1 /* 2 * Copyright (c) 1983, 1989, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char sccsid[] = "@(#)newfs.c 8.8 (Berkeley) 4/18/94"; 36 #endif /* not lint */ 37 38 #ifndef lint 39 static char copyright[] = 40 "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 41 The Regents of the University of California. All rights reserved.\n"; 42 #endif /* not lint */ 43 44 /* 45 * newfs: friendly front end to mkfs 46 */ 47 #include <sys/param.h> 48 #include <sys/stat.h> 49 #include <sys/ioctl.h> 50 #include <sys/disklabel.h> 51 #include <sys/file.h> 52 #include <sys/mount.h> 53 54 #include <ufs/ufs/dir.h> 55 #include <ufs/ffs/fs.h> 56 57 #include <ctype.h> 58 #include <errno.h> 59 #include <paths.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <syslog.h> 64 #include <unistd.h> 65 66 #if __STDC__ 67 #include <stdarg.h> 68 #else 69 #include <varargs.h> 70 #endif 71 72 #include "mntopts.h" 73 74 struct mntopt mopts[] = { 75 MOPT_STDOPTS, 76 MOPT_ASYNC, 77 { NULL }, 78 }; 79 80 #if __STDC__ 81 void fatal(const char *fmt, ...); 82 #else 83 void fatal(); 84 #endif 85 86 #define COMPAT /* allow non-labeled disks */ 87 88 /* 89 * The following two constants set the default block and fragment sizes. 90 * Both constants must be a power of 2 and meet the following constraints: 91 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 92 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 93 * DESBLKSIZE / DESFRAGSIZE <= 8 94 */ 95 #define DFL_FRAGSIZE 1024 96 #define DFL_BLKSIZE 8192 97 98 /* 99 * Cylinder groups may have up to many cylinders. The actual 100 * number used depends upon how much information can be stored 101 * on a single cylinder. The default is to use 16 cylinders 102 * per group. 103 */ 104 #define DESCPG 16 /* desired fs_cpg */ 105 106 /* 107 * Once upon a time... 108 * ROTDELAY gives the minimum number of milliseconds to initiate 109 * another disk transfer on the same cylinder. It is used in 110 * determining the rotationally optimal layout for disk blocks 111 * within a file; the default of fs_rotdelay is 4ms. 112 * 113 * ...but now we make this 0 to disable the rotdelay delay because 114 * modern drives with read/write-behind achieve higher performance 115 * without the delay. 116 */ 117 #define ROTDELAY 0 118 119 /* 120 * MAXBLKPG determines the maximum number of data blocks which are 121 * placed in a single cylinder group. The default is one indirect 122 * block worth of data blocks. 123 */ 124 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 125 126 /* 127 * Each file system has a number of inodes statically allocated. 128 * We allocate one inode slot per NFPI fragments, expecting this 129 * to be far more than we will ever need. 130 */ 131 #define NFPI 4 132 133 /* 134 * Once upon a time... 135 * For each cylinder we keep track of the availability of blocks at different 136 * rotational positions, so that we can lay out the data to be picked 137 * up with minimum rotational latency. NRPOS is the default number of 138 * rotational positions that we distinguish. With NRPOS of 8 the resolution 139 * of our summary information is 2ms for a typical 3600 rpm drive. 140 * 141 * ...but now we make this 1 (which escentially disables the rotational 142 * position table because modern drives with read-ahead and write-behind do 143 * better without the rotational position table. 144 */ 145 #define NRPOS 1 /* number distinct rotational positions */ 146 147 /* 148 * About the same time as the above, we knew what went where on the disks. 149 * no longer so, so kill the code which finds the different platters too... 150 * We do this by saying one head, with a lot of sectors on it. 151 * The number of sectors are used to determine the size of a cyl-group. 152 * Kirk suggested one or two meg per "cylinder" so we say two. 153 */ 154 155 #define NTRACKS 1 /* number of heads */ 156 157 #define NSECTORS 4096 /* number of sectors */ 158 159 int mfs; /* run as the memory based filesystem */ 160 int Nflag; /* run without writing file system */ 161 int Oflag; /* format as an 4.3BSD file system */ 162 int fssize; /* file system size */ 163 int ntracks = NTRACKS; /* # tracks/cylinder */ 164 int nsectors = NSECTORS; /* # sectors/track */ 165 int nphyssectors; /* # sectors/track including spares */ 166 int secpercyl; /* sectors per cylinder */ 167 int trackspares = -1; /* spare sectors per track */ 168 int cylspares = -1; /* spare sectors per cylinder */ 169 int sectorsize; /* bytes/sector */ 170 #ifdef tahoe 171 int realsectorsize; /* bytes/sector in hardware */ 172 #endif 173 int rpm; /* revolutions/minute of drive */ 174 int interleave; /* hardware sector interleave */ 175 int trackskew = -1; /* sector 0 skew, per track */ 176 int headswitch; /* head switch time, usec */ 177 int trackseek; /* track-to-track seek, usec */ 178 int fsize = 0; /* fragment size */ 179 int bsize = 0; /* block size */ 180 int cpg = DESCPG; /* cylinders/cylinder group */ 181 int cpgflg; /* cylinders/cylinder group flag was given */ 182 int minfree = MINFREE; /* free space threshold */ 183 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 184 int density; /* number of bytes per inode */ 185 int maxcontig = 0; /* max contiguous blocks to allocate */ 186 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 187 int maxbpg; /* maximum blocks per file in a cyl group */ 188 int nrpos = NRPOS; /* # of distinguished rotational positions */ 189 int bbsize = BBSIZE; /* boot block size */ 190 int sbsize = SBSIZE; /* superblock size */ 191 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 192 int t_or_u_flag = 0; /* user has specified -t or -u */ 193 u_long memleft; /* virtual memory available */ 194 caddr_t membase; /* start address of memory based filesystem */ 195 char *filename; 196 #ifdef COMPAT 197 char *disktype; 198 int unlabeled; 199 #endif 200 201 char device[MAXPATHLEN]; 202 char *progname; 203 204 int 205 main(argc, argv) 206 int argc; 207 char *argv[]; 208 { 209 extern char *optarg; 210 extern int optind; 211 register int ch; 212 register struct partition *pp; 213 register struct disklabel *lp; 214 struct disklabel *getdisklabel(); 215 struct partition oldpartition; 216 struct stat st; 217 struct statfs *mp; 218 int fsi, fso, len, n; 219 char *cp, *s1, *s2, *special, *opstring, buf[BUFSIZ]; 220 #ifdef MFS 221 struct vfsconf *vfc; 222 #endif 223 224 if (progname = rindex(*argv, '/')) 225 ++progname; 226 else 227 progname = *argv; 228 229 if (strstr(progname, "mfs")) { 230 mfs = 1; 231 Nflag++; 232 } 233 234 opstring = mfs ? 235 "NF:T:a:b:c:d:e:f:i:m:o:s:" : 236 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; 237 while ((ch = getopt(argc, argv, opstring)) != EOF) 238 switch (ch) { 239 case 'N': 240 Nflag = 1; 241 break; 242 case 'O': 243 Oflag = 1; 244 break; 245 case 'S': 246 if ((sectorsize = atoi(optarg)) <= 0) 247 fatal("%s: bad sector size", optarg); 248 break; 249 #ifdef COMPAT 250 case 'T': 251 disktype = optarg; 252 break; 253 #endif 254 case 'F': 255 filename = optarg; 256 break; 257 case 'a': 258 if ((maxcontig = atoi(optarg)) <= 0) 259 fatal("%s: bad maximum contiguous blocks\n", 260 optarg); 261 break; 262 case 'b': 263 if ((bsize = atoi(optarg)) < MINBSIZE) 264 fatal("%s: bad block size", optarg); 265 break; 266 case 'c': 267 if ((cpg = atoi(optarg)) <= 0) 268 fatal("%s: bad cylinders/group", optarg); 269 cpgflg++; 270 break; 271 case 'd': 272 if ((rotdelay = atoi(optarg)) < 0) 273 fatal("%s: bad rotational delay\n", optarg); 274 break; 275 case 'e': 276 if ((maxbpg = atoi(optarg)) <= 0) 277 fatal("%s: bad blocks per file in a cylinder group\n", 278 optarg); 279 break; 280 case 'f': 281 if ((fsize = atoi(optarg)) <= 0) 282 fatal("%s: bad fragment size", optarg); 283 break; 284 case 'i': 285 if ((density = atoi(optarg)) <= 0) 286 fatal("%s: bad bytes per inode\n", optarg); 287 break; 288 case 'k': 289 if ((trackskew = atoi(optarg)) < 0) 290 fatal("%s: bad track skew", optarg); 291 break; 292 case 'l': 293 if ((interleave = atoi(optarg)) <= 0) 294 fatal("%s: bad interleave", optarg); 295 break; 296 case 'm': 297 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 298 fatal("%s: bad free space %%\n", optarg); 299 break; 300 case 'n': 301 if ((nrpos = atoi(optarg)) < 0) 302 fatal("%s: bad rotational layout count\n", 303 optarg); 304 if (nrpos == 0) 305 nrpos = 1; 306 break; 307 case 'o': 308 if (mfs) 309 getmntopts(optarg, mopts, &mntflags, 0); 310 else { 311 if (strcmp(optarg, "space") == 0) 312 opt = FS_OPTSPACE; 313 else if (strcmp(optarg, "time") == 0) 314 opt = FS_OPTTIME; 315 else 316 fatal("%s: unknown optimization preference: use `space' or `time'."); 317 } 318 break; 319 case 'p': 320 if ((trackspares = atoi(optarg)) < 0) 321 fatal("%s: bad spare sectors per track", 322 optarg); 323 break; 324 case 'r': 325 if ((rpm = atoi(optarg)) <= 0) 326 fatal("%s: bad revolutions/minute\n", optarg); 327 break; 328 case 's': 329 if ((fssize = atoi(optarg)) <= 0) 330 fatal("%s: bad file system size", optarg); 331 break; 332 case 't': 333 t_or_u_flag++; 334 if ((ntracks = atoi(optarg)) < 0) 335 fatal("%s: bad total tracks", optarg); 336 break; 337 case 'u': 338 t_or_u_flag++; 339 if ((nsectors = atoi(optarg)) < 0) 340 fatal("%s: bad sectors/track", optarg); 341 break; 342 case 'x': 343 if ((cylspares = atoi(optarg)) < 0) 344 fatal("%s: bad spare sectors per cylinder", 345 optarg); 346 break; 347 case '?': 348 default: 349 usage(); 350 } 351 argc -= optind; 352 argv += optind; 353 354 if (argc != 2 && (mfs || argc != 1)) 355 usage(); 356 357 special = argv[0]; 358 cp = rindex(special, '/'); 359 if (cp == 0) { 360 /* 361 * No path prefix; try /dev/r%s then /dev/%s. 362 */ 363 (void)sprintf(device, "%sr%s", _PATH_DEV, special); 364 if (stat(device, &st) == -1) 365 (void)sprintf(device, "%s%s", _PATH_DEV, special); 366 special = device; 367 } 368 if (Nflag) { 369 fso = -1; 370 } else { 371 fso = open(special, O_WRONLY); 372 if (fso < 0) 373 fatal("%s: %s", special, strerror(errno)); 374 375 /* Bail if target special is mounted */ 376 n = getmntinfo(&mp, MNT_NOWAIT); 377 if (n == 0) 378 fatal("%s: getmntinfo: %s", special, strerror(errno)); 379 380 len = sizeof(_PATH_DEV) - 1; 381 s1 = special; 382 if (strncmp(_PATH_DEV, s1, len) == 0) 383 s1 += len; 384 385 while (--n >= 0) { 386 s2 = mp->f_mntfromname; 387 if (strncmp(_PATH_DEV, s2, len) == 0) { 388 s2 += len - 1; 389 *s2 = 'r'; 390 } 391 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 392 fatal("%s is mounted on %s", 393 special, mp->f_mntonname); 394 ++mp; 395 } 396 } 397 if (mfs && disktype != NULL) { 398 lp = (struct disklabel *)getdiskbyname(disktype); 399 if (lp == NULL) 400 fatal("%s: unknown disk type", disktype); 401 pp = &lp->d_partitions[1]; 402 } else { 403 fsi = open(special, O_RDONLY); 404 if (fsi < 0) 405 fatal("%s: %s", special, strerror(errno)); 406 if (fstat(fsi, &st) < 0) 407 fatal("%s: %s", special, strerror(errno)); 408 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 409 printf("%s: %s: not a character-special device\n", 410 progname, special); 411 cp = index(argv[0], '\0') - 1; 412 if (cp == 0 || (*cp < 'a' || *cp > 'h') && !isdigit(*cp)) 413 fatal("%s: can't figure out file system partition", 414 argv[0]); 415 #ifdef COMPAT 416 if (!mfs && disktype == NULL) 417 disktype = argv[1]; 418 #endif 419 lp = getdisklabel(special, fsi); 420 if (isdigit(*cp)) 421 pp = &lp->d_partitions[0]; 422 else 423 pp = &lp->d_partitions[*cp - 'a']; 424 if (pp->p_size == 0) 425 fatal("%s: `%c' partition is unavailable", 426 argv[0], *cp); 427 if (pp->p_fstype == FS_BOOT) 428 fatal("%s: `%c' partition overlaps boot program", 429 argv[0], *cp); 430 } 431 if (fssize == 0) 432 fssize = pp->p_size; 433 if (fssize > pp->p_size && !mfs) 434 fatal("%s: maximum file system size on the `%c' partition is %d", 435 argv[0], *cp, pp->p_size); 436 if (rpm == 0) { 437 rpm = lp->d_rpm; 438 if (rpm <= 0) 439 rpm = 3600; 440 } 441 if (ntracks == 0) { 442 ntracks = lp->d_ntracks; 443 if (ntracks <= 0) 444 fatal("%s: no default #tracks", argv[0]); 445 } 446 if (nsectors == 0) { 447 nsectors = lp->d_nsectors; 448 if (nsectors <= 0) 449 fatal("%s: no default #sectors/track", argv[0]); 450 } 451 if (sectorsize == 0) { 452 sectorsize = lp->d_secsize; 453 if (sectorsize <= 0) 454 fatal("%s: no default sector size", argv[0]); 455 } 456 if (trackskew == -1) { 457 trackskew = lp->d_trackskew; 458 if (trackskew < 0) 459 trackskew = 0; 460 } 461 if (interleave == 0) { 462 interleave = lp->d_interleave; 463 if (interleave <= 0) 464 interleave = 1; 465 } 466 if (fsize == 0) { 467 fsize = pp->p_fsize; 468 if (fsize <= 0) 469 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 470 } 471 if (bsize == 0) { 472 bsize = pp->p_frag * pp->p_fsize; 473 if (bsize <= 0) 474 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 475 } 476 /* 477 * Maxcontig sets the default for the maximum number of blocks 478 * that may be allocated sequentially. With filesystem clustering 479 * it is possible to allocate contiguous blocks up to the maximum 480 * transfer size permitted by the controller or buffering. 481 */ 482 if (maxcontig == 0) 483 maxcontig = MAX(1, MAXPHYS / bsize - 1); 484 if (density == 0) 485 density = NFPI * fsize; 486 if (minfree < MINFREE && opt != FS_OPTSPACE) { 487 fprintf(stderr, "Warning: changing optimization to space "); 488 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 489 opt = FS_OPTSPACE; 490 } 491 if (trackspares == -1) { 492 trackspares = lp->d_sparespertrack; 493 if (trackspares < 0) 494 trackspares = 0; 495 } 496 nphyssectors = nsectors + trackspares; 497 if (cylspares == -1) { 498 cylspares = lp->d_sparespercyl; 499 if (cylspares < 0) 500 cylspares = 0; 501 } 502 secpercyl = nsectors * ntracks - cylspares; 503 /* 504 * Only complain if -t or -u have been specified; the default 505 * case (4096 sectors per cylinder) is intented to disagree 506 * with the disklabel. 507 */ 508 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 509 fprintf(stderr, "%s (%d) %s (%lu)\n", 510 "Warning: calculated sectors per cylinder", secpercyl, 511 "disagrees with disk label", lp->d_secpercyl); 512 if (maxbpg == 0) 513 maxbpg = MAXBLKPG(bsize); 514 headswitch = lp->d_headswitch; 515 trackseek = lp->d_trkseek; 516 #ifdef notdef /* label may be 0 if faked up by kernel */ 517 bbsize = lp->d_bbsize; 518 sbsize = lp->d_sbsize; 519 #endif 520 oldpartition = *pp; 521 #ifdef tahoe 522 realsectorsize = sectorsize; 523 if (sectorsize != DEV_BSIZE) { /* XXX */ 524 int secperblk = DEV_BSIZE / sectorsize; 525 526 sectorsize = DEV_BSIZE; 527 nsectors /= secperblk; 528 nphyssectors /= secperblk; 529 secpercyl /= secperblk; 530 fssize /= secperblk; 531 pp->p_size /= secperblk; 532 } 533 #endif 534 mkfs(pp, special, fsi, fso); 535 #ifdef tahoe 536 if (realsectorsize != DEV_BSIZE) 537 pp->p_size *= DEV_BSIZE / realsectorsize; 538 #endif 539 if (!Nflag) 540 close(fso); 541 close(fsi); 542 #ifdef MFS 543 if (mfs) { 544 struct mfs_args args; 545 546 sprintf(buf, "mfs:%d", getpid()); 547 args.fspec = buf; 548 args.export.ex_root = -2; 549 if (mntflags & MNT_RDONLY) 550 args.export.ex_flags = MNT_EXRDONLY; 551 else 552 args.export.ex_flags = 0; 553 args.base = membase; 554 args.size = fssize * sectorsize; 555 556 vfc = getvfsbyname("mfs"); 557 if(!vfc && vfsisloadable("mfs")) { 558 if(vfsload("mfs")) { 559 err(1, "vfsload(mfs)"); 560 } 561 endvfsent(); /* flush cache */ 562 vfc = getvfsbyname("mfs"); 563 } 564 565 if (mount(vfc ? vfc->vfc_index : MOUNT_MFS, argv[1], mntflags, 566 &args) < 0) 567 fatal("%s: %s", argv[1], strerror(errno)); 568 if(filename) { 569 munmap(membase,fssize * sectorsize); 570 } 571 } 572 #endif 573 exit(0); 574 } 575 576 #ifdef COMPAT 577 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 578 #else 579 char lmsg[] = "%s: can't read disk label"; 580 #endif 581 582 struct disklabel * 583 getdisklabel(s, fd) 584 char *s; 585 int fd; 586 { 587 static struct disklabel lab; 588 589 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 590 #ifdef COMPAT 591 if (disktype) { 592 struct disklabel *lp, *getdiskbyname(); 593 594 unlabeled++; 595 lp = getdiskbyname(disktype); 596 if (lp == NULL) 597 fatal("%s: unknown disk type", disktype); 598 return (lp); 599 } 600 #endif 601 warn("ioctl (GDINFO)"); 602 fatal(lmsg, s); 603 } 604 return (&lab); 605 } 606 607 /*VARARGS*/ 608 void 609 #if __STDC__ 610 fatal(const char *fmt, ...) 611 #else 612 fatal(fmt, va_alist) 613 char *fmt; 614 va_dcl 615 #endif 616 { 617 va_list ap; 618 619 #if __STDC__ 620 va_start(ap, fmt); 621 #else 622 va_start(ap); 623 #endif 624 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 625 openlog(progname, LOG_CONS, LOG_DAEMON); 626 vsyslog(LOG_ERR, fmt, ap); 627 closelog(); 628 } else { 629 vwarnx(fmt, ap); 630 } 631 va_end(ap); 632 exit(1); 633 /*NOTREACHED*/ 634 } 635 636 usage() 637 { 638 if (mfs) { 639 fprintf(stderr, 640 "usage: %s [ -fsoptions ] special-device mount-point\n", 641 progname); 642 } else 643 fprintf(stderr, 644 "usage: %s [ -fsoptions ] special-device%s\n", 645 progname, 646 #ifdef COMPAT 647 " [device-type]"); 648 #else 649 ""); 650 #endif 651 fprintf(stderr, "where fsoptions are:\n"); 652 fprintf(stderr, 653 "\t-N do not create file system, just print out parameters\n"); 654 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 655 fprintf(stderr, "\t-S sector size\n"); 656 #ifdef COMPAT 657 fprintf(stderr, "\t-T disktype\n"); 658 #endif 659 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 660 fprintf(stderr, "\t-b block size\n"); 661 fprintf(stderr, "\t-c cylinders/group\n"); 662 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 663 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 664 fprintf(stderr, "\t-f frag size\n"); 665 fprintf(stderr, "\t-i number of bytes per inode\n"); 666 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 667 fprintf(stderr, "\t-l hardware sector interleave\n"); 668 fprintf(stderr, "\t-m minimum free space %%\n"); 669 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 670 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 671 fprintf(stderr, "\t-p spare sectors per track\n"); 672 fprintf(stderr, "\t-s file system size (sectors)\n"); 673 fprintf(stderr, "\t-r revolutions/minute\n"); 674 fprintf(stderr, "\t-t tracks/cylinder\n"); 675 fprintf(stderr, "\t-u sectors/track\n"); 676 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 677 exit(1); 678 } 679