bsdlabel.c revision 38411
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 1.18 1998/08/17 07:43:54 dfr 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#ifdef tahoe 80#define RAWPARTITION 'a' 81#else 82#define RAWPARTITION 'c' 83#endif 84 85#ifndef BBSIZE 86#define BBSIZE 8192 /* size of boot area, with label */ 87#endif 88 89#ifdef tahoe 90#define NUMBOOT 0 91#else 92#if defined(__alpha__) || defined(hp300) || defined(hp800) 93#define NUMBOOT 1 94#else 95#define NUMBOOT 2 96#endif 97#endif 98 99void makelabel __P((char *, char *, struct disklabel *)); 100int writelabel __P((int, char *, struct disklabel *)); 101void l_perror __P((char *)); 102struct disklabel * readlabel __P((int)); 103struct disklabel * makebootarea __P((char *, struct disklabel *, int)); 104void display __P((FILE *, struct disklabel *)); 105int edit __P((struct disklabel *, int)); 106int editit __P((void)); 107char * skip __P((char *)); 108char * word __P((char *)); 109int getasciilabel __P((FILE *, struct disklabel *)); 110int checklabel __P((struct disklabel *)); 111void setbootflag __P((struct disklabel *)); 112void Warning (char *, ...); 113void usage __P((void)); 114extern u_short dkcksum __P((struct disklabel *)); 115struct disklabel * getvirginlabel __P((void)); 116 117#define DEFEDITOR _PATH_VI 118#define streq(a,b) (strcmp(a,b) == 0) 119 120char *dkname; 121char *specname; 122char tmpfil[] = _PATH_TMP; 123 124char namebuf[BBSIZE], *np = namebuf; 125struct disklabel lab; 126struct disklabel *readlabel(), *makebootarea(); 127char bootarea[BBSIZE]; 128 129#if NUMBOOT > 0 130int installboot; /* non-zero if we should install a boot program */ 131char *bootbuf; /* pointer to buffer with remainder of boot prog */ 132int bootsize; /* size of remaining boot program */ 133char *xxboot; /* primary boot */ 134char *bootxx; /* secondary boot */ 135char boot0[MAXPATHLEN]; 136char boot1[MAXPATHLEN]; 137#endif 138 139enum { 140 UNSPEC, EDIT, NOWRITE, READ, RESTORE, WRITE, WRITEABLE, WRITEBOOT 141} op = UNSPEC; 142 143int rflag; 144 145#ifdef DEBUG 146int debug; 147#define OPTIONS "BNRWb:ders:w" 148#else 149#define OPTIONS "BNRWb:ers:w" 150#endif 151 152int 153main(argc, argv) 154 int argc; 155 char *argv[]; 156{ 157 register struct disklabel *lp; 158 FILE *t; 159 int ch, f, flag, error = 0; 160 char *name = 0; 161 162 while ((ch = getopt(argc, argv, OPTIONS)) != -1) 163 switch (ch) { 164#if NUMBOOT > 0 165 case 'B': 166 ++installboot; 167 break; 168 case 'b': 169 xxboot = optarg; 170 break; 171#if NUMBOOT > 1 172 case 's': 173 bootxx = optarg; 174 break; 175#endif 176#endif 177 case 'N': 178 if (op != UNSPEC) 179 usage(); 180 op = NOWRITE; 181 break; 182 case 'R': 183 if (op != UNSPEC) 184 usage(); 185 op = RESTORE; 186 break; 187 case 'W': 188 if (op != UNSPEC) 189 usage(); 190 op = WRITEABLE; 191 break; 192 case 'e': 193 if (op != UNSPEC) 194 usage(); 195 op = EDIT; 196 break; 197 case 'r': 198 ++rflag; 199 break; 200 case 'w': 201 if (op != UNSPEC) 202 usage(); 203 op = WRITE; 204 break; 205#ifdef DEBUG 206 case 'd': 207 debug++; 208 break; 209#endif 210 case '?': 211 default: 212 usage(); 213 } 214 argc -= optind; 215 argv += optind; 216#if NUMBOOT > 0 217 if (installboot) { 218 rflag++; 219 if (op == UNSPEC) 220 op = WRITEBOOT; 221 } else { 222 if (op == UNSPEC) 223 op = READ; 224 xxboot = bootxx = 0; 225 } 226#else 227 if (op == UNSPEC) 228 op = READ; 229#endif 230 if (argc < 1) 231 usage(); 232 233 dkname = argv[0]; 234 if (dkname[0] != '/') { 235 (void)sprintf(np, "%sr%s%c", _PATH_DEV, dkname, RAWPARTITION); 236 specname = np; 237 np += strlen(specname) + 1; 238 } else 239 specname = dkname; 240 f = open(specname, op == READ ? O_RDONLY : O_RDWR); 241 if (f < 0 && errno == ENOENT && dkname[0] != '/') { 242 (void)sprintf(specname, "%sr%s", _PATH_DEV, dkname); 243 np = namebuf + strlen(specname) + 1; 244 f = open(specname, op == READ ? O_RDONLY : O_RDWR); 245 } 246 if (f < 0) 247 err(4, "%s", specname); 248 249 switch(op) { 250 251 case EDIT: 252 if (argc != 1) 253 usage(); 254 lp = readlabel(f); 255 error = edit(lp, f); 256 break; 257 258 case NOWRITE: 259 flag = 0; 260 if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) 261 err(4, "ioctl DIOCWLABEL"); 262 break; 263 264 case READ: 265 if (argc != 1) 266 usage(); 267 lp = readlabel(f); 268 display(stdout, lp); 269 error = checklabel(lp); 270 break; 271 272 case RESTORE: 273#if NUMBOOT > 0 274 if (installboot && argc == 3) { 275 makelabel(argv[2], 0, &lab); 276 argc--; 277 278 /* 279 * We only called makelabel() for its side effect 280 * of setting the bootstrap file names. Discard 281 * all changes to `lab' so that all values in the 282 * final label come from the ASCII label. 283 */ 284 bzero((char *)&lab, sizeof(lab)); 285 } 286#endif 287 if (argc != 2) 288 usage(); 289 if (!(t = fopen(argv[1], "r"))) 290 err(4, "%s", argv[1]); 291 if (!getasciilabel(t, &lab)) 292 exit(1); 293 lp = makebootarea(bootarea, &lab, f); 294 *lp = lab; 295 error = writelabel(f, bootarea, lp); 296 break; 297 298 case WRITE: 299 if (argc == 3) { 300 name = argv[2]; 301 argc--; 302 } 303 if (argc != 2) 304 usage(); 305 makelabel(argv[1], name, &lab); 306 lp = makebootarea(bootarea, &lab, f); 307 *lp = lab; 308 if (checklabel(lp) == 0) 309 error = writelabel(f, bootarea, lp); 310 break; 311 312 case WRITEABLE: 313 flag = 1; 314 if (ioctl(f, DIOCWLABEL, (char *)&flag) < 0) 315 err(4, "ioctl DIOCWLABEL"); 316 break; 317 318#if NUMBOOT > 0 319 case WRITEBOOT: 320 { 321 struct disklabel tlab; 322 323 lp = readlabel(f); 324 tlab = *lp; 325 if (argc == 2) 326 makelabel(argv[1], 0, &lab); 327 lp = makebootarea(bootarea, &lab, f); 328 *lp = tlab; 329 if (checklabel(lp) == 0) 330 error = writelabel(f, bootarea, lp); 331 break; 332 } 333#endif 334 } 335 exit(error); 336} 337 338/* 339 * Construct a prototype disklabel from /etc/disktab. As a side 340 * effect, set the names of the primary and secondary boot files 341 * if specified. 342 */ 343void 344makelabel(type, name, lp) 345 char *type, *name; 346 register struct disklabel *lp; 347{ 348 register struct disklabel *dp; 349 350 if (strcmp(type, "auto") == 0) 351 dp = getvirginlabel(); 352 else 353 dp = getdiskbyname(type); 354 if (dp == NULL) 355 errx(1, "%s: unknown disk type", type); 356 *lp = *dp; 357#if NUMBOOT > 0 358 /* 359 * Set bootstrap name(s). 360 * 1. If set from command line, use those, 361 * 2. otherwise, check if disktab specifies them (b0 or b1), 362 * 3. otherwise, makebootarea() will choose ones based on the name 363 * of the disk special file. E.g. /dev/ra0 -> raboot, bootra 364 */ 365 if (!xxboot && lp->d_boot0) { 366 if (*lp->d_boot0 != '/') 367 (void)sprintf(boot0, "%s/%s", 368 _PATH_BOOTDIR, lp->d_boot0); 369 else 370 (void)strcpy(boot0, lp->d_boot0); 371 xxboot = boot0; 372 } 373#if NUMBOOT > 1 374 if (!bootxx && lp->d_boot1) { 375 if (*lp->d_boot1 != '/') 376 (void)sprintf(boot1, "%s/%s", 377 _PATH_BOOTDIR, lp->d_boot1); 378 else 379 (void)strcpy(boot1, lp->d_boot1); 380 bootxx = boot1; 381 } 382#endif 383#endif 384 /* d_packname is union d_boot[01], so zero */ 385 bzero(lp->d_packname, sizeof(lp->d_packname)); 386 if (name) 387 (void)strncpy(lp->d_packname, name, sizeof(lp->d_packname)); 388} 389 390int 391writelabel(f, boot, lp) 392 int f; 393 char *boot; 394 register struct disklabel *lp; 395{ 396 int flag; 397#ifdef __alpha__ 398 u_long *p, sum; 399 int i; 400#endif 401#ifdef vax 402 register int i; 403#endif 404 405 setbootflag(lp); 406 lp->d_magic = DISKMAGIC; 407 lp->d_magic2 = DISKMAGIC; 408 lp->d_checksum = 0; 409 lp->d_checksum = dkcksum(lp); 410 if (rflag) { 411 /* 412 * First set the kernel disk label, 413 * then write a label to the raw disk. 414 * If the SDINFO ioctl fails because it is unimplemented, 415 * keep going; otherwise, the kernel consistency checks 416 * may prevent us from changing the current (in-core) 417 * label. 418 */ 419 if (ioctl(f, DIOCSDINFO, lp) < 0 && 420 errno != ENODEV && errno != ENOTTY) { 421 l_perror("ioctl DIOCSDINFO"); 422 return (1); 423 } 424 (void)lseek(f, (off_t)0, SEEK_SET); 425 426#ifdef __alpha__ 427 /* 428 * Generate the bootblock checksum for the SRM console. 429 */ 430 for (p = (u_long *)boot, i = 0, sum = 0; i < 63; i++) 431 sum += p[i]; 432 p[63] = sum; 433#endif 434 435 /* 436 * write enable label sector before write (if necessary), 437 * disable after writing. 438 */ 439 flag = 1; 440 if (ioctl(f, DIOCWLABEL, &flag) < 0) 441 warn("ioctl DIOCWLABEL"); 442 if (write(f, boot, lp->d_bbsize) != lp->d_bbsize) { 443 warn("write"); 444 return (1); 445 } 446#if NUMBOOT > 0 447 /* 448 * Output the remainder of the disklabel 449 */ 450 if (bootbuf && write(f, bootbuf, bootsize) != bootsize) { 451 warn("write"); 452 return(1); 453 } 454#endif 455 flag = 0; 456 (void) ioctl(f, DIOCWLABEL, &flag); 457 } else if (ioctl(f, DIOCWDINFO, lp) < 0) { 458 l_perror("ioctl DIOCWDINFO"); 459 return (1); 460 } 461#ifdef vax 462 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 463 daddr_t alt; 464 465 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 466 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 467 (void)lseek(f, (off_t)((alt + i) * lp->d_secsize), 468 SEEK_SET); 469 if (write(f, boot, lp->d_secsize) < lp->d_secsize) 470 warn("alternate label %d write", i/2); 471 } 472 } 473#endif 474 return (0); 475} 476 477void 478l_perror(s) 479 char *s; 480{ 481 switch (errno) { 482 483 case ESRCH: 484 warnx("%s: no disk label on disk;", s); 485 fprintf(stderr, 486 "use \"disklabel -r\" to install initial label\n"); 487 break; 488 489 case EINVAL: 490 warnx("%s: label magic number or checksum is wrong!", s); 491 fprintf(stderr, "(disklabel or kernel is out of date?)\n"); 492 break; 493 494 case EBUSY: 495 warnx("%s: open partition would move or shrink", s); 496 break; 497 498 case EXDEV: 499 warnx( 500 "%s: labeled partition or 'a' partition must start at beginning of disk", s); 501 break; 502 503 default: 504 warn((char *)NULL); 505 break; 506 } 507} 508 509/* 510 * Fetch disklabel for disk. 511 * Use ioctl to get label unless -r flag is given. 512 */ 513struct disklabel * 514readlabel(f) 515 int f; 516{ 517 register struct disklabel *lp; 518 519 if (rflag) { 520 if (read(f, bootarea, BBSIZE) < BBSIZE) 521 err(4, "%s", specname); 522 for (lp = (struct disklabel *)bootarea; 523 lp <= (struct disklabel *)(bootarea + BBSIZE - sizeof(*lp)); 524 lp = (struct disklabel *)((char *)lp + 16)) 525 if (lp->d_magic == DISKMAGIC && 526 lp->d_magic2 == DISKMAGIC) 527 break; 528 if (lp > (struct disklabel *)(bootarea+BBSIZE-sizeof(*lp)) || 529 lp->d_magic != DISKMAGIC || lp->d_magic2 != DISKMAGIC || 530 dkcksum(lp) != 0) 531 errx(1, 532 "bad pack magic number (label is damaged, or pack is unlabeled)"); 533 } else { 534 lp = &lab; 535 if (ioctl(f, DIOCGDINFO, lp) < 0) 536 err(4, "ioctl DIOCGDINFO"); 537 } 538 return (lp); 539} 540 541/* 542 * Construct a bootarea (d_bbsize bytes) in the specified buffer ``boot'' 543 * Returns a pointer to the disklabel portion of the bootarea. 544 */ 545struct disklabel * 546makebootarea(boot, dp, f) 547 char *boot; 548 register struct disklabel *dp; 549 int f; 550{ 551 struct disklabel *lp; 552 register char *p; 553 int b; 554#if NUMBOOT > 0 555 char *dkbasename; 556 struct stat sb; 557#endif 558#ifdef __alpha__ 559 u_long *lp; 560 int n; 561#endif 562#ifdef __i386__ 563 char *tmpbuf; 564 int i, found; 565#endif 566 567 /* XXX */ 568 if (dp->d_secsize == 0) { 569 dp->d_secsize = DEV_BSIZE; 570 dp->d_bbsize = BBSIZE; 571 } 572 lp = (struct disklabel *) 573 (boot + (LABELSECTOR * dp->d_secsize) + LABELOFFSET); 574 bzero((char *)lp, sizeof *lp); 575#if NUMBOOT > 0 576 /* 577 * If we are not installing a boot program but we are installing a 578 * label on disk then we must read the current bootarea so we don't 579 * clobber the existing boot. 580 */ 581 if (!installboot) { 582 if (rflag) { 583 if (read(f, boot, BBSIZE) < BBSIZE) 584 err(4, "%s", specname); 585 bzero((char *)lp, sizeof *lp); 586 } 587 return (lp); 588 } 589 /* 590 * We are installing a boot program. Determine the name(s) and 591 * read them into the appropriate places in the boot area. 592 */ 593 if (!xxboot || !bootxx) { 594 dkbasename = np; 595 if ((p = rindex(dkname, '/')) == NULL) 596 p = dkname; 597 else 598 p++; 599 while (*p && !isdigit(*p)) 600 *np++ = *p++; 601 *np++ = '\0'; 602 603 if (!xxboot) { 604 (void)sprintf(np, "%s/%sboot", 605 _PATH_BOOTDIR, dkbasename); 606 if (access(np, F_OK) < 0 && dkbasename[0] == 'r') 607 dkbasename++; 608 xxboot = np; 609 (void)sprintf(xxboot, "%s/%sboot", 610 _PATH_BOOTDIR, dkbasename); 611 np += strlen(xxboot) + 1; 612 } 613#if NUMBOOT > 1 614 if (!bootxx) { 615 (void)sprintf(np, "%s/boot%s", 616 _PATH_BOOTDIR, dkbasename); 617 if (access(np, F_OK) < 0 && dkbasename[0] == 'r') 618 dkbasename++; 619 bootxx = np; 620 (void)sprintf(bootxx, "%s/boot%s", 621 _PATH_BOOTDIR, dkbasename); 622 np += strlen(bootxx) + 1; 623 } 624#endif 625 } 626#ifdef DEBUG 627 if (debug) 628 fprintf(stderr, "bootstraps: xxboot = %s, bootxx = %s\n", 629 xxboot, bootxx ? bootxx : "NONE"); 630#endif 631 632 /* 633 * Strange rules: 634 * 1. One-piece bootstrap (hp300/hp800) 635 * up to d_bbsize bytes of ``xxboot'' go in bootarea, the rest 636 * is remembered and written later following the bootarea. 637 * 2. Two-piece bootstraps (vax/i386?/mips?) 638 * up to d_secsize bytes of ``xxboot'' go in first d_secsize 639 * bytes of bootarea, remaining d_bbsize-d_secsize filled 640 * from ``bootxx''. 641 */ 642 b = open(xxboot, O_RDONLY); 643 if (b < 0) 644 err(4, "%s", xxboot); 645#if NUMBOOT > 1 646#ifdef __i386__ 647 /* 648 * XXX Botch alert. 649 * The i386 has the so-called fdisk table embedded into the 650 * primary bootstrap. We take care to not clobber it, but 651 * only if it does already contain some data. (Otherwise, 652 * the xxboot provides a template.) 653 */ 654 if ((tmpbuf = (char *)malloc((int)dp->d_secsize)) == 0) 655 err(4, "%s", xxboot); 656 memcpy((void *)tmpbuf, (void *)boot, (int)dp->d_secsize); 657#endif /* i386 */ 658 if (read(b, boot, (int)dp->d_secsize) < 0) 659 err(4, "%s", xxboot); 660 (void)close(b); 661#ifdef __i386__ 662 for (i = DOSPARTOFF, found = 0; 663 !found && i < DOSPARTOFF + NDOSPART*sizeof(struct dos_partition); 664 i++) 665 found = tmpbuf[i] != 0; 666 if (found) 667 memcpy((void *)&boot[DOSPARTOFF], 668 (void *)&tmpbuf[DOSPARTOFF], 669 NDOSPART * sizeof(struct dos_partition)); 670 free(tmpbuf); 671#endif /* i386 */ 672 b = open(bootxx, O_RDONLY); 673 if (b < 0) 674 err(4, "%s", bootxx); 675 if (fstat(b, &sb) != 0) 676 err(4, "%s", bootxx); 677 if (dp->d_secsize + sb.st_size > dp->d_bbsize) 678 errx(4, "%s too large", bootxx); 679 if (read(b, &boot[dp->d_secsize], 680 (int)(dp->d_bbsize-dp->d_secsize)) < 0) 681 err(4, "%s", bootxx); 682#else /* !(NUMBOOT > 1) */ 683#ifdef __alpha__ 684 /* 685 * On the alpha, the primary bootstrap starts at the 686 * second sector of the boot area. The first sector 687 * contains the label and must be edited to contain the 688 * size and location of the primary bootstrap. 689 */ 690 n = read(b, boot + dp->d_secsize, (int)dp->d_bbsize); 691 if (n < 0) 692 err(4, "%s", xxboot); 693 lp = (u_long *) (boot + 480); 694 lp[0] = (n + dp->d_secsize - 1) / dp->d_secsize; 695 lp[1] = 1; /* start at sector 1 */ 696 lp[2] = 0; /* flags (must be zero) */ 697#else /* !__alpha__ */ 698 if (read(b, boot, (int)dp->d_bbsize) < 0) 699 err(4, "%s", xxboot); 700#endif /* __alpha__ */ 701 if (fstat(b, &sb) != 0) 702 err(4, "%s", xxboot); 703 bootsize = (int)sb.st_size - dp->d_bbsize; 704 if (bootsize > 0) { 705 /* XXX assume d_secsize is a power of two */ 706 bootsize = (bootsize + dp->d_secsize-1) & ~(dp->d_secsize-1); 707 bootbuf = (char *)malloc((size_t)bootsize); 708 if (bootbuf == 0) 709 err(4, "%s", xxboot); 710 if (read(b, bootbuf, bootsize) < 0) { 711 free(bootbuf); 712 err(4, "%s", xxboot); 713 } 714 } 715#endif /* NUMBOOT > 1 */ 716 (void)close(b); 717#endif /* NUMBOOT > 0 */ 718 /* 719 * Make sure no part of the bootstrap is written in the area 720 * reserved for the label. 721 */ 722 for (p = (char *)lp; p < (char *)lp + sizeof(struct disklabel); p++) 723 if (*p) 724 errx(2, "bootstrap doesn't leave room for disk label"); 725 return (lp); 726} 727 728void 729display(f, lp) 730 FILE *f; 731 register struct disklabel *lp; 732{ 733 register int i, j; 734 register struct partition *pp; 735 736 fprintf(f, "# %s:\n", specname); 737 if ((unsigned) lp->d_type < DKMAXTYPES) 738 fprintf(f, "type: %s\n", dktypenames[lp->d_type]); 739 else 740 fprintf(f, "type: %u\n", lp->d_type); 741 fprintf(f, "disk: %.*s\n", (int)sizeof(lp->d_typename), 742 lp->d_typename); 743 fprintf(f, "label: %.*s\n", (int)sizeof(lp->d_packname), 744 lp->d_packname); 745 fprintf(f, "flags:"); 746 if (lp->d_flags & D_REMOVABLE) 747 fprintf(f, " removeable"); 748 if (lp->d_flags & D_ECC) 749 fprintf(f, " ecc"); 750 if (lp->d_flags & D_BADSECT) 751 fprintf(f, " badsect"); 752 fprintf(f, "\n"); 753 fprintf(f, "bytes/sector: %lu\n", (u_long)lp->d_secsize); 754 fprintf(f, "sectors/track: %lu\n", (u_long)lp->d_nsectors); 755 fprintf(f, "tracks/cylinder: %lu\n", (u_long)lp->d_ntracks); 756 fprintf(f, "sectors/cylinder: %lu\n", (u_long)lp->d_secpercyl); 757 fprintf(f, "cylinders: %lu\n", (u_long)lp->d_ncylinders); 758 fprintf(f, "sectors/unit: %lu\n", (u_long)lp->d_secperunit); 759 fprintf(f, "rpm: %u\n", lp->d_rpm); 760 fprintf(f, "interleave: %u\n", lp->d_interleave); 761 fprintf(f, "trackskew: %u\n", lp->d_trackskew); 762 fprintf(f, "cylinderskew: %u\n", lp->d_cylskew); 763 fprintf(f, "headswitch: %lu\t\t# milliseconds\n", 764 (u_long)lp->d_headswitch); 765 fprintf(f, "track-to-track seek: %ld\t# milliseconds\n", 766 (u_long)lp->d_trkseek); 767 fprintf(f, "drivedata: "); 768 for (i = NDDATA - 1; i >= 0; i--) 769 if (lp->d_drivedata[i]) 770 break; 771 if (i < 0) 772 i = 0; 773 for (j = 0; j <= i; j++) 774 fprintf(f, "%lu ", (u_long)lp->d_drivedata[j]); 775 fprintf(f, "\n\n%u partitions:\n", lp->d_npartitions); 776 fprintf(f, 777 "# size offset fstype [fsize bsize bps/cpg]\n"); 778 pp = lp->d_partitions; 779 for (i = 0; i < lp->d_npartitions; i++, pp++) { 780 if (pp->p_size) { 781 fprintf(f, " %c: %8lu %8lu ", 'a' + i, 782 (u_long)pp->p_size, (u_long)pp->p_offset); 783 if ((unsigned) pp->p_fstype < FSMAXTYPES) 784 fprintf(f, "%8.8s", fstypenames[pp->p_fstype]); 785 else 786 fprintf(f, "%8d", pp->p_fstype); 787 switch (pp->p_fstype) { 788 789 case FS_UNUSED: /* XXX */ 790 fprintf(f, " %5lu %5lu %5.5s ", 791 (u_long)pp->p_fsize, 792 (u_long)(pp->p_fsize * pp->p_frag), ""); 793 break; 794 795 case FS_BSDFFS: 796 fprintf(f, " %5lu %5lu %5u ", 797 (u_long)pp->p_fsize, 798 (u_long)(pp->p_fsize * pp->p_frag), 799 pp->p_cpg); 800 break; 801 802 case FS_BSDLFS: 803 fprintf(f, " %5lu %5lu %5d", 804 (u_long)pp->p_fsize, 805 (u_long)(pp->p_fsize * pp->p_frag), 806 pp->p_cpg); 807 break; 808 809 default: 810 fprintf(f, "%20.20s", ""); 811 break; 812 } 813 fprintf(f, "\t# (Cyl. %4lu", 814 (u_long)(pp->p_offset / lp->d_secpercyl)); 815 if (pp->p_offset % lp->d_secpercyl) 816 putc('*', f); 817 else 818 putc(' ', f); 819 fprintf(f, "- %lu", 820 (u_long)((pp->p_offset + pp->p_size + 821 lp->d_secpercyl - 1) / 822 lp->d_secpercyl - 1)); 823 if (pp->p_size % lp->d_secpercyl) 824 putc('*', f); 825 fprintf(f, ")\n"); 826 } 827 } 828 fflush(f); 829} 830 831int 832edit(lp, f) 833 struct disklabel *lp; 834 int f; 835{ 836 register int c, fd; 837 struct disklabel label; 838 FILE *fp; 839 840 if ((fd = mkstemp(tmpfil)) == -1 || 841 (fp = fdopen(fd, "w")) == NULL) { 842 warnx("can't create %s", tmpfil); 843 return (1); 844 } 845 display(fp, lp); 846 fclose(fp); 847 for (;;) { 848 if (!editit()) 849 break; 850 fp = fopen(tmpfil, "r"); 851 if (fp == NULL) { 852 warnx("can't reopen %s for reading", tmpfil); 853 break; 854 } 855 bzero((char *)&label, sizeof(label)); 856 if (getasciilabel(fp, &label)) { 857 *lp = label; 858 if (writelabel(f, bootarea, lp) == 0) { 859 fclose(fp); 860 (void) unlink(tmpfil); 861 return (0); 862 } 863 } 864 fclose(fp); 865 printf("re-edit the label? [y]: "); fflush(stdout); 866 c = getchar(); 867 if (c != EOF && c != (int)'\n') 868 while (getchar() != (int)'\n') 869 ; 870 if (c == (int)'n') 871 break; 872 } 873 (void) unlink(tmpfil); 874 return (1); 875} 876 877int 878editit() 879{ 880 register int pid, xpid; 881 int stat, omask; 882 extern char *getenv(); 883 884 omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); 885 while ((pid = fork()) < 0) { 886 extern int errno; 887 888 if (errno == EPROCLIM) { 889 warnx("you have too many processes"); 890 return(0); 891 } 892 if (errno != EAGAIN) { 893 warn("fork"); 894 return(0); 895 } 896 sleep(1); 897 } 898 if (pid == 0) { 899 register char *ed; 900 901 sigsetmask(omask); 902 setgid(getgid()); 903 setuid(getuid()); 904 if ((ed = getenv("EDITOR")) == (char *)0) 905 ed = DEFEDITOR; 906 execlp(ed, ed, tmpfil, 0); 907 err(1, "%s", ed); 908 } 909 while ((xpid = wait(&stat)) >= 0) 910 if (xpid == pid) 911 break; 912 sigsetmask(omask); 913 return(!stat); 914} 915 916char * 917skip(cp) 918 register char *cp; 919{ 920 921 while (*cp != '\0' && isspace(*cp)) 922 cp++; 923 if (*cp == '\0' || *cp == '#') 924 return ((char *)NULL); 925 return (cp); 926} 927 928char * 929word(cp) 930 register char *cp; 931{ 932 register char c; 933 934 while (*cp != '\0' && !isspace(*cp) && *cp != '#') 935 cp++; 936 if ((c = *cp) != '\0') { 937 *cp++ = '\0'; 938 if (c != '#') 939 return (skip(cp)); 940 } 941 return ((char *)NULL); 942} 943 944/* 945 * Read an ascii label in from fd f, 946 * in the same format as that put out by display(), 947 * and fill in lp. 948 */ 949int 950getasciilabel(f, lp) 951 FILE *f; 952 register struct disklabel *lp; 953{ 954 register char **cpp, *cp; 955 register struct partition *pp; 956 char *tp, *s, line[BUFSIZ]; 957 int v, lineno = 0, errors = 0; 958 959 lp->d_bbsize = BBSIZE; /* XXX */ 960 lp->d_sbsize = SBSIZE; /* XXX */ 961 while (fgets(line, sizeof(line) - 1, f)) { 962 lineno++; 963 if ((cp = index(line,'\n')) != 0) 964 *cp = '\0'; 965 cp = skip(line); 966 if (cp == NULL) 967 continue; 968 tp = index(cp, ':'); 969 if (tp == NULL) { 970 fprintf(stderr, "line %d: syntax error\n", lineno); 971 errors++; 972 continue; 973 } 974 *tp++ = '\0', tp = skip(tp); 975 if (streq(cp, "type")) { 976 if (tp == NULL) 977 tp = "unknown"; 978 cpp = dktypenames; 979 for (; cpp < &dktypenames[DKMAXTYPES]; cpp++) 980 if ((s = *cpp) && streq(s, tp)) { 981 lp->d_type = cpp - dktypenames; 982 goto next; 983 } 984 v = atoi(tp); 985 if ((unsigned)v >= DKMAXTYPES) 986 fprintf(stderr, "line %d:%s %d\n", lineno, 987 "Warning, unknown disk type", v); 988 lp->d_type = v; 989 continue; 990 } 991 if (streq(cp, "flags")) { 992 for (v = 0; (cp = tp) && *cp != '\0';) { 993 tp = word(cp); 994 if (streq(cp, "removeable")) 995 v |= D_REMOVABLE; 996 else if (streq(cp, "ecc")) 997 v |= D_ECC; 998 else if (streq(cp, "badsect")) 999 v |= D_BADSECT; 1000 else { 1001 fprintf(stderr, 1002 "line %d: %s: bad flag\n", 1003 lineno, cp); 1004 errors++; 1005 } 1006 } 1007 lp->d_flags = v; 1008 continue; 1009 } 1010 if (streq(cp, "drivedata")) { 1011 register int i; 1012 1013 for (i = 0; (cp = tp) && *cp != '\0' && i < NDDATA;) { 1014 lp->d_drivedata[i++] = atoi(cp); 1015 tp = word(cp); 1016 } 1017 continue; 1018 } 1019 if (sscanf(cp, "%d partitions", &v) == 1) { 1020 if (v == 0 || (unsigned)v > MAXPARTITIONS) { 1021 fprintf(stderr, 1022 "line %d: bad # of partitions\n", lineno); 1023 lp->d_npartitions = MAXPARTITIONS; 1024 errors++; 1025 } else 1026 lp->d_npartitions = v; 1027 continue; 1028 } 1029 if (tp == NULL) 1030 tp = ""; 1031 if (streq(cp, "disk")) { 1032 strncpy(lp->d_typename, tp, sizeof (lp->d_typename)); 1033 continue; 1034 } 1035 if (streq(cp, "label")) { 1036 strncpy(lp->d_packname, tp, sizeof (lp->d_packname)); 1037 continue; 1038 } 1039 if (streq(cp, "bytes/sector")) { 1040 v = atoi(tp); 1041 if (v <= 0 || (v % DEV_BSIZE) != 0) { 1042 fprintf(stderr, 1043 "line %d: %s: bad sector size\n", 1044 lineno, tp); 1045 errors++; 1046 } else 1047 lp->d_secsize = v; 1048 continue; 1049 } 1050 if (streq(cp, "sectors/track")) { 1051 v = atoi(tp); 1052 if (v <= 0) { 1053 fprintf(stderr, "line %d: %s: bad %s\n", 1054 lineno, tp, cp); 1055 errors++; 1056 } else 1057 lp->d_nsectors = v; 1058 continue; 1059 } 1060 if (streq(cp, "sectors/cylinder")) { 1061 v = atoi(tp); 1062 if (v <= 0) { 1063 fprintf(stderr, "line %d: %s: bad %s\n", 1064 lineno, tp, cp); 1065 errors++; 1066 } else 1067 lp->d_secpercyl = v; 1068 continue; 1069 } 1070 if (streq(cp, "tracks/cylinder")) { 1071 v = atoi(tp); 1072 if (v <= 0) { 1073 fprintf(stderr, "line %d: %s: bad %s\n", 1074 lineno, tp, cp); 1075 errors++; 1076 } else 1077 lp->d_ntracks = v; 1078 continue; 1079 } 1080 if (streq(cp, "cylinders")) { 1081 v = atoi(tp); 1082 if (v <= 0) { 1083 fprintf(stderr, "line %d: %s: bad %s\n", 1084 lineno, tp, cp); 1085 errors++; 1086 } else 1087 lp->d_ncylinders = v; 1088 continue; 1089 } 1090 if (streq(cp, "sectors/unit")) { 1091 v = atoi(tp); 1092 if (v <= 0) { 1093 fprintf(stderr, "line %d: %s: bad %s\n", 1094 lineno, tp, cp); 1095 errors++; 1096 } else 1097 lp->d_secperunit = v; 1098 continue; 1099 } 1100 if (streq(cp, "rpm")) { 1101 v = atoi(tp); 1102 if (v <= 0) { 1103 fprintf(stderr, "line %d: %s: bad %s\n", 1104 lineno, tp, cp); 1105 errors++; 1106 } else 1107 lp->d_rpm = v; 1108 continue; 1109 } 1110 if (streq(cp, "interleave")) { 1111 v = atoi(tp); 1112 if (v <= 0) { 1113 fprintf(stderr, "line %d: %s: bad %s\n", 1114 lineno, tp, cp); 1115 errors++; 1116 } else 1117 lp->d_interleave = v; 1118 continue; 1119 } 1120 if (streq(cp, "trackskew")) { 1121 v = atoi(tp); 1122 if (v < 0) { 1123 fprintf(stderr, "line %d: %s: bad %s\n", 1124 lineno, tp, cp); 1125 errors++; 1126 } else 1127 lp->d_trackskew = v; 1128 continue; 1129 } 1130 if (streq(cp, "cylinderskew")) { 1131 v = atoi(tp); 1132 if (v < 0) { 1133 fprintf(stderr, "line %d: %s: bad %s\n", 1134 lineno, tp, cp); 1135 errors++; 1136 } else 1137 lp->d_cylskew = v; 1138 continue; 1139 } 1140 if (streq(cp, "headswitch")) { 1141 v = atoi(tp); 1142 if (v < 0) { 1143 fprintf(stderr, "line %d: %s: bad %s\n", 1144 lineno, tp, cp); 1145 errors++; 1146 } else 1147 lp->d_headswitch = v; 1148 continue; 1149 } 1150 if (streq(cp, "track-to-track seek")) { 1151 v = atoi(tp); 1152 if (v < 0) { 1153 fprintf(stderr, "line %d: %s: bad %s\n", 1154 lineno, tp, cp); 1155 errors++; 1156 } else 1157 lp->d_trkseek = v; 1158 continue; 1159 } 1160 if ('a' <= *cp && *cp <= 'z' && cp[1] == '\0') { 1161 unsigned part = *cp - 'a'; 1162 1163 if (part > lp->d_npartitions) { 1164 fprintf(stderr, 1165 "line %d: bad partition name\n", lineno); 1166 errors++; 1167 continue; 1168 } 1169 pp = &lp->d_partitions[part]; 1170#define NXTNUM(n) { \ 1171 if (tp == NULL) { \ 1172 fprintf(stderr, "line %d: too few numeric fields\n", lineno); \ 1173 errors++; \ 1174 break; \ 1175 } else { \ 1176 cp = tp, tp = word(cp); \ 1177 if (tp == NULL) \ 1178 tp = cp; \ 1179 (n) = atoi(cp); \ 1180 } \ 1181 } 1182 1183 NXTNUM(v); 1184 if (v < 0) { 1185 fprintf(stderr, 1186 "line %d: %s: bad partition size\n", 1187 lineno, cp); 1188 errors++; 1189 } else 1190 pp->p_size = v; 1191 NXTNUM(v); 1192 if (v < 0) { 1193 fprintf(stderr, 1194 "line %d: %s: bad partition offset\n", 1195 lineno, cp); 1196 errors++; 1197 } else 1198 pp->p_offset = v; 1199 cp = tp, tp = word(cp); 1200 cpp = fstypenames; 1201 for (; cpp < &fstypenames[FSMAXTYPES]; cpp++) 1202 if ((s = *cpp) && streq(s, cp)) { 1203 pp->p_fstype = cpp - fstypenames; 1204 goto gottype; 1205 } 1206 if (isdigit(*cp)) 1207 v = atoi(cp); 1208 else 1209 v = FSMAXTYPES; 1210 if ((unsigned)v >= FSMAXTYPES) { 1211 fprintf(stderr, "line %d: %s %s\n", lineno, 1212 "Warning, unknown filesystem type", cp); 1213 v = FS_UNUSED; 1214 } 1215 pp->p_fstype = v; 1216 gottype: 1217 1218 switch (pp->p_fstype) { 1219 1220 case FS_UNUSED: /* XXX */ 1221 NXTNUM(pp->p_fsize); 1222 if (pp->p_fsize == 0) 1223 break; 1224 NXTNUM(v); 1225 pp->p_frag = v / pp->p_fsize; 1226 break; 1227 1228 case FS_BSDFFS: 1229 NXTNUM(pp->p_fsize); 1230 if (pp->p_fsize == 0) 1231 break; 1232 NXTNUM(v); 1233 pp->p_frag = v / pp->p_fsize; 1234 NXTNUM(pp->p_cpg); 1235 break; 1236 1237 case FS_BSDLFS: 1238 NXTNUM(pp->p_fsize); 1239 if (pp->p_fsize == 0) 1240 break; 1241 NXTNUM(v); 1242 pp->p_frag = v / pp->p_fsize; 1243 NXTNUM(pp->p_cpg); 1244 break; 1245 1246 default: 1247 break; 1248 } 1249 continue; 1250 } 1251 fprintf(stderr, "line %d: %s: Unknown disklabel field\n", 1252 lineno, cp); 1253 errors++; 1254 next: 1255 ; 1256 } 1257 errors += checklabel(lp); 1258 return (errors == 0); 1259} 1260 1261/* 1262 * Check disklabel for errors and fill in 1263 * derived fields according to supplied values. 1264 */ 1265int 1266checklabel(lp) 1267 register struct disklabel *lp; 1268{ 1269 register struct partition *pp; 1270 int i, errors = 0; 1271 char part; 1272 1273 if (lp->d_secsize == 0) { 1274 fprintf(stderr, "sector size 0\n"); 1275 return (1); 1276 } 1277 if (lp->d_nsectors == 0) { 1278 fprintf(stderr, "sectors/track 0\n"); 1279 return (1); 1280 } 1281 if (lp->d_ntracks == 0) { 1282 fprintf(stderr, "tracks/cylinder 0\n"); 1283 return (1); 1284 } 1285 if (lp->d_ncylinders == 0) { 1286 fprintf(stderr, "cylinders/unit 0\n"); 1287 errors++; 1288 } 1289 if (lp->d_rpm == 0) 1290 Warning("revolutions/minute 0"); 1291 if (lp->d_secpercyl == 0) 1292 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 1293 if (lp->d_secperunit == 0) 1294 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 1295 if (lp->d_bbsize == 0) { 1296 fprintf(stderr, "boot block size 0\n"); 1297 errors++; 1298 } else if (lp->d_bbsize % lp->d_secsize) 1299 Warning("boot block size %% sector-size != 0"); 1300 if (lp->d_sbsize == 0) { 1301 fprintf(stderr, "super block size 0\n"); 1302 errors++; 1303 } else if (lp->d_sbsize % lp->d_secsize) 1304 Warning("super block size %% sector-size != 0"); 1305 if (lp->d_npartitions > MAXPARTITIONS) 1306 Warning("number of partitions (%lu) > MAXPARTITIONS (%d)", 1307 (u_long)lp->d_npartitions, MAXPARTITIONS); 1308 for (i = 0; i < lp->d_npartitions; i++) { 1309 part = 'a' + i; 1310 pp = &lp->d_partitions[i]; 1311 if (pp->p_size == 0 && pp->p_offset != 0) 1312 Warning("partition %c: size 0, but offset %lu", 1313 part, (u_long)pp->p_offset); 1314#ifdef notdef 1315 if (pp->p_size % lp->d_secpercyl) 1316 Warning("partition %c: size %% cylinder-size != 0", 1317 part); 1318 if (pp->p_offset % lp->d_secpercyl) 1319 Warning("partition %c: offset %% cylinder-size != 0", 1320 part); 1321#endif 1322 if (pp->p_offset > lp->d_secperunit) { 1323 fprintf(stderr, 1324 "partition %c: offset past end of unit\n", part); 1325 errors++; 1326 } 1327 if (pp->p_offset + pp->p_size > lp->d_secperunit) { 1328 fprintf(stderr, 1329 "partition %c: partition extends past end of unit\n", 1330 part); 1331 errors++; 1332 } 1333 } 1334 for (; i < MAXPARTITIONS; i++) { 1335 part = 'a' + i; 1336 pp = &lp->d_partitions[i]; 1337 if (pp->p_size || pp->p_offset) 1338 Warning("unused partition %c: size %d offset %lu", 1339 'a' + i, pp->p_size, (u_long)pp->p_offset); 1340 } 1341 return (errors); 1342} 1343 1344/* 1345 * When operating on a "virgin" disk, try getting an initial label 1346 * from the associated device driver. This might work for all device 1347 * drivers that are able to fetch some initial device parameters 1348 * without even having access to a (BSD) disklabel, like SCSI disks, 1349 * most IDE drives, or vn devices. 1350 * 1351 * The device name must be given in its "canonical" form. 1352 */ 1353struct disklabel * 1354getvirginlabel(void) 1355{ 1356 static struct disklabel lab; 1357 char namebuf[BBSIZE]; 1358 int f; 1359 1360 if (dkname[0] == '/') { 1361 warnx("\"auto\" requires the usage of a canonical disk name"); 1362 return (NULL); 1363 } 1364 (void)snprintf(namebuf, BBSIZE, "%sr%s", _PATH_DEV, dkname); 1365 if ((f = open(namebuf, O_RDONLY)) == -1) { 1366 warn("cannot open %s", namebuf); 1367 return (NULL); 1368 } 1369 if (ioctl(f, DIOCGDINFO, &lab) < 0) { 1370 warn("ioctl DIOCGDINFO"); 1371 close(f); 1372 return (NULL); 1373 } 1374 close(f); 1375 lab.d_boot0 = NULL; 1376 lab.d_boot1 = NULL; 1377 return (&lab); 1378} 1379 1380/* 1381 * If we are installing a boot program that doesn't fit in d_bbsize 1382 * we need to mark those partitions that the boot overflows into. 1383 * This allows newfs to prevent creation of a filesystem where it might 1384 * clobber bootstrap code. 1385 */ 1386void 1387setbootflag(lp) 1388 register struct disklabel *lp; 1389{ 1390 register struct partition *pp; 1391 int i, errors = 0; 1392 char part; 1393 u_long boffset; 1394 1395 if (bootbuf == 0) 1396 return; 1397 boffset = bootsize / lp->d_secsize; 1398 for (i = 0; i < lp->d_npartitions; i++) { 1399 part = 'a' + i; 1400 pp = &lp->d_partitions[i]; 1401 if (pp->p_size == 0) 1402 continue; 1403 if (boffset <= pp->p_offset) { 1404 if (pp->p_fstype == FS_BOOT) 1405 pp->p_fstype = FS_UNUSED; 1406 } else if (pp->p_fstype != FS_BOOT) { 1407 if (pp->p_fstype != FS_UNUSED) { 1408 fprintf(stderr, 1409 "boot overlaps used partition %c\n", 1410 part); 1411 errors++; 1412 } else { 1413 pp->p_fstype = FS_BOOT; 1414 Warning("boot overlaps partition %c, %s", 1415 part, "marked as FS_BOOT"); 1416 } 1417 } 1418 } 1419 if (errors) 1420 errx(4, "cannot install boot program"); 1421} 1422 1423/*VARARGS1*/ 1424void 1425Warning(char *fmt, ...) 1426{ 1427 va_list ap; 1428 1429 fprintf(stderr, "Warning, "); 1430 va_start(ap, fmt); 1431 vfprintf(stderr, fmt, ap); 1432 fprintf(stderr, "\n"); 1433 va_end(ap); 1434} 1435 1436void 1437usage() 1438{ 1439#if NUMBOOT > 0 1440 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", 1441 "usage: disklabel [-r] disk", 1442 "\t\t(to read label)", 1443 " disklabel -w [-r] disk type [ packid ]", 1444 "\t\t(to write label with existing boot program)", 1445 " disklabel -e [-r] disk", 1446 "\t\t(to edit label)", 1447 " disklabel -R [-r] disk protofile", 1448 "\t\t(to restore label with existing boot program)", 1449#if NUMBOOT > 1 1450 " disklabel -B [ -b boot1 [ -s boot2 ] ] disk [ type ]", 1451 "\t\t(to install boot program with existing label)", 1452 " disklabel -w -B [ -b boot1 [ -s boot2 ] ] disk type [ packid ]", 1453 "\t\t(to write label and boot program)", 1454 " disklabel -R -B [ -b boot1 [ -s boot2 ] ] disk protofile [ type ]", 1455 "\t\t(to restore label and boot program)", 1456#else 1457 " disklabel -B [ -b bootprog ] disk [ type ]", 1458 "\t\t(to install boot program with existing on-disk label)", 1459 " disklabel -w -B [ -b bootprog ] disk type [ packid ]", 1460 "\t\t(to write label and install boot program)", 1461 " disklabel -R -B [ -b bootprog ] disk protofile [ type ]", 1462 "\t\t(to restore label and install boot program)", 1463#endif 1464 " disklabel [-NW] disk", 1465 "\t\t(to write disable/enable label)"); 1466#else 1467 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", 1468 "usage: disklabel [-r] disk", "(to read label)", 1469 " disklabel -w [-r] disk type [ packid ]", 1470 "\t\t(to write label)", 1471 " disklabel -e [-r] disk", 1472 "\t\t(to edit label)", 1473 " disklabel -R [-r] disk protofile", 1474 "\t\t(to restore label)", 1475 " disklabel [-NW] disk", 1476 "\t\t(to write disable/enable label)"); 1477#endif 1478 exit(1); 1479} 1480