static const char rcsid[] = 49 "$Id: disklabel.c,v 1.23 1998/10/23 18:57:39 bde Exp $"; 50#endif /* not lint */ 51 52#include <sys/param.h> 53#include <sys/errno.h> 54#include <sys/file.h> 55#include <sys/stat.h> 56#include <sys/wait.h> 57#define DKTYPENAMES 58#include <sys/disklabel.h> 59#include <ufs/ffs/fs.h> 60#include <unistd.h> 61#include <string.h> 62#include <stdio.h> 63#include <stdlib.h> 64#include <signal.h> 65#include <stdarg.h> 66#include <ctype.h> 67#include <err.h> 68#include "pathnames.h" 69 70/* 71 * Disklabel: read and write disklabels. 72 * The label is usually placed on one of the first sectors of the disk. 73 * Many machines also place a bootstrap in the same area, 74 * in which case the label is embedded in the bootstrap. 75 * The bootstrap source must leave space at the proper offset 76 * for the label on such machines. 77 */ 78 79#ifndef BBSIZE 80#define BBSIZE 8192 /* size of boot area, with label */ 81#endif 82 83#ifdef tahoe 84#define NUMBOOT 0 85#else 86#if defined(__alpha__) || defined(hp300) || defined(hp800) 87#define NUMBOOT 1 88#else 89#define NUMBOOT 2 90#endif 91#endif 92 93void makelabel __P((char *, char *, struct disklabel *)); 94int writelabel __P((int, char *, struct disklabel *)); 95void l_perror __P((char *)); 96struct disklabel * readlabel __P((int)); 97struct disklabel * makebootarea __P((char *, struct disklabel *, int)); 98void display __P((FILE *, struct disklabel *)); 99int edit __P((struct disklabel *, int)); 100int editit __P((void)); 101char * skip __P((char *)); 102char * word __P((char *)); 103int getasciilabel __P((FILE *, struct disklabel *)); 104int checklabel __P((struct disklabel *)); 105void setbootflag __P((struct disklabel *)); 106void Warning (char *, ...); 107void usage __P((void)); 108extern u_short dkcksum __P((struct disklabel *)); 109struct disklabel * getvirginlabel __P((void)); 110 111#define DEFEDITOR _PATH_VI 112#define streq(a,b) (strcmp(a,b) == 0) 113 114char *dkname; 115char *specname; 116char tmpfil[] = _PATH_TMP; 117 118char namebuf[BBSIZE], *np = namebuf; 119struct disklabel lab; 120struct disklabel *readlabel(), *makebootarea(); 121char bootarea[BBSIZE]; 122 123#if NUMBOOT > 0 124int installboot; /* non-zero if we should install a boot program */ 125char *bootbuf; /* pointer to buffer with remainder of boot prog */ 126int bootsize; /* size of remaining boot program */ 127char *xxboot; /* primary boot */ 128char *bootxx; /* secondary boot */ 129char boot0[MAXPATHLEN]; 130char boot1[MAXPATHLEN]; 131#endif 132 133enum { 134 UNSPEC, EDIT, NOWRITE, READ, RESTORE, WRITE, WRITEABLE, WRITEBOOT 135} op = UNSPEC; 136 137int rflag; 138 139#ifdef DEBUG 140int debug; 141#define OPTIONS "BNRWb:ders:w" 142#else 143#define OPTIONS "BNRWb:ers:w" 144#endif 145 146int 147main(argc, argv) 148 int argc; 149 char *argv[]; 150{ 151 register struct disklabel *lp; 152 FILE *t; 153 int ch, f, flag, error = 0; 154 char *name = 0; 155 156 while ((ch = getopt(argc, argv, OPTIONS)) != -1) 157 switch (ch) { 158#if NUMBOOT > 0 159 case 'B': 160 ++installboot; 161 break; 162 case 'b': 163 xxboot = optarg; 164 break; 165#if NUMBOOT > 1 166 case 's': 167 bootxx = optarg; 168 break; 169#endif 170#endif 171 case 'N': 172 if (op != UNSPEC) 173 usage(); 174 op = NOWRITE; 175 break; 176 case 'R': 177 if (op != UNSPEC) 178 usage(); 179 op = RESTORE; 180 break; 181 case 'W': 182 if (op != UNSPEC) 183 usage(); 184 op = WRITEABLE; 185 break; 186 case 'e': 187 if (op != UNSPEC) 188 usage(); 189 op = EDIT; 190 break; 191 case 'r': 192 ++rflag; 193 break; 194 case 'w': 195 if (op != UNSPEC) 196 usage(); 197 op = WRITE; 198 break; 199#ifdef DEBUG 200 case 'd': 201 debug++; 202 break; 203#endif 204 case '?': 205 default: 206 usage(); 207 } 208 argc -= optind; 209 argv += optind; 210#if NUMBOOT > 0 211 if (installboot) { 212 rflag++; 213 if (op == UNSPEC) 214 op = WRITEBOOT; 215 } else { 216 if (op == UNSPEC) 217 op = READ; 218 xxboot = bootxx = 0; 219 } 220#else 221 if (op == UNSPEC) 222 op = READ; 223#endif 224 if (argc < 1) 225 usage(); 226 227 dkname = argv[0]; 228 if (dkname[0] != '/') { 229 (void)sprintf(np, "%sr%s%c", _PATH_DEV, dkname, 'a' + RAW_PART); 230 specname = np; 231 np += strlen(specname) + 1; 232 } else 233 specname = dkname; 234 f = open(specname, op == READ ? O_RDONLY : O_RDWR); 235 if (f < 0 && errno == ENOENT && dkname[0] != '/') { 236 (void)sprintf(specname, "%sr%s", _PATH_DEV, dkname); 237 np = namebuf + strlen(specname) + 1; 238 f = open(specname, op == READ ? O_RDONLY : O_RDWR); 239 } 240 if (f < 0) 241 err(4, "%s", specname); 242 243 switch(op) { 244 245 case EDIT: 246 if (argc != 1) 247 usage(); 248 lp = readlabel(f); 249 error = edit(lp, f); 250 break; 251 252 case NOWRITE: 253 flag = 0; 254 if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) 255 err(4, "ioctl DIOCWLABEL"); 256 break; 257 258 case READ: 259 if (argc != 1) 260 usage(); 261 lp = readlabel(f); 262 display(stdout, lp); 263 error = checklabel(lp); 264 break; 265 266 case RESTORE: 267#if NUMBOOT > 0 268 if (installboot && argc == 3) { 269 makelabel(argv[2], 0, &lab); 270 argc--; 271 272 /* 273 * We only called makelabel() for its side effect 274 * of setting the bootstrap file names. Discard 275 * all changes to `lab' so that all values in the 276 * final label come from the ASCII label. 277 */ 278 bzero((char *)&lab, sizeof(lab)); 279 } 280#endif 281 if (argc != 2) 282 usage(); 283 if (!(t = fopen(argv[1], "r"))) 284 err(4, "%s", argv[1]); 285 if (!getasciilabel(t, &lab)) 286 exit(1); 287 lp = makebootarea(bootarea, &lab, f); 288 *lp = lab; 289 error = writelabel(f, bootarea, lp); 290 break; 291 292 case WRITE: 293 if (argc == 3) { 294 name = argv[2]; 295 argc--; 296 } 297 if (argc != 2) 298 usage(); 299 makelabel(argv[1], name, &lab); 300 lp = makebootarea(bootarea, &lab, f); 301 *lp = lab; 302 if (checklabel(lp) == 0) 303 error = writelabel(f, bootarea, lp); 304 break; 305 306 case WRITEABLE: 307 flag = 1; 308 if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) 309 err(4, "ioctl DIOCWLABEL"); 310 break; 311 312#if NUMBOOT > 0 313 case WRITEBOOT: 314 { 315 struct disklabel tlab; 316 317 lp = readlabel(f); 318 tlab = *lp; 319 if (argc == 2) 320 makelabel(argv[1], 0, &lab); 321 lp = makebootarea(bootarea, &lab, f); 322 *lp = tlab; 323 if (checklabel(lp) == 0) 324 error = writelabel(f, bootarea, lp); 325 break; 326 } 327#endif 328 } 329 exit(error); 330} 331 332/* 333 * Construct a prototype disklabel from /etc/disktab. As a side 334 * effect, set the names of the primary and secondary boot files 335 * if specified. 336 */ 337void 338makelabel(type, name, lp) 339 char *type, *name; 340 register struct disklabel *lp; 341{ 342 register struct disklabel *dp; 343 344 if (strcmp(type, "auto") == 0) 345 dp = getvirginlabel(); 346 else 347 dp = getdiskbyname(type); 348 if (dp == NULL) 349 errx(1, "%s: unknown disk type", type); 350 *lp = *dp; 351#if NUMBOOT > 0 352 /* 353 * Set bootstrap name(s). 354 * 1. If set from command line, use those, 355 * 2. otherwise, check if disktab specifies them (b0 or b1), 356 * 3. otherwise, makebootarea() will choose ones based on the name 357 * of the disk special file. E.g. /dev/ra0 -> raboot, bootra 358 */ 359 if (!xxboot && lp->d_boot0) { 360 if (*lp->d_boot0 != '/') 361 (void)sprintf(boot0, "%s/%s", 362 _PATH_BOOTDIR, lp->d_boot0); 363 else 364 (void)strcpy(boot0, lp->d_boot0); 365 xxboot = boot0; 366 } 367#if NUMBOOT > 1 368 if (!bootxx && lp->d_boot1) { 369 if (*lp->d_boot1 != '/') 370 (void)sprintf(boot1, "%s/%s", 371 _PATH_BOOTDIR, lp->d_boot1); 372 else 373 (void)strcpy(boot1, lp->d_boot1); 374 bootxx = boot1; 375 } 376#endif 377#endif 378 /* d_packname is union d_boot[01], so zero */ 379 bzero(lp->d_packname, sizeof(lp->d_packname)); 380 if (name) 381 (void)strncpy(lp->d_packname, name, sizeof(lp->d_packname)); 382} 383 384int 385writelabel(f, boot, lp) 386 int f; 387 char *boot; 388 register struct disklabel *lp; 389{ 390 int flag; 391#ifdef __alpha__ 392 u_long *p, sum; 393 int i; 394#endif 395#ifdef vax 396 register int i; 397#endif 398 399 setbootflag(lp); 400 lp->d_magic = DISKMAGIC; 401 lp->d_magic2 = DISKMAGIC; 402 lp->d_checksum = 0; 403 lp->d_checksum = dkcksum(lp); 404 if (rflag) { 405 /* 406 * First set the kernel disk label, 407 * then write a label to the raw disk. 408 * If the SDINFO ioctl fails because it is unimplemented, 409 * keep going; otherwise, the kernel consistency checks 410 * may prevent us from changing the current (in-core) 411 * label. 412 */ 413 if (ioctl(f, DIOCSDINFO, lp) < 0 && 414 errno != ENODEV && errno != ENOTTY) { 415 l_perror("ioctl DIOCSDINFO"); 416 return (1); 417 } 418 (void)lseek(f, (off_t)0, SEEK_SET); 419 420#ifdef __alpha__ 421 /* 422 * Generate the bootblock checksum for the SRM console. 423 */ 424 for (p = (u_long *)boot, i = 0, sum = 0; i < 63; i++) 425 sum += p[i]; 426 p[63] = sum; 427#endif 428 429 /* 430 * write enable label sector before write (if necessary), 431 * disable after writing. 432 */ 433 flag = 1; 434 if (ioctl(f, DIOCWLABEL, &flag) < 0) 435 warn("ioctl DIOCWLABEL"); 436 if (write(f, boot, lp->d_bbsize) != lp->d_bbsize) { 437 warn("write"); 438 return (1); 439 } 440#if NUMBOOT > 0 441 /* 442 * Output the remainder of the disklabel 443 */ 444 if (bootbuf && write(f, bootbuf, bootsize) != bootsize) { 445 warn("write"); 446 return(1); 447 } 448#endif 449 flag = 0; 450 (void) ioctl(f, DIOCWLABEL, &flag); 451 } else if (ioctl(f, DIOCWDINFO, lp) < 0) { 452 l_perror("ioctl DIOCWDINFO"); 453 return (1); 454 } 455#ifdef vax 456 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 457 daddr_t alt; 458 459 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 460 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 461 (void)lseek(f, (off_t)((alt + i) * lp->d_secsize), 462 SEEK_SET); 463 if (write(f, boot, lp->d_secsize) < lp->d_secsize) 464 warn("alternate label %d write", i/2); 465 } 466 } 467#endif 468 return (0); 469} 470 471void 472l_perror(s) 473 char *s; 474{ 475 switch (errno) { 476 477 case ESRCH: 478 warnx("%s: no disk label on disk;", s); 479 fprintf(stderr, 480 "use \"disklabel -r\" to install initial label\n"); 481 break; 482 483 case EINVAL: 484 warnx("%s: label magic number or checksum is wrong!", s); 485 fprintf(stderr, "(disklabel or kernel is out of date?)\n"); 486 break; 487 488 case EBUSY: 489 warnx("%s: open partition would move or shrink", s); 490 break; 491 492 case EXDEV: 493 warnx("%s: '%c' partition must start at beginning of disk", 494 s, 'a' + RAW_PART); 495 break; 496 497 default: 498 warn((char *)NULL); 499 break; 500 } 501} 502 503/* 504 * Fetch disklabel for disk. 505 * Use ioctl to get label unless -r flag is given. 506 */ 507struct disklabel * 508readlabel(f) 509 int f; 510{ 511 register struct disklabel *lp; 512 513 if (rflag) { 514 if (read(f, bootarea, BBSIZE) < BBSIZE) 515 err(4, "%s", specname); 516 for (lp = (struct disklabel *)bootarea; 517 lp <= (struct disklabel *)(bootarea + BBSIZE - sizeof(*lp)); 518 lp = (struct disklabel *)((char *)lp + 16)) 519 if (lp->d_magic == DISKMAGIC && 520 lp->d_magic2 == DISKMAGIC) 521 break; 522 if (lp > (struct disklabel *)(bootarea+BBSIZE-sizeof(*lp)) || 523 lp->d_magic != DISKMAGIC || lp->d_magic2 != DISKMAGIC || 524 dkcksum(lp) != 0) 525 errx(1, 526 "bad pack magic number (label is damaged, or pack is unlabeled)"); 527 } else { 528 lp = &lab; 529 if (ioctl(f, DIOCGDINFO, lp) < 0) 530 err(4, "ioctl DIOCGDINFO"); 531 } 532 return (lp); 533} 534 535/* 536 * Construct a bootarea (d_bbsize bytes) in the specified buffer ``boot'' 537 * Returns a pointer to the disklabel portion of the bootarea. 538 */ 539struct disklabel * 540makebootarea(boot, dp, f) 541 char *boot; 542 register struct disklabel *dp; 543 int f; 544{ 545 struct disklabel *lp; 546 register char *p; 547 int b; 548#if NUMBOOT > 0 549 char *dkbasename; 550 struct stat sb; 551#endif 552#ifdef __alpha__ 553 u_long *bootinfo; 554 int n; 555#endif 556#ifdef __i386__ 557 char *tmpbuf; 558 int i, found; 559#endif 560 561 /* XXX */ 562 if (dp->d_secsize == 0) { 563 dp->d_secsize = DEV_BSIZE; 564 dp->d_bbsize = BBSIZE; 565 } 566 lp = (struct disklabel *) 567 (boot + (LABELSECTOR * dp->d_secsize) + LABELOFFSET); 568 bzero((char *)lp, sizeof *lp); 569#if NUMBOOT > 0 570 /* 571 * If we are not installing a boot program but we are installing a 572 * label on disk then we must read the current bootarea so we don't 573 * clobber the existing boot. 574 */ 575 if (!installboot) { 576 if (rflag) { 577 if (read(f, boot, BBSIZE) < BBSIZE) 578 err(4, "%s", specname); 579 bzero((char *)lp, sizeof *lp); 580 } 581 return (lp); 582 } 583 /* 584 * We are installing a boot program. Determine the name(s) and 585 * read them into the appropriate places in the boot area. 586 */ 587 if (!xxboot || !bootxx) { 588 dkbasename = np; 589 if ((p = rindex(dkname, '/')) == NULL) 590 p = dkname; 591 else 592 p++; 593 while (*p && !isdigit(*p)) 594 *np++ = *p++; 595 *np++ = '\0'; 596 597 if (!xxboot) { 598 (void)sprintf(boot0, "%s/boot1", _PATH_BOOTDIR); 599 xxboot = boot0; 600 } 601#if NUMBOOT > 1 602 if (!bootxx) { 603 (void)sprintf(boot1, "%s/boot2", _PATH_BOOTDIR); 604 bootxx = boot1; 605 } 606#endif 607 } 608#ifdef DEBUG 609 if (debug) 610 fprintf(stderr, "bootstraps: xxboot = %s, bootxx = %s\n", 611 xxboot, bootxx ? bootxx : "NONE"); 612#endif 613 614 /* 615 * Strange rules: 616 * 1. One-piece bootstrap (hp300/hp800) 617 * up to d_bbsize bytes of ``xxboot'' go in bootarea, the rest 618 * is remembered and written later following the bootarea. 619 * 2. Two-piece bootstraps (vax/i386?/mips?) 620 * up to d_secsize bytes of ``xxboot'' go in first d_secsize 621 * bytes of bootarea, remaining d_bbsize-d_secsize filled 622 * from ``bootxx''. 623 */ 624 b = open(xxboot, O_RDONLY); 625 if (b < 0) 626 err(4, "%s", xxboot); 627#if NUMBOOT > 1 628#ifdef __i386__ 629 /* 630 * XXX Botch alert. 631 * The i386 has the so-called fdisk table embedded into the 632 * primary bootstrap. We take care to not clobber it, but 633 * only if it does already contain some data. (Otherwise, 634 * the xxboot provides a template.) 635 */ 636 if ((tmpbuf = (char *)malloc((int)dp->d_secsize)) == 0) 637 err(4, "%s", xxboot); 638 memcpy((void *)tmpbuf, (void *)boot, (int)dp->d_secsize); 639#endif /* i386 */ 640 if (read(b, boot, (int)dp->d_secsize) < 0) 641 err(4, "%s", xxboot); 642 (void)close(b); 643#ifdef __i386__ 644 for (i = DOSPARTOFF, found = 0; 645 !found && i < DOSPARTOFF + NDOSPART*sizeof(struct dos_partition); 646 i++) 647 found = tmpbuf[i] != 0; 648 if (found) 649 memcpy((void *)&boot[DOSPARTOFF], 650 (void *)&tmpbuf[DOSPARTOFF], 651 NDOSPART * sizeof(struct dos_partition)); 652 free(tmpbuf); 653#endif /* i386 */ 654 b = open(bootxx, O_RDONLY); 655 if (b < 0) 656 err(4, "%s", bootxx); 657 if (fstat(b, &sb) != 0) 658 err(4, "%s", bootxx); 659 if (dp->d_secsize + sb.st_size > dp->d_bbsize) 660 errx(4, "%s too large", bootxx); 661 if (read(b, &boot[dp->d_secsize], 662 (int)(dp->d_bbsize-dp->d_secsize)) < 0) 663 err(4, "%s", bootxx); 664#else /* !(NUMBOOT > 1) */ 665#ifdef __alpha__ 666 /* 667 * On the alpha, the primary bootstrap starts at the 668 * second sector of the boot area. The first sector 669 * contains the label and must be edited to contain the 670 * size and location of the primary bootstrap. 671 */ 672 n = read(b, boot + dp->d_secsize, (int)dp->d_bbsize); 673 if (n < 0) 674 err(4, "%s", xxboot); 675 bootinfo = (u_long *)(boot + 480); 676 bootinfo[0] = (n + dp->d_secsize - 1) / dp->d_secsize; 677 bootinfo[1] = 1; /* start at sector 1 */ 678 bootinfo[2] = 0; /* flags (must be zero) */ 679#else /* !__alpha__ */ 680 if (read(b, boot, (int)dp->d_bbsize) < 0) 681 err(4, "%s", xxboot); 682#endif /* __alpha__ */ 683 if (fstat(b, &sb) != 0) 684 err(4, "%s", xxboot); 685 bootsize = (int)sb.st_size - dp->d_bbsize; 686 if (bootsize > 0) { 687 /* XXX assume d_secsize is a power of two */ 688 bootsize = (bootsize + dp->d_secsize-1) & ~(dp->d_secsize-1); 689 bootbuf = (char *)malloc((size_t)bootsize); 690 if (bootbuf == 0) 691 err(4, "%s", xxboot); 692 if (read(b, bootbuf, bootsize) < 0) { 693 free(bootbuf); 694 err(4, "%s", xxboot); 695 } 696 } 697#endif /* NUMBOOT > 1 */ 698 (void)close(b); 699#endif /* NUMBOOT > 0 */ 700 /* 701 * Make sure no part of the bootstrap is written in the area 702 * reserved for the label. 703 */ 704 for (p = (char *)lp; p < (char *)lp + sizeof(struct disklabel); p++) 705 if (*p) 706 errx(2, "bootstrap doesn't leave room for disk label"); 707 return (lp); 708} 709 710void 711display(f, lp) 712 FILE *f; 713 register struct disklabel *lp; 714{ 715 register int i, j; 716 register struct partition *pp; 717 718 fprintf(f, "# %s:\n", specname); 719 if ((unsigned) lp->d_type < DKMAXTYPES) 720 fprintf(f, "type: %s\n", dktypenames[lp->d_type]); 721 else 722 fprintf(f, "type: %u\n", lp->d_type); 723 fprintf(f, "disk: %.*s\n", (int)sizeof(lp->d_typename), 724 lp->d_typename); 725 fprintf(f, "label: %.*s\n", (int)sizeof(lp->d_packname), 726 lp->d_packname); 727 fprintf(f, "flags:"); 728 if (lp->d_flags & D_REMOVABLE) 729 fprintf(f, " removeable"); 730 if (lp->d_flags & D_ECC) 731 fprintf(f, " ecc"); 732 if (lp->d_flags & D_BADSECT) 733 fprintf(f, " badsect"); 734 fprintf(f, "\n"); 735 fprintf(f, "bytes/sector: %lu\n", (u_long)lp->d_secsize); 736 fprintf(f, "sectors/track: %lu\n", (u_long)lp->d_nsectors); 737 fprintf(f, "tracks/cylinder: %lu\n", (u_long)lp->d_ntracks); 738 fprintf(f, "sectors/cylinder: %lu\n", (u_long)lp->d_secpercyl); 739 fprintf(f, "cylinders: %lu\n", (u_long)lp->d_ncylinders); 740 fprintf(f, "sectors/unit: %lu\n", (u_long)lp->d_secperunit); 741 fprintf(f, "rpm: %u\n", lp->d_rpm); 742 fprintf(f, "interleave: %u\n", lp->d_interleave); 743 fprintf(f, "trackskew: %u\n", lp->d_trackskew); 744 fprintf(f, "cylinderskew: %u\n", lp->d_cylskew); 745 fprintf(f, "headswitch: %lu\t\t# milliseconds\n", 746 (u_long)lp->d_headswitch); 747 fprintf(f, "track-to-track seek: %ld\t# milliseconds\n", 748 (u_long)lp->d_trkseek); 749 fprintf(f, "drivedata: "); 750 for (i = NDDATA - 1; i >= 0; i--) 751 if (lp->d_drivedata[i]) 752 break; 753 if (i < 0) 754 i = 0; 755 for (j = 0; j <= i; j++) 756 fprintf(f, "%lu ", (u_long)lp->d_drivedata[j]); 757 fprintf(f, "\n\n%u partitions:\n", lp->d_npartitions); 758 fprintf(f, 759 "# size offset fstype [fsize bsize bps/cpg]\n"); 760 pp = lp->d_partitions; 761 for (i = 0; i < lp->d_npartitions; i++, pp++) { 762 if (pp->p_size) { 763 fprintf(f, " %c: %8lu %8lu ", 'a' + i, 764 (u_long)pp->p_size, (u_long)pp->p_offset); 765 if ((unsigned) pp->p_fstype < FSMAXTYPES) 766 fprintf(f, "%8.8s", fstypenames[pp->p_fstype]); 767 else 768 fprintf(f, "%8d", pp->p_fstype); 769 switch (pp->p_fstype) { 770 771 case FS_UNUSED: /* XXX */ 772 fprintf(f, " %5lu %5lu %5.5s ", 773 (u_long)pp->p_fsize, 774 (u_long)(pp->p_fsize * pp->p_frag), ""); 775 break; 776 777 case FS_BSDFFS: 778 fprintf(f, " %5lu %5lu %5u ", 779 (u_long)pp->p_fsize, 780 (u_long)(pp->p_fsize * pp->p_frag), 781 pp->p_cpg); 782 break; 783 784 case FS_BSDLFS: 785 fprintf(f, " %5lu %5lu %5d", 786 (u_long)pp->p_fsize, 787 (u_long)(pp->p_fsize * pp->p_frag), 788 pp->p_cpg); 789 break; 790 791 default: 792 fprintf(f, "%20.20s", ""); 793 break; 794 } 795 fprintf(f, "\t# (Cyl. %4lu", 796 (u_long)(pp->p_offset / lp->d_secpercyl)); 797 if (pp->p_offset % lp->d_secpercyl) 798 putc('*', f); 799 else 800 putc(' ', f); 801 fprintf(f, "- %lu", 802 (u_long)((pp->p_offset + pp->p_size + 803 lp->d_secpercyl - 1) / 804 lp->d_secpercyl - 1)); 805 if (pp->p_size % lp->d_secpercyl) 806 putc('*', f); 807 fprintf(f, ")\n"); 808 } 809 } 810 fflush(f); 811} 812 813int 814edit(lp, f) 815 struct disklabel *lp; 816 int f; 817{ 818 register int c, fd; 819 struct disklabel label; 820 FILE *fp; 821 822 if ((fd = mkstemp(tmpfil)) == -1 || 823 (fp = fdopen(fd, "w")) == NULL) { 824 warnx("can't create %s", tmpfil); 825 return (1); 826 } 827 display(fp, lp); 828 fclose(fp); 829 for (;;) { 830 if (!editit()) 831 break; 832 fp = fopen(tmpfil, "r"); 833 if (fp == NULL) { 834 warnx("can't reopen %s for reading", tmpfil); 835 break; 836 } 837 bzero((char *)&label, sizeof(label)); 838 if (getasciilabel(fp, &label)) { 839 *lp = label; 840 if (writelabel(f, bootarea, lp) == 0) { 841 fclose(fp); 842 (void) unlink(tmpfil); 843 return (0); 844 } 845 } 846 fclose(fp); 847 printf("re-edit the label? [y]: "); fflush(stdout); 848 c = getchar(); 849 if (c != EOF && c != (int)'\n') 850 while (getchar() != (int)'\n') 851 ; 852 if (c == (int)'n') 853 break; 854 } 855 (void) unlink(tmpfil); 856 return (1); 857} 858 859int 860editit() 861{ 862 register int pid, xpid; 863 int stat, omask; 864 extern char *getenv(); 865 866 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 867 while ((pid = fork()) < 0) { 868 extern int errno; 869 870 if (errno == EPROCLIM) { 871 warnx("you have too many processes"); 872 return(0); 873 } 874 if (errno != EAGAIN) { 875 warn("fork"); 876 return(0); 877 } 878 sleep(1); 879 } 880 if (pid == 0) { 881 register char *ed; 882 883 sigsetmask(omask); 884 setgid(getgid()); 885 setuid(getuid()); 886 if ((ed = getenv("EDITOR")) == (char *)0) 887 ed = DEFEDITOR; 888 execlp(ed, ed, tmpfil, 0); 889 err(1, "%s", ed); 890 } 891 while ((xpid = wait(&stat)) >= 0) 892 if (xpid == pid) 893 break; 894 sigsetmask(omask); 895 return(!stat); 896} 897 898char * 899skip(cp) 900 register char *cp; 901{ 902 903 while (*cp != '\0' && isspace(*cp)) 904 cp++; 905 if (*cp == '\0' || *cp == '#') 906 return ((char *)NULL); 907 return (cp); 908} 909 910char * 911word(cp) 912 register char *cp; 913{ 914 register char c; 915 916 while (*cp != '\0' && !isspace(*cp) && *cp != '#') 917 cp++; 918 if ((c = *cp) != '\0') { 919 *cp++ = '\0'; 920 if (c != '#') 921 return (skip(cp)); 922 } 923 return ((char *)NULL); 924} 925 926/* 927 * Read an ascii label in from fd f, 928 * in the same format as that put out by display(), 929 * and fill in lp. 930 */ 931int 932getasciilabel(f, lp) 933 FILE *f; 934 register struct disklabel *lp; 935{ 936 register char **cpp, *cp; 937 register struct partition *pp; 938 char *tp, *s, line[BUFSIZ]; 939 int v, lineno = 0, errors = 0; 940 941 lp->d_bbsize = BBSIZE; /* XXX */ 942 lp->d_sbsize = SBSIZE; /* XXX */ 943 while (fgets(line, sizeof(line) - 1, f)) { 944 lineno++; 945 if ((cp = index(line,'\n')) != 0) 946 *cp = '\0'; 947 cp = skip(line); 948 if (cp == NULL) 949 continue; 950 tp = index(cp, ':'); 951 if (tp == NULL) { 952 fprintf(stderr, "line %d: syntax error\n", lineno); 953 errors++; 954 continue; 955 } 956 *tp++ = '\0', tp = skip(tp); 957 if (streq(cp, "type")) { 958 if (tp == NULL) 959 tp = "unknown"; 960 cpp = dktypenames; 961 for (; cpp < &dktypenames[DKMAXTYPES]; cpp++) 962 if ((s = *cpp) && streq(s, tp)) { 963 lp->d_type = cpp - dktypenames; 964 goto next; 965 } 966 v = atoi(tp); 967 if ((unsigned)v >= DKMAXTYPES) 968 fprintf(stderr, "line %d:%s %d\n", lineno, 969 "Warning, unknown disk type", v); 970 lp->d_type = v; 971 continue; 972 } 973 if (streq(cp, "flags")) { 974 for (v = 0; (cp = tp) && *cp != '\0';) { 975 tp = word(cp); 976 if (streq(cp, "removeable")) 977 v |= D_REMOVABLE; 978 else if (streq(cp, "ecc")) 979 v |= D_ECC; 980 else if (streq(cp, "badsect")) 981 v |= D_BADSECT; 982 else { 983 fprintf(stderr, 984 "line %d: %s: bad flag\n", 985 lineno, cp); 986 errors++; 987 } 988 } 989 lp->d_flags = v; 990 continue; 991 } 992 if (streq(cp, "drivedata")) { 993 register int i; 994 995 for (i = 0; (cp = tp) && *cp != '\0' && i < NDDATA;) { 996 lp->d_drivedata[i++] = atoi(cp); 997 tp = word(cp); 998 } 999 continue; 1000 } 1001 if (sscanf(cp, "%d partitions", &v) == 1) { 1002 if (v == 0 || (unsigned)v > MAXPARTITIONS) { 1003 fprintf(stderr, 1004 "line %d: bad # of partitions\n", lineno); 1005 lp->d_npartitions = MAXPARTITIONS; 1006 errors++; 1007 } else 1008 lp->d_npartitions = v; 1009 continue; 1010 } 1011 if (tp == NULL) 1012 tp = ""; 1013 if (streq(cp, "disk")) { 1014 strncpy(lp->d_typename, tp, sizeof (lp->d_typename)); 1015 continue; 1016 } 1017 if (streq(cp, "label")) { 1018 strncpy(lp->d_packname, tp, sizeof (lp->d_packname)); 1019 continue; 1020 } 1021 if (streq(cp, "bytes/sector")) { 1022 v = atoi(tp); 1023 if (v <= 0 || (v % DEV_BSIZE) != 0) { 1024 fprintf(stderr, 1025 "line %d: %s: bad sector size\n", 1026 lineno, tp); 1027 errors++; 1028 } else 1029 lp->d_secsize = v; 1030 continue; 1031 } 1032 if (streq(cp, "sectors/track")) { 1033 v = atoi(tp); 1034 if (v <= 0) { 1035 fprintf(stderr, "line %d: %s: bad %s\n", 1036 lineno, tp, cp); 1037 errors++; 1038 } else 1039 lp->d_nsectors = v; 1040 continue; 1041 } 1042 if (streq(cp, "sectors/cylinder")) { 1043 v = atoi(tp); 1044 if (v <= 0) { 1045 fprintf(stderr, "line %d: %s: bad %s\n", 1046 lineno, tp, cp); 1047 errors++; 1048 } else 1049 lp->d_secpercyl = v; 1050 continue; 1051 } 1052 if (streq(cp, "tracks/cylinder")) { 1053 v = atoi(tp); 1054 if (v <= 0) { 1055 fprintf(stderr, "line %d: %s: bad %s\n", 1056 lineno, tp, cp); 1057 errors++; 1058 } else 1059 lp->d_ntracks = v; 1060 continue; 1061 } 1062 if (streq(cp, "cylinders")) { 1063 v = atoi(tp); 1064 if (v <= 0) { 1065 fprintf(stderr, "line %d: %s: bad %s\n", 1066 lineno, tp, cp); 1067 errors++; 1068 } else 1069 lp->d_ncylinders = v; 1070 continue; 1071 } 1072 if (streq(cp, "sectors/unit")) { 1073 v = atoi(tp); 1074 if (v <= 0) { 1075 fprintf(stderr, "line %d: %s: bad %s\n", 1076 lineno, tp, cp); 1077 errors++; 1078 } else 1079 lp->d_secperunit = v; 1080 continue; 1081 } 1082 if (streq(cp, "rpm")) { 1083 v = atoi(tp); 1084 if (v <= 0) { 1085 fprintf(stderr, "line %d: %s: bad %s\n", 1086 lineno, tp, cp); 1087 errors++; 1088 } else 1089 lp->d_rpm = v; 1090 continue; 1091 } 1092 if (streq(cp, "interleave")) { 1093 v = atoi(tp); 1094 if (v <= 0) { 1095 fprintf(stderr, "line %d: %s: bad %s\n", 1096 lineno, tp, cp); 1097 errors++; 1098 } else 1099 lp->d_interleave = v; 1100 continue; 1101 } 1102 if (streq(cp, "trackskew")) { 1103 v = atoi(tp); 1104 if (v < 0) { 1105 fprintf(stderr, "line %d: %s: bad %s\n", 1106 lineno, tp, cp); 1107 errors++; 1108 } else 1109 lp->d_trackskew = v; 1110 continue; 1111 } 1112 if (streq(cp, "cylinderskew")) { 1113 v = atoi(tp); 1114 if (v < 0) { 1115 fprintf(stderr, "line %d: %s: bad %s\n", 1116 lineno, tp, cp); 1117 errors++; 1118 } else 1119 lp->d_cylskew = v; 1120 continue; 1121 } 1122 if (streq(cp, "headswitch")) { 1123 v = atoi(tp); 1124 if (v < 0) { 1125 fprintf(stderr, "line %d: %s: bad %s\n", 1126 lineno, tp, cp); 1127 errors++; 1128 } else 1129 lp->d_headswitch = v; 1130 continue; 1131 } 1132 if (streq(cp, "track-to-track seek")) { 1133 v = atoi(tp); 1134 if (v < 0) { 1135 fprintf(stderr, "line %d: %s: bad %s\n", 1136 lineno, tp, cp); 1137 errors++; 1138 } else 1139 lp->d_trkseek = v; 1140 continue; 1141 } 1142 if ('a' <= *cp && *cp <= 'z' && cp[1] == '\0') { 1143 unsigned part = *cp - 'a'; 1144 1145 if (part > lp->d_npartitions) { 1146 fprintf(stderr, 1147 "line %d: bad partition name\n", lineno); 1148 errors++; 1149 continue; 1150 } 1151 pp = &lp->d_partitions[part]; 1152#define NXTNUM(n) { \ 1153 if (tp == NULL) { \ 1154 fprintf(stderr, "line %d: too few numeric fields\n", lineno); \ 1155 errors++; \ 1156 break; \ 1157 } else { \ 1158 cp = tp, tp = word(cp); \ 1159 if (tp == NULL) \ 1160 tp = cp; \ 1161 (n) = atoi(cp); \ 1162 } \ 1163 } 1164 1165 NXTNUM(v); 1166 if (v < 0) { 1167 fprintf(stderr, 1168 "line %d: %s: bad partition size\n", 1169 lineno, cp); 1170 errors++; 1171 } else 1172 pp->p_size = v; 1173 NXTNUM(v); 1174 if (v < 0) { 1175 fprintf(stderr, 1176 "line %d: %s: bad partition offset\n", 1177 lineno, cp); 1178 errors++; 1179 } else 1180 pp->p_offset = v; 1181 cp = tp, tp = word(cp); 1182 cpp = fstypenames; 1183 for (; cpp < &fstypenames[FSMAXTYPES]; cpp++) 1184 if ((s = *cpp) && streq(s, cp)) { 1185 pp->p_fstype = cpp - fstypenames; 1186 goto gottype; 1187 } 1188 if (isdigit(*cp)) 1189 v = atoi(cp); 1190 else 1191 v = FSMAXTYPES; 1192 if ((unsigned)v >= FSMAXTYPES) { 1193 fprintf(stderr, "line %d: %s %s\n", lineno, 1194 "Warning, unknown filesystem type", cp); 1195 v = FS_UNUSED; 1196 } 1197 pp->p_fstype = v; 1198 gottype: 1199 1200 switch (pp->p_fstype) { 1201 1202 case FS_UNUSED: /* XXX */ 1203 NXTNUM(pp->p_fsize); 1204 if (pp->p_fsize == 0) 1205 break; 1206 NXTNUM(v); 1207 pp->p_frag = v / pp->p_fsize; 1208 break; 1209 1210 case FS_BSDFFS: 1211 NXTNUM(pp->p_fsize); 1212 if (pp->p_fsize == 0) 1213 break; 1214 NXTNUM(v); 1215 pp->p_frag = v / pp->p_fsize; 1216 NXTNUM(pp->p_cpg); 1217 break; 1218 1219 case FS_BSDLFS: 1220 NXTNUM(pp->p_fsize); 1221 if (pp->p_fsize == 0) 1222 break; 1223 NXTNUM(v); 1224 pp->p_frag = v / pp->p_fsize; 1225 NXTNUM(pp->p_cpg); 1226 break; 1227 1228 default: 1229 break; 1230 } 1231 continue; 1232 } 1233 fprintf(stderr, "line %d: %s: Unknown disklabel field\n", 1234 lineno, cp); 1235 errors++; 1236 next: 1237 ; 1238 } 1239 errors += checklabel(lp); 1240 return (errors == 0); 1241} 1242 1243/* 1244 * Check disklabel for errors and fill in 1245 * derived fields according to supplied values. 1246 */ 1247int 1248checklabel(lp) 1249 register struct disklabel *lp; 1250{ 1251 register struct partition *pp; 1252 int i, errors = 0; 1253 char part; 1254 1255 if (lp->d_secsize == 0) { 1256 fprintf(stderr, "sector size 0\n"); 1257 return (1); 1258 } 1259 if (lp->d_nsectors == 0) { 1260 fprintf(stderr, "sectors/track 0\n"); 1261 return (1); 1262 } 1263 if (lp->d_ntracks == 0) { 1264 fprintf(stderr, "tracks/cylinder 0\n"); 1265 return (1); 1266 } 1267 if (lp->d_ncylinders == 0) { 1268 fprintf(stderr, "cylinders/unit 0\n"); 1269 errors++; 1270 } 1271 if (lp->d_rpm == 0) 1272 Warning("revolutions/minute 0"); 1273 if (lp->d_secpercyl == 0) 1274 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 1275 if (lp->d_secperunit == 0) 1276 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 1277 if (lp->d_bbsize == 0) { 1278 fprintf(stderr, "boot block size 0\n"); 1279 errors++; 1280 } else if (lp->d_bbsize % lp->d_secsize) 1281 Warning("boot block size %% sector-size != 0"); 1282 if (lp->d_sbsize == 0) { 1283 fprintf(stderr, "super block size 0\n"); 1284 errors++; 1285 } else if (lp->d_sbsize % lp->d_secsize) 1286 Warning("super block size %% sector-size != 0"); 1287 if (lp->d_npartitions > MAXPARTITIONS) 1288 Warning("number of partitions (%lu) > MAXPARTITIONS (%d)", 1289 (u_long)lp->d_npartitions, MAXPARTITIONS); 1290 for (i = 0; i < lp->d_npartitions; i++) { 1291 part = 'a' + i; 1292 pp = &lp->d_partitions[i]; 1293 if (pp->p_size == 0 && pp->p_offset != 0) 1294 Warning("partition %c: size 0, but offset %lu", 1295 part, (u_long)pp->p_offset); 1296#ifdef notdef 1297 if (pp->p_size % lp->d_secpercyl) 1298 Warning("partition %c: size %% cylinder-size != 0", 1299 part); 1300 if (pp->p_offset % lp->d_secpercyl) 1301 Warning("partition %c: offset %% cylinder-size != 0", 1302 part); 1303#endif 1304 if (pp->p_offset > lp->d_secperunit) { 1305 fprintf(stderr, 1306 "partition %c: offset past end of unit\n", part); 1307 errors++; 1308 } 1309 if (pp->p_offset + pp->p_size > lp->d_secperunit) { 1310 fprintf(stderr, 1311 "partition %c: partition extends past end of unit\n", 1312 part); 1313 errors++; 1314 } 1315 } 1316 for (; i < MAXPARTITIONS; i++) { 1317 part = 'a' + i; 1318 pp = &lp->d_partitions[i]; 1319 if (pp->p_size || pp->p_offset) 1320 Warning("unused partition %c: size %d offset %lu", 1321 'a' + i, pp->p_size, (u_long)pp->p_offset); 1322 } 1323 return (errors); 1324} 1325 1326/* 1327 * When operating on a "virgin" disk, try getting an initial label 1328 * from the associated device driver. This might work for all device 1329 * drivers that are able to fetch some initial device parameters 1330 * without even having access to a (BSD) disklabel, like SCSI disks, 1331 * most IDE drives, or vn devices. 1332 * 1333 * The device name must be given in its "canonical" form. 1334 */ 1335struct disklabel * 1336getvirginlabel(void) 1337{ 1338 static struct disklabel lab; 1339 char namebuf[BBSIZE]; 1340 int f; 1341 1342 if (dkname[0] == '/') { 1343 warnx("\"auto\" requires the usage of a canonical disk name"); 1344 return (NULL); 1345 } 1346 (void)snprintf(namebuf, BBSIZE, "%sr%s", _PATH_DEV, dkname); 1347 if ((f = open(namebuf, O_RDONLY)) == -1) { 1348 warn("cannot open %s", namebuf); 1349 return (NULL); 1350 } 1351 if (ioctl(f, DIOCGDINFO, &lab) < 0) { 1352 warn("ioctl DIOCGDINFO"); 1353 close(f); 1354 return (NULL); 1355 } 1356 close(f); 1357 lab.d_boot0 = NULL; 1358 lab.d_boot1 = NULL; 1359 return (&lab); 1360} 1361 1362/* 1363 * If we are installing a boot program that doesn't fit in d_bbsize 1364 * we need to mark those partitions that the boot overflows into. 1365 * This allows newfs to prevent creation of a filesystem where it might 1366 * clobber bootstrap code. 1367 */ 1368void 1369setbootflag(lp) 1370 register struct disklabel *lp; 1371{ 1372 register struct partition *pp; 1373 int i, errors = 0; 1374 char part; 1375 u_long boffset; 1376 1377 if (bootbuf == 0) 1378 return; 1379 boffset = bootsize / lp->d_secsize; 1380 for (i = 0; i < lp->d_npartitions; i++) { 1381 part = 'a' + i; 1382 pp = &lp->d_partitions[i]; 1383 if (pp->p_size == 0) 1384 continue; 1385 if (boffset <= pp->p_offset) { 1386 if (pp->p_fstype == FS_BOOT) 1387 pp->p_fstype = FS_UNUSED; 1388 } else if (pp->p_fstype != FS_BOOT) { 1389 if (pp->p_fstype != FS_UNUSED) { 1390 fprintf(stderr, 1391 "boot overlaps used partition %c\n", 1392 part); 1393 errors++; 1394 } else { 1395 pp->p_fstype = FS_BOOT; 1396 Warning("boot overlaps partition %c, %s", 1397 part, "marked as FS_BOOT"); 1398 } 1399 } 1400 } 1401 if (errors) 1402 errx(4, "cannot install boot program"); 1403} 1404 1405/*VARARGS1*/ 1406void 1407Warning(char *fmt, ...) 1408{ 1409 va_list ap; 1410 1411 fprintf(stderr, "Warning, "); 1412 va_start(ap, fmt); 1413 vfprintf(stderr, fmt, ap); 1414 fprintf(stderr, "\n"); 1415 va_end(ap); 1416} 1417 1418void 1419usage() 1420{ 1421#if NUMBOOT > 0 1422 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 1423 "usage: disklabel [-r] disk", 1424 "\t\t(to read label)", 1425 " disklabel -w [-r] disk type [ packid ]", 1426 "\t\t(to write label with existing boot program)", 1427 " disklabel -e [-r] disk", 1428 "\t\t(to edit label)", 1429 " disklabel -R [-r] disk protofile", 1430 "\t\t(to restore label with existing boot program)", 1431#if NUMBOOT > 1 1432 " disklabel -B [ -b boot1 [ -s boot2 ] ] disk [ type ]", 1433 "\t\t(to install boot program with existing label)", 1434 " disklabel -w -B [ -b boot1 [ -s boot2 ] ] disk type [ packid ]", 1435 "\t\t(to write label and boot program)", 1436 " disklabel -R -B [ -b boot1 [ -s boot2 ] ] disk protofile [ type ]", 1437 "\t\t(to restore label and boot program)", 1438#else 1439 " disklabel -B [ -b bootprog ] disk [ type ]", 1440 "\t\t(to install boot program with existing on-disk label)", 1441 " disklabel -w -B [ -b bootprog ] disk type [ packid ]", 1442 "\t\t(to write label and install boot program)", 1443 " disklabel -R -B [ -b bootprog ] disk protofile [ type ]", 1444 "\t\t(to restore label and install boot program)", 1445#endif 1446 " disklabel [-NW] disk", 1447 "\t\t(to write disable/enable label)"); 1448#else 1449 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 1450 "usage: disklabel [-r] disk", "(to read label)", 1451 " disklabel -w [-r] disk type [ packid ]", 1452 "\t\t(to write label)", 1453 " disklabel -e [-r] disk", 1454 "\t\t(to edit label)", 1455 " disklabel -R [-r] disk protofile", 1456 "\t\t(to restore label)", 1457 " disklabel [-NW] disk", 1458 "\t\t(to write disable/enable label)"); 1459#endif 1460 exit(1); 1461} 1462