bsdlabel.c revision 40475
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 1.21 1998/08/23 07:32:37 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, 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(np, "%s/%sboot", 599 _PATH_BOOTDIR, dkbasename); 600 if (access(np, F_OK) < 0 && dkbasename[0] == 'r') 601 dkbasename++; 602 xxboot = np; 603 (void)sprintf(xxboot, "%s/%sboot", 604 _PATH_BOOTDIR, dkbasename); 605 np += strlen(xxboot) + 1; 606 } 607#if NUMBOOT > 1 608 if (!bootxx) { 609 (void)sprintf(np, "%s/boot%s", 610 _PATH_BOOTDIR, dkbasename); 611 if (access(np, F_OK) < 0 && dkbasename[0] == 'r') 612 dkbasename++; 613 bootxx = np; 614 (void)sprintf(bootxx, "%s/boot%s", 615 _PATH_BOOTDIR, dkbasename); 616 np += strlen(bootxx) + 1; 617 } 618#endif 619 } 620#ifdef DEBUG 621 if (debug) 622 fprintf(stderr, "bootstraps: xxboot = %s, bootxx = %s\n", 623 xxboot, bootxx ? bootxx : "NONE"); 624#endif 625 626 /* 627 * Strange rules: 628 * 1. One-piece bootstrap (hp300/hp800) 629 * up to d_bbsize bytes of ``xxboot'' go in bootarea, the rest 630 * is remembered and written later following the bootarea. 631 * 2. Two-piece bootstraps (vax/i386?/mips?) 632 * up to d_secsize bytes of ``xxboot'' go in first d_secsize 633 * bytes of bootarea, remaining d_bbsize-d_secsize filled 634 * from ``bootxx''. 635 */ 636 b = open(xxboot, O_RDONLY); 637 if (b < 0) 638 err(4, "%s", xxboot); 639#if NUMBOOT > 1 640#ifdef __i386__ 641 /* 642 * XXX Botch alert. 643 * The i386 has the so-called fdisk table embedded into the 644 * primary bootstrap. We take care to not clobber it, but 645 * only if it does already contain some data. (Otherwise, 646 * the xxboot provides a template.) 647 */ 648 if ((tmpbuf = (char *)malloc((int)dp->d_secsize)) == 0) 649 err(4, "%s", xxboot); 650 memcpy((void *)tmpbuf, (void *)boot, (int)dp->d_secsize); 651#endif /* i386 */ 652 if (read(b, boot, (int)dp->d_secsize) < 0) 653 err(4, "%s", xxboot); 654 (void)close(b); 655#ifdef __i386__ 656 for (i = DOSPARTOFF, found = 0; 657 !found && i < DOSPARTOFF + NDOSPART*sizeof(struct dos_partition); 658 i++) 659 found = tmpbuf[i] != 0; 660 if (found) 661 memcpy((void *)&boot[DOSPARTOFF], 662 (void *)&tmpbuf[DOSPARTOFF], 663 NDOSPART * sizeof(struct dos_partition)); 664 free(tmpbuf); 665#endif /* i386 */ 666 b = open(bootxx, O_RDONLY); 667 if (b < 0) 668 err(4, "%s", bootxx); 669 if (fstat(b, &sb) != 0) 670 err(4, "%s", bootxx); 671 if (dp->d_secsize + sb.st_size > dp->d_bbsize) 672 errx(4, "%s too large", bootxx); 673 if (read(b, &boot[dp->d_secsize], 674 (int)(dp->d_bbsize-dp->d_secsize)) < 0) 675 err(4, "%s", bootxx); 676#else /* !(NUMBOOT > 1) */ 677#ifdef __alpha__ 678 /* 679 * On the alpha, the primary bootstrap starts at the 680 * second sector of the boot area. The first sector 681 * contains the label and must be edited to contain the 682 * size and location of the primary bootstrap. 683 */ 684 n = read(b, boot + dp->d_secsize, (int)dp->d_bbsize); 685 if (n < 0) 686 err(4, "%s", xxboot); 687 bootinfo = (u_long *)(boot + 480); 688 bootinfo[0] = (n + dp->d_secsize - 1) / dp->d_secsize; 689 bootinfo[1] = 1; /* start at sector 1 */ 690 bootinfo[2] = 0; /* flags (must be zero) */ 691#else /* !__alpha__ */ 692 if (read(b, boot, (int)dp->d_bbsize) < 0) 693 err(4, "%s", xxboot); 694#endif /* __alpha__ */ 695 if (fstat(b, &sb) != 0) 696 err(4, "%s", xxboot); 697 bootsize = (int)sb.st_size - dp->d_bbsize; 698 if (bootsize > 0) { 699 /* XXX assume d_secsize is a power of two */ 700 bootsize = (bootsize + dp->d_secsize-1) & ~(dp->d_secsize-1); 701 bootbuf = (char *)malloc((size_t)bootsize); 702 if (bootbuf == 0) 703 err(4, "%s", xxboot); 704 if (read(b, bootbuf, bootsize) < 0) { 705 free(bootbuf); 706 err(4, "%s", xxboot); 707 } 708 } 709#endif /* NUMBOOT > 1 */ 710 (void)close(b); 711#endif /* NUMBOOT > 0 */ 712 /* 713 * Make sure no part of the bootstrap is written in the area 714 * reserved for the label. 715 */ 716 for (p = (char *)lp; p < (char *)lp + sizeof(struct disklabel); p++) 717 if (*p) 718 errx(2, "bootstrap doesn't leave room for disk label"); 719 return (lp); 720} 721 722void 723display(f, lp) 724 FILE *f; 725 register struct disklabel *lp; 726{ 727 register int i, j; 728 register struct partition *pp; 729 730 fprintf(f, "# %s:\n", specname); 731 if ((unsigned) lp->d_type < DKMAXTYPES) 732 fprintf(f, "type: %s\n", dktypenames[lp->d_type]); 733 else 734 fprintf(f, "type: %u\n", lp->d_type); 735 fprintf(f, "disk: %.*s\n", (int)sizeof(lp->d_typename), 736 lp->d_typename); 737 fprintf(f, "label: %.*s\n", (int)sizeof(lp->d_packname), 738 lp->d_packname); 739 fprintf(f, "flags:"); 740 if (lp->d_flags & D_REMOVABLE) 741 fprintf(f, " removeable"); 742 if (lp->d_flags & D_ECC) 743 fprintf(f, " ecc"); 744 if (lp->d_flags & D_BADSECT) 745 fprintf(f, " badsect"); 746 fprintf(f, "\n"); 747 fprintf(f, "bytes/sector: %lu\n", (u_long)lp->d_secsize); 748 fprintf(f, "sectors/track: %lu\n", (u_long)lp->d_nsectors); 749 fprintf(f, "tracks/cylinder: %lu\n", (u_long)lp->d_ntracks); 750 fprintf(f, "sectors/cylinder: %lu\n", (u_long)lp->d_secpercyl); 751 fprintf(f, "cylinders: %lu\n", (u_long)lp->d_ncylinders); 752 fprintf(f, "sectors/unit: %lu\n", (u_long)lp->d_secperunit); 753 fprintf(f, "rpm: %u\n", lp->d_rpm); 754 fprintf(f, "interleave: %u\n", lp->d_interleave); 755 fprintf(f, "trackskew: %u\n", lp->d_trackskew); 756 fprintf(f, "cylinderskew: %u\n", lp->d_cylskew); 757 fprintf(f, "headswitch: %lu\t\t# milliseconds\n", 758 (u_long)lp->d_headswitch); 759 fprintf(f, "track-to-track seek: %ld\t# milliseconds\n", 760 (u_long)lp->d_trkseek); 761 fprintf(f, "drivedata: "); 762 for (i = NDDATA - 1; i >= 0; i--) 763 if (lp->d_drivedata[i]) 764 break; 765 if (i < 0) 766 i = 0; 767 for (j = 0; j <= i; j++) 768 fprintf(f, "%lu ", (u_long)lp->d_drivedata[j]); 769 fprintf(f, "\n\n%u partitions:\n", lp->d_npartitions); 770 fprintf(f, 771 "# size offset fstype [fsize bsize bps/cpg]\n"); 772 pp = lp->d_partitions; 773 for (i = 0; i < lp->d_npartitions; i++, pp++) { 774 if (pp->p_size) { 775 fprintf(f, " %c: %8lu %8lu ", 'a' + i, 776 (u_long)pp->p_size, (u_long)pp->p_offset); 777 if ((unsigned) pp->p_fstype < FSMAXTYPES) 778 fprintf(f, "%8.8s", fstypenames[pp->p_fstype]); 779 else 780 fprintf(f, "%8d", pp->p_fstype); 781 switch (pp->p_fstype) { 782 783 case FS_UNUSED: /* XXX */ 784 fprintf(f, " %5lu %5lu %5.5s ", 785 (u_long)pp->p_fsize, 786 (u_long)(pp->p_fsize * pp->p_frag), ""); 787 break; 788 789 case FS_BSDFFS: 790 fprintf(f, " %5lu %5lu %5u ", 791 (u_long)pp->p_fsize, 792 (u_long)(pp->p_fsize * pp->p_frag), 793 pp->p_cpg); 794 break; 795 796 case FS_BSDLFS: 797 fprintf(f, " %5lu %5lu %5d", 798 (u_long)pp->p_fsize, 799 (u_long)(pp->p_fsize * pp->p_frag), 800 pp->p_cpg); 801 break; 802 803 default: 804 fprintf(f, "%20.20s", ""); 805 break; 806 } 807 fprintf(f, "\t# (Cyl. %4lu", 808 (u_long)(pp->p_offset / lp->d_secpercyl)); 809 if (pp->p_offset % lp->d_secpercyl) 810 putc('*', f); 811 else 812 putc(' ', f); 813 fprintf(f, "- %lu", 814 (u_long)((pp->p_offset + pp->p_size + 815 lp->d_secpercyl - 1) / 816 lp->d_secpercyl - 1)); 817 if (pp->p_size % lp->d_secpercyl) 818 putc('*', f); 819 fprintf(f, ")\n"); 820 } 821 } 822 fflush(f); 823} 824 825int 826edit(lp, f) 827 struct disklabel *lp; 828 int f; 829{ 830 register int c, fd; 831 struct disklabel label; 832 FILE *fp; 833 834 if ((fd = mkstemp(tmpfil)) == -1 || 835 (fp = fdopen(fd, "w")) == NULL) { 836 warnx("can't create %s", tmpfil); 837 return (1); 838 } 839 display(fp, lp); 840 fclose(fp); 841 for (;;) { 842 if (!editit()) 843 break; 844 fp = fopen(tmpfil, "r"); 845 if (fp == NULL) { 846 warnx("can't reopen %s for reading", tmpfil); 847 break; 848 } 849 bzero((char *)&label, sizeof(label)); 850 if (getasciilabel(fp, &label)) { 851 *lp = label; 852 if (writelabel(f, bootarea, lp) == 0) { 853 fclose(fp); 854 (void) unlink(tmpfil); 855 return (0); 856 } 857 } 858 fclose(fp); 859 printf("re-edit the label? [y]: "); fflush(stdout); 860 c = getchar(); 861 if (c != EOF && c != (int)'\n') 862 while (getchar() != (int)'\n') 863 ; 864 if (c == (int)'n') 865 break; 866 } 867 (void) unlink(tmpfil); 868 return (1); 869} 870 871int 872editit() 873{ 874 register int pid, xpid; 875 int stat, omask; 876 extern char *getenv(); 877 878 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 879 while ((pid = fork()) < 0) { 880 extern int errno; 881 882 if (errno == EPROCLIM) { 883 warnx("you have too many processes"); 884 return(0); 885 } 886 if (errno != EAGAIN) { 887 warn("fork"); 888 return(0); 889 } 890 sleep(1); 891 } 892 if (pid == 0) { 893 register char *ed; 894 895 sigsetmask(omask); 896 setgid(getgid()); 897 setuid(getuid()); 898 if ((ed = getenv("EDITOR")) == (char *)0) 899 ed = DEFEDITOR; 900 execlp(ed, ed, tmpfil, 0); 901 err(1, "%s", ed); 902 } 903 while ((xpid = wait(&stat)) >= 0) 904 if (xpid == pid) 905 break; 906 sigsetmask(omask); 907 return(!stat); 908} 909 910char * 911skip(cp) 912 register char *cp; 913{ 914 915 while (*cp != '\0' && isspace(*cp)) 916 cp++; 917 if (*cp == '\0' || *cp == '#') 918 return ((char *)NULL); 919 return (cp); 920} 921 922char * 923word(cp) 924 register char *cp; 925{ 926 register char c; 927 928 while (*cp != '\0' && !isspace(*cp) && *cp != '#') 929 cp++; 930 if ((c = *cp) != '\0') { 931 *cp++ = '\0'; 932 if (c != '#') 933 return (skip(cp)); 934 } 935 return ((char *)NULL); 936} 937 938/* 939 * Read an ascii label in from fd f, 940 * in the same format as that put out by display(), 941 * and fill in lp. 942 */ 943int 944getasciilabel(f, lp) 945 FILE *f; 946 register struct disklabel *lp; 947{ 948 register char **cpp, *cp; 949 register struct partition *pp; 950 char *tp, *s, line[BUFSIZ]; 951 int v, lineno = 0, errors = 0; 952 953 lp->d_bbsize = BBSIZE; /* XXX */ 954 lp->d_sbsize = SBSIZE; /* XXX */ 955 while (fgets(line, sizeof(line) - 1, f)) { 956 lineno++; 957 if ((cp = index(line,'\n')) != 0) 958 *cp = '\0'; 959 cp = skip(line); 960 if (cp == NULL) 961 continue; 962 tp = index(cp, ':'); 963 if (tp == NULL) { 964 fprintf(stderr, "line %d: syntax error\n", lineno); 965 errors++; 966 continue; 967 } 968 *tp++ = '\0', tp = skip(tp); 969 if (streq(cp, "type")) { 970 if (tp == NULL) 971 tp = "unknown"; 972 cpp = dktypenames; 973 for (; cpp < &dktypenames[DKMAXTYPES]; cpp++) 974 if ((s = *cpp) && streq(s, tp)) { 975 lp->d_type = cpp - dktypenames; 976 goto next; 977 } 978 v = atoi(tp); 979 if ((unsigned)v >= DKMAXTYPES) 980 fprintf(stderr, "line %d:%s %d\n", lineno, 981 "Warning, unknown disk type", v); 982 lp->d_type = v; 983 continue; 984 } 985 if (streq(cp, "flags")) { 986 for (v = 0; (cp = tp) && *cp != '\0';) { 987 tp = word(cp); 988 if (streq(cp, "removeable")) 989 v |= D_REMOVABLE; 990 else if (streq(cp, "ecc")) 991 v |= D_ECC; 992 else if (streq(cp, "badsect")) 993 v |= D_BADSECT; 994 else { 995 fprintf(stderr, 996 "line %d: %s: bad flag\n", 997 lineno, cp); 998 errors++; 999 } 1000 } 1001 lp->d_flags = v; 1002 continue; 1003 } 1004 if (streq(cp, "drivedata")) { 1005 register int i; 1006 1007 for (i = 0; (cp = tp) && *cp != '\0' && i < NDDATA;) { 1008 lp->d_drivedata[i++] = atoi(cp); 1009 tp = word(cp); 1010 } 1011 continue; 1012 } 1013 if (sscanf(cp, "%d partitions", &v) == 1) { 1014 if (v == 0 || (unsigned)v > MAXPARTITIONS) { 1015 fprintf(stderr, 1016 "line %d: bad # of partitions\n", lineno); 1017 lp->d_npartitions = MAXPARTITIONS; 1018 errors++; 1019 } else 1020 lp->d_npartitions = v; 1021 continue; 1022 } 1023 if (tp == NULL) 1024 tp = ""; 1025 if (streq(cp, "disk")) { 1026 strncpy(lp->d_typename, tp, sizeof (lp->d_typename)); 1027 continue; 1028 } 1029 if (streq(cp, "label")) { 1030 strncpy(lp->d_packname, tp, sizeof (lp->d_packname)); 1031 continue; 1032 } 1033 if (streq(cp, "bytes/sector")) { 1034 v = atoi(tp); 1035 if (v <= 0 || (v % DEV_BSIZE) != 0) { 1036 fprintf(stderr, 1037 "line %d: %s: bad sector size\n", 1038 lineno, tp); 1039 errors++; 1040 } else 1041 lp->d_secsize = v; 1042 continue; 1043 } 1044 if (streq(cp, "sectors/track")) { 1045 v = atoi(tp); 1046 if (v <= 0) { 1047 fprintf(stderr, "line %d: %s: bad %s\n", 1048 lineno, tp, cp); 1049 errors++; 1050 } else 1051 lp->d_nsectors = v; 1052 continue; 1053 } 1054 if (streq(cp, "sectors/cylinder")) { 1055 v = atoi(tp); 1056 if (v <= 0) { 1057 fprintf(stderr, "line %d: %s: bad %s\n", 1058 lineno, tp, cp); 1059 errors++; 1060 } else 1061 lp->d_secpercyl = v; 1062 continue; 1063 } 1064 if (streq(cp, "tracks/cylinder")) { 1065 v = atoi(tp); 1066 if (v <= 0) { 1067 fprintf(stderr, "line %d: %s: bad %s\n", 1068 lineno, tp, cp); 1069 errors++; 1070 } else 1071 lp->d_ntracks = v; 1072 continue; 1073 } 1074 if (streq(cp, "cylinders")) { 1075 v = atoi(tp); 1076 if (v <= 0) { 1077 fprintf(stderr, "line %d: %s: bad %s\n", 1078 lineno, tp, cp); 1079 errors++; 1080 } else 1081 lp->d_ncylinders = v; 1082 continue; 1083 } 1084 if (streq(cp, "sectors/unit")) { 1085 v = atoi(tp); 1086 if (v <= 0) { 1087 fprintf(stderr, "line %d: %s: bad %s\n", 1088 lineno, tp, cp); 1089 errors++; 1090 } else 1091 lp->d_secperunit = v; 1092 continue; 1093 } 1094 if (streq(cp, "rpm")) { 1095 v = atoi(tp); 1096 if (v <= 0) { 1097 fprintf(stderr, "line %d: %s: bad %s\n", 1098 lineno, tp, cp); 1099 errors++; 1100 } else 1101 lp->d_rpm = v; 1102 continue; 1103 } 1104 if (streq(cp, "interleave")) { 1105 v = atoi(tp); 1106 if (v <= 0) { 1107 fprintf(stderr, "line %d: %s: bad %s\n", 1108 lineno, tp, cp); 1109 errors++; 1110 } else 1111 lp->d_interleave = v; 1112 continue; 1113 } 1114 if (streq(cp, "trackskew")) { 1115 v = atoi(tp); 1116 if (v < 0) { 1117 fprintf(stderr, "line %d: %s: bad %s\n", 1118 lineno, tp, cp); 1119 errors++; 1120 } else 1121 lp->d_trackskew = v; 1122 continue; 1123 } 1124 if (streq(cp, "cylinderskew")) { 1125 v = atoi(tp); 1126 if (v < 0) { 1127 fprintf(stderr, "line %d: %s: bad %s\n", 1128 lineno, tp, cp); 1129 errors++; 1130 } else 1131 lp->d_cylskew = v; 1132 continue; 1133 } 1134 if (streq(cp, "headswitch")) { 1135 v = atoi(tp); 1136 if (v < 0) { 1137 fprintf(stderr, "line %d: %s: bad %s\n", 1138 lineno, tp, cp); 1139 errors++; 1140 } else 1141 lp->d_headswitch = v; 1142 continue; 1143 } 1144 if (streq(cp, "track-to-track seek")) { 1145 v = atoi(tp); 1146 if (v < 0) { 1147 fprintf(stderr, "line %d: %s: bad %s\n", 1148 lineno, tp, cp); 1149 errors++; 1150 } else 1151 lp->d_trkseek = v; 1152 continue; 1153 } 1154 if ('a' <= *cp && *cp <= 'z' && cp[1] == '\0') { 1155 unsigned part = *cp - 'a'; 1156 1157 if (part > lp->d_npartitions) { 1158 fprintf(stderr, 1159 "line %d: bad partition name\n", lineno); 1160 errors++; 1161 continue; 1162 } 1163 pp = &lp->d_partitions[part]; 1164#define NXTNUM(n) { \ 1165 if (tp == NULL) { \ 1166 fprintf(stderr, "line %d: too few numeric fields\n", lineno); \ 1167 errors++; \ 1168 break; \ 1169 } else { \ 1170 cp = tp, tp = word(cp); \ 1171 if (tp == NULL) \ 1172 tp = cp; \ 1173 (n) = atoi(cp); \ 1174 } \ 1175 } 1176 1177 NXTNUM(v); 1178 if (v < 0) { 1179 fprintf(stderr, 1180 "line %d: %s: bad partition size\n", 1181 lineno, cp); 1182 errors++; 1183 } else 1184 pp->p_size = v; 1185 NXTNUM(v); 1186 if (v < 0) { 1187 fprintf(stderr, 1188 "line %d: %s: bad partition offset\n", 1189 lineno, cp); 1190 errors++; 1191 } else 1192 pp->p_offset = v; 1193 cp = tp, tp = word(cp); 1194 cpp = fstypenames; 1195 for (; cpp < &fstypenames[FSMAXTYPES]; cpp++) 1196 if ((s = *cpp) && streq(s, cp)) { 1197 pp->p_fstype = cpp - fstypenames; 1198 goto gottype; 1199 } 1200 if (isdigit(*cp)) 1201 v = atoi(cp); 1202 else 1203 v = FSMAXTYPES; 1204 if ((unsigned)v >= FSMAXTYPES) { 1205 fprintf(stderr, "line %d: %s %s\n", lineno, 1206 "Warning, unknown filesystem type", cp); 1207 v = FS_UNUSED; 1208 } 1209 pp->p_fstype = v; 1210 gottype: 1211 1212 switch (pp->p_fstype) { 1213 1214 case FS_UNUSED: /* XXX */ 1215 NXTNUM(pp->p_fsize); 1216 if (pp->p_fsize == 0) 1217 break; 1218 NXTNUM(v); 1219 pp->p_frag = v / pp->p_fsize; 1220 break; 1221 1222 case FS_BSDFFS: 1223 NXTNUM(pp->p_fsize); 1224 if (pp->p_fsize == 0) 1225 break; 1226 NXTNUM(v); 1227 pp->p_frag = v / pp->p_fsize; 1228 NXTNUM(pp->p_cpg); 1229 break; 1230 1231 case FS_BSDLFS: 1232 NXTNUM(pp->p_fsize); 1233 if (pp->p_fsize == 0) 1234 break; 1235 NXTNUM(v); 1236 pp->p_frag = v / pp->p_fsize; 1237 NXTNUM(pp->p_cpg); 1238 break; 1239 1240 default: 1241 break; 1242 } 1243 continue; 1244 } 1245 fprintf(stderr, "line %d: %s: Unknown disklabel field\n", 1246 lineno, cp); 1247 errors++; 1248 next: 1249 ; 1250 } 1251 errors += checklabel(lp); 1252 return (errors == 0); 1253} 1254 1255/* 1256 * Check disklabel for errors and fill in 1257 * derived fields according to supplied values. 1258 */ 1259int 1260checklabel(lp) 1261 register struct disklabel *lp; 1262{ 1263 register struct partition *pp; 1264 int i, errors = 0; 1265 char part; 1266 1267 if (lp->d_secsize == 0) { 1268 fprintf(stderr, "sector size 0\n"); 1269 return (1); 1270 } 1271 if (lp->d_nsectors == 0) { 1272 fprintf(stderr, "sectors/track 0\n"); 1273 return (1); 1274 } 1275 if (lp->d_ntracks == 0) { 1276 fprintf(stderr, "tracks/cylinder 0\n"); 1277 return (1); 1278 } 1279 if (lp->d_ncylinders == 0) { 1280 fprintf(stderr, "cylinders/unit 0\n"); 1281 errors++; 1282 } 1283 if (lp->d_rpm == 0) 1284 Warning("revolutions/minute 0"); 1285 if (lp->d_secpercyl == 0) 1286 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 1287 if (lp->d_secperunit == 0) 1288 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 1289 if (lp->d_bbsize == 0) { 1290 fprintf(stderr, "boot block size 0\n"); 1291 errors++; 1292 } else if (lp->d_bbsize % lp->d_secsize) 1293 Warning("boot block size %% sector-size != 0"); 1294 if (lp->d_sbsize == 0) { 1295 fprintf(stderr, "super block size 0\n"); 1296 errors++; 1297 } else if (lp->d_sbsize % lp->d_secsize) 1298 Warning("super block size %% sector-size != 0"); 1299 if (lp->d_npartitions > MAXPARTITIONS) 1300 Warning("number of partitions (%lu) > MAXPARTITIONS (%d)", 1301 (u_long)lp->d_npartitions, MAXPARTITIONS); 1302 for (i = 0; i < lp->d_npartitions; i++) { 1303 part = 'a' + i; 1304 pp = &lp->d_partitions[i]; 1305 if (pp->p_size == 0 && pp->p_offset != 0) 1306 Warning("partition %c: size 0, but offset %lu", 1307 part, (u_long)pp->p_offset); 1308#ifdef notdef 1309 if (pp->p_size % lp->d_secpercyl) 1310 Warning("partition %c: size %% cylinder-size != 0", 1311 part); 1312 if (pp->p_offset % lp->d_secpercyl) 1313 Warning("partition %c: offset %% cylinder-size != 0", 1314 part); 1315#endif 1316 if (pp->p_offset > lp->d_secperunit) { 1317 fprintf(stderr, 1318 "partition %c: offset past end of unit\n", part); 1319 errors++; 1320 } 1321 if (pp->p_offset + pp->p_size > lp->d_secperunit) { 1322 fprintf(stderr, 1323 "partition %c: partition extends past end of unit\n", 1324 part); 1325 errors++; 1326 } 1327 } 1328 for (; i < MAXPARTITIONS; i++) { 1329 part = 'a' + i; 1330 pp = &lp->d_partitions[i]; 1331 if (pp->p_size || pp->p_offset) 1332 Warning("unused partition %c: size %d offset %lu", 1333 'a' + i, pp->p_size, (u_long)pp->p_offset); 1334 } 1335 return (errors); 1336} 1337 1338/* 1339 * When operating on a "virgin" disk, try getting an initial label 1340 * from the associated device driver. This might work for all device 1341 * drivers that are able to fetch some initial device parameters 1342 * without even having access to a (BSD) disklabel, like SCSI disks, 1343 * most IDE drives, or vn devices. 1344 * 1345 * The device name must be given in its "canonical" form. 1346 */ 1347struct disklabel * 1348getvirginlabel(void) 1349{ 1350 static struct disklabel lab; 1351 char namebuf[BBSIZE]; 1352 int f; 1353 1354 if (dkname[0] == '/') { 1355 warnx("\"auto\" requires the usage of a canonical disk name"); 1356 return (NULL); 1357 } 1358 (void)snprintf(namebuf, BBSIZE, "%sr%s", _PATH_DEV, dkname); 1359 if ((f = open(namebuf, O_RDONLY)) == -1) { 1360 warn("cannot open %s", namebuf); 1361 return (NULL); 1362 } 1363 if (ioctl(f, DIOCGDINFO, &lab) < 0) { 1364 warn("ioctl DIOCGDINFO"); 1365 close(f); 1366 return (NULL); 1367 } 1368 close(f); 1369 lab.d_boot0 = NULL; 1370 lab.d_boot1 = NULL; 1371 return (&lab); 1372} 1373 1374/* 1375 * If we are installing a boot program that doesn't fit in d_bbsize 1376 * we need to mark those partitions that the boot overflows into. 1377 * This allows newfs to prevent creation of a filesystem where it might 1378 * clobber bootstrap code. 1379 */ 1380void 1381setbootflag(lp) 1382 register struct disklabel *lp; 1383{ 1384 register struct partition *pp; 1385 int i, errors = 0; 1386 char part; 1387 u_long boffset; 1388 1389 if (bootbuf == 0) 1390 return; 1391 boffset = bootsize / lp->d_secsize; 1392 for (i = 0; i < lp->d_npartitions; i++) { 1393 part = 'a' + i; 1394 pp = &lp->d_partitions[i]; 1395 if (pp->p_size == 0) 1396 continue; 1397 if (boffset <= pp->p_offset) { 1398 if (pp->p_fstype == FS_BOOT) 1399 pp->p_fstype = FS_UNUSED; 1400 } else if (pp->p_fstype != FS_BOOT) { 1401 if (pp->p_fstype != FS_UNUSED) { 1402 fprintf(stderr, 1403 "boot overlaps used partition %c\n", 1404 part); 1405 errors++; 1406 } else { 1407 pp->p_fstype = FS_BOOT; 1408 Warning("boot overlaps partition %c, %s", 1409 part, "marked as FS_BOOT"); 1410 } 1411 } 1412 } 1413 if (errors) 1414 errx(4, "cannot install boot program"); 1415} 1416 1417/*VARARGS1*/ 1418void 1419Warning(char *fmt, ...) 1420{ 1421 va_list ap; 1422 1423 fprintf(stderr, "Warning, "); 1424 va_start(ap, fmt); 1425 vfprintf(stderr, fmt, ap); 1426 fprintf(stderr, "\n"); 1427 va_end(ap); 1428} 1429 1430void 1431usage() 1432{ 1433#if NUMBOOT > 0 1434 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", 1435 "usage: disklabel [-r] disk", 1436 "\t\t(to read label)", 1437 " disklabel -w [-r] disk type [ packid ]", 1438 "\t\t(to write label with existing boot program)", 1439 " disklabel -e [-r] disk", 1440 "\t\t(to edit label)", 1441 " disklabel -R [-r] disk protofile", 1442 "\t\t(to restore label with existing boot program)", 1443#if NUMBOOT > 1 1444 " disklabel -B [ -b boot1 [ -s boot2 ] ] disk [ type ]", 1445 "\t\t(to install boot program with existing label)", 1446 " disklabel -w -B [ -b boot1 [ -s boot2 ] ] disk type [ packid ]", 1447 "\t\t(to write label and boot program)", 1448 " disklabel -R -B [ -b boot1 [ -s boot2 ] ] disk protofile [ type ]", 1449 "\t\t(to restore label and boot program)", 1450#else 1451 " disklabel -B [ -b bootprog ] disk [ type ]", 1452 "\t\t(to install boot program with existing on-disk label)", 1453 " disklabel -w -B [ -b bootprog ] disk type [ packid ]", 1454 "\t\t(to write label and install boot program)", 1455 " disklabel -R -B [ -b bootprog ] disk protofile [ type ]", 1456 "\t\t(to restore label and install boot program)", 1457#endif 1458 " disklabel [-NW] disk", 1459 "\t\t(to write disable/enable label)"); 1460#else 1461 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 1462 "usage: disklabel [-r] disk", "(to read label)", 1463 " disklabel -w [-r] disk type [ packid ]", 1464 "\t\t(to write label)", 1465 " disklabel -e [-r] disk", 1466 "\t\t(to edit label)", 1467 " disklabel -R [-r] disk protofile", 1468 "\t\t(to restore label)", 1469 " disklabel [-NW] disk", 1470 "\t\t(to write disable/enable label)"); 1471#endif 1472 exit(1); 1473} 1474