newfs.c revision 1.22
1 /* $NetBSD: newfs.c,v 1.22 1996/10/23 22:46:17 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)newfs.c 8.8 (Berkeley) 4/18/94"; 45 #else 46 static char rcsid[] = "$NetBSD: newfs.c,v 1.22 1996/10/23 22:46:17 cgd Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * newfs: friendly front end to mkfs 52 */ 53 #include <sys/param.h> 54 #include <sys/stat.h> 55 #include <sys/ioctl.h> 56 #include <sys/disklabel.h> 57 #include <sys/file.h> 58 #include <sys/mount.h> 59 #include <sys/sysctl.h> 60 61 #include <ufs/ufs/dir.h> 62 #include <ufs/ffs/fs.h> 63 64 #include <ctype.h> 65 #include <errno.h> 66 #include <paths.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <syslog.h> 71 #include <unistd.h> 72 #include <util.h> 73 74 #if __STDC__ 75 #include <stdarg.h> 76 #else 77 #include <varargs.h> 78 #endif 79 80 #include "mntopts.h" 81 82 struct mntopt mopts[] = { 83 MOPT_STDOPTS, 84 MOPT_ASYNC, 85 MOPT_UPDATE, 86 { NULL }, 87 }; 88 89 #if __STDC__ 90 void fatal(const char *fmt, ...); 91 #else 92 void fatal(); 93 #endif 94 95 #define COMPAT /* allow non-labeled disks */ 96 97 /* 98 * The following two constants set the default block and fragment sizes. 99 * Both constants must be a power of 2 and meet the following constraints: 100 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 101 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 102 * DESBLKSIZE / DESFRAGSIZE <= 8 103 */ 104 #define DFL_FRAGSIZE 1024 105 #define DFL_BLKSIZE 8192 106 107 /* 108 * Cylinder groups may have up to many cylinders. The actual 109 * number used depends upon how much information can be stored 110 * on a single cylinder. The default is to use 16 cylinders 111 * per group. 112 */ 113 #define DESCPG 16 /* desired fs_cpg */ 114 115 /* 116 * ROTDELAY gives the minimum number of milliseconds to initiate 117 * another disk transfer on the same cylinder. It is used in 118 * determining the rotationally optimal layout for disk blocks 119 * within a file; the default of fs_rotdelay is 0ms. 120 */ 121 #define ROTDELAY 0 122 123 /* 124 * MAXBLKPG determines the maximum number of data blocks which are 125 * placed in a single cylinder group. The default is one indirect 126 * block worth of data blocks. 127 */ 128 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 129 130 /* 131 * Each file system has a number of inodes statically allocated. 132 * We allocate one inode slot per NFPI fragments, expecting this 133 * to be far more than we will ever need. 134 */ 135 #define NFPI 4 136 137 /* 138 * For each cylinder we keep track of the availability of blocks at different 139 * rotational positions, so that we can lay out the data to be picked 140 * up with minimum rotational latency. NRPOS is the default number of 141 * rotational positions that we distinguish. With NRPOS of 8 the resolution 142 * of our summary information is 2ms for a typical 3600 rpm drive. Caching 143 * and zoning pretty much defeats rotational optimization, so we now use a 144 * default of 1. 145 */ 146 #define NRPOS 1 /* number distinct rotational positions */ 147 148 149 int mfs; /* run as the memory based filesystem */ 150 int Nflag; /* run without writing file system */ 151 int Oflag; /* format as an 4.3BSD file system */ 152 int fssize; /* file system size */ 153 int ntracks; /* # tracks/cylinder */ 154 int nsectors; /* # sectors/track */ 155 int nphyssectors; /* # sectors/track including spares */ 156 int secpercyl; /* sectors per cylinder */ 157 int trackspares = -1; /* spare sectors per track */ 158 int cylspares = -1; /* spare sectors per cylinder */ 159 int sectorsize; /* bytes/sector */ 160 int rpm; /* revolutions/minute of drive */ 161 int interleave; /* hardware sector interleave */ 162 int trackskew = -1; /* sector 0 skew, per track */ 163 int headswitch; /* head switch time, usec */ 164 int trackseek; /* track-to-track seek, usec */ 165 int fsize = 0; /* fragment size */ 166 int bsize = 0; /* block size */ 167 int cpg = DESCPG; /* cylinders/cylinder group */ 168 int cpgflg; /* cylinders/cylinder group flag was given */ 169 int minfree = MINFREE; /* free space threshold */ 170 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 171 int density; /* number of bytes per inode */ 172 int maxcontig = 8; /* max contiguous blocks to allocate */ 173 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 174 int maxbpg; /* maximum blocks per file in a cyl group */ 175 int nrpos = NRPOS; /* # of distinguished rotational positions */ 176 int bbsize = BBSIZE; /* boot block size */ 177 int sbsize = SBSIZE; /* superblock size */ 178 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 179 u_long memleft; /* virtual memory available */ 180 caddr_t membase; /* start address of memory based filesystem */ 181 #ifdef COMPAT 182 char *disktype; 183 int unlabeled; 184 #endif 185 186 char device[MAXPATHLEN]; 187 char *progname; 188 189 int 190 main(argc, argv) 191 int argc; 192 char *argv[]; 193 { 194 extern char *optarg; 195 extern int optind; 196 register int ch; 197 register struct partition *pp; 198 register struct disklabel *lp; 199 struct disklabel mfsfakelabel; 200 struct disklabel *getdisklabel(); 201 struct partition oldpartition; 202 struct stat st; 203 struct statfs *mp; 204 int fsi, fso, len, n, maxpartitions; 205 char *cp, *s1, *s2, *special, *opstring, buf[BUFSIZ]; 206 207 if (progname = strrchr(*argv, '/')) 208 ++progname; 209 else 210 progname = *argv; 211 212 if (strstr(progname, "mfs")) { 213 mfs = 1; 214 Nflag++; 215 } 216 217 maxpartitions = getmaxpartitions(); 218 if (maxpartitions > 26) 219 fatal("insane maxpartitions value %d", maxpartitions); 220 221 opstring = mfs ? 222 "NT:a:b:c:d:e:f:i:m:o:s:" : 223 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; 224 while ((ch = getopt(argc, argv, opstring)) != EOF) 225 switch (ch) { 226 case 'N': 227 Nflag = 1; 228 break; 229 case 'O': 230 Oflag = 1; 231 break; 232 case 'S': 233 if ((sectorsize = atoi(optarg)) <= 0) 234 fatal("%s: bad sector size", optarg); 235 break; 236 #ifdef COMPAT 237 case 'T': 238 disktype = optarg; 239 break; 240 #endif 241 case 'a': 242 if ((maxcontig = atoi(optarg)) <= 0) 243 fatal("%s: bad maximum contiguous blocks\n", 244 optarg); 245 break; 246 case 'b': 247 if ((bsize = atoi(optarg)) < MINBSIZE) 248 fatal("%s: bad block size", optarg); 249 break; 250 case 'c': 251 if ((cpg = atoi(optarg)) <= 0) 252 fatal("%s: bad cylinders/group", optarg); 253 cpgflg++; 254 break; 255 case 'd': 256 if ((rotdelay = atoi(optarg)) < 0) 257 fatal("%s: bad rotational delay\n", optarg); 258 break; 259 case 'e': 260 if ((maxbpg = atoi(optarg)) <= 0) 261 fatal("%s: bad blocks per file in a cylinder group\n", 262 optarg); 263 break; 264 case 'f': 265 if ((fsize = atoi(optarg)) <= 0) 266 fatal("%s: bad fragment size", optarg); 267 break; 268 case 'i': 269 if ((density = atoi(optarg)) <= 0) 270 fatal("%s: bad bytes per inode\n", optarg); 271 break; 272 case 'k': 273 if ((trackskew = atoi(optarg)) < 0) 274 fatal("%s: bad track skew", optarg); 275 break; 276 case 'l': 277 if ((interleave = atoi(optarg)) <= 0) 278 fatal("%s: bad interleave", optarg); 279 break; 280 case 'm': 281 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 282 fatal("%s: bad free space %%\n", optarg); 283 break; 284 case 'n': 285 if ((nrpos = atoi(optarg)) <= 0) 286 fatal("%s: bad rotational layout count\n", 287 optarg); 288 break; 289 case 'o': 290 if (mfs) 291 getmntopts(optarg, mopts, &mntflags); 292 else { 293 if (strcmp(optarg, "space") == 0) 294 opt = FS_OPTSPACE; 295 else if (strcmp(optarg, "time") == 0) 296 opt = FS_OPTTIME; 297 else 298 fatal("%s: unknown optimization preference: use `space' or `time'."); 299 } 300 break; 301 case 'p': 302 if ((trackspares = atoi(optarg)) < 0) 303 fatal("%s: bad spare sectors per track", 304 optarg); 305 break; 306 case 'r': 307 if ((rpm = atoi(optarg)) <= 0) 308 fatal("%s: bad revolutions/minute\n", optarg); 309 break; 310 case 's': 311 if ((fssize = atoi(optarg)) <= 0) 312 fatal("%s: bad file system size", optarg); 313 break; 314 case 't': 315 if ((ntracks = atoi(optarg)) <= 0) 316 fatal("%s: bad total tracks", optarg); 317 break; 318 case 'u': 319 if ((nsectors = atoi(optarg)) <= 0) 320 fatal("%s: bad sectors/track", optarg); 321 break; 322 case 'x': 323 if ((cylspares = atoi(optarg)) < 0) 324 fatal("%s: bad spare sectors per cylinder", 325 optarg); 326 break; 327 case '?': 328 default: 329 usage(); 330 } 331 argc -= optind; 332 argv += optind; 333 334 if (argc != 2 && (mfs || argc != 1)) 335 usage(); 336 337 special = argv[0]; 338 if (mfs && !strcmp(special, "swap")) { 339 /* 340 * it's an MFS, mounted on "swap." fake up a label. 341 * XXX XXX XXX 342 */ 343 fso = -1; /* XXX; normally done below. */ 344 345 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 346 mfsfakelabel.d_secsize = 512; 347 mfsfakelabel.d_nsectors = 64; 348 mfsfakelabel.d_ntracks = 16; 349 mfsfakelabel.d_ncylinders = 16; 350 mfsfakelabel.d_secpercyl = 1024; 351 mfsfakelabel.d_secperunit = 16384; 352 mfsfakelabel.d_rpm = 3600; 353 mfsfakelabel.d_interleave = 1; 354 mfsfakelabel.d_npartitions = 1; 355 mfsfakelabel.d_partitions[0].p_size = 16384; 356 mfsfakelabel.d_partitions[0].p_fsize = 1024; 357 mfsfakelabel.d_partitions[0].p_frag = 8; 358 mfsfakelabel.d_partitions[0].p_cpg = 16; 359 360 lp = &mfsfakelabel; 361 pp = &mfsfakelabel.d_partitions[0]; 362 363 goto havelabel; 364 } 365 cp = strrchr(special, '/'); 366 if (cp == 0) { 367 /* 368 * No path prefix; try /dev/r%s then /dev/%s. 369 */ 370 (void)sprintf(device, "%sr%s", _PATH_DEV, special); 371 if (stat(device, &st) == -1) 372 (void)sprintf(device, "%s%s", _PATH_DEV, special); 373 special = device; 374 } 375 if (Nflag) { 376 fso = -1; 377 } else { 378 fso = open(special, O_WRONLY); 379 if (fso < 0) 380 fatal("%s: %s", special, strerror(errno)); 381 382 /* Bail if target special is mounted */ 383 n = getmntinfo(&mp, MNT_NOWAIT); 384 if (n == 0) 385 fatal("%s: getmntinfo: %s", special, strerror(errno)); 386 387 len = sizeof(_PATH_DEV) - 1; 388 s1 = special; 389 if (strncmp(_PATH_DEV, s1, len) == 0) 390 s1 += len; 391 392 while (--n >= 0) { 393 s2 = mp->f_mntfromname; 394 if (strncmp(_PATH_DEV, s2, len) == 0) { 395 s2 += len - 1; 396 *s2 = 'r'; 397 } 398 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 399 fatal("%s is mounted on %s", 400 special, mp->f_mntonname); 401 ++mp; 402 } 403 } 404 if (mfs && disktype != NULL) { 405 lp = (struct disklabel *)getdiskbyname(disktype); 406 if (lp == NULL) 407 fatal("%s: unknown disk type", disktype); 408 pp = &lp->d_partitions[1]; 409 } else { 410 fsi = open(special, O_RDONLY); 411 if (fsi < 0) 412 fatal("%s: %s", special, strerror(errno)); 413 if (fstat(fsi, &st) < 0) 414 fatal("%s: %s", special, strerror(errno)); 415 if (!S_ISCHR(st.st_mode) && !mfs) 416 printf("%s: %s: not a character-special device\n", 417 progname, special); 418 cp = strchr(argv[0], '\0') - 1; 419 if (cp == 0 || (*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 420 && !isdigit(*cp)) 421 fatal("%s: can't figure out file system partition", 422 argv[0]); 423 #ifdef COMPAT 424 if (!mfs && disktype == NULL) 425 disktype = argv[1]; 426 #endif 427 lp = getdisklabel(special, fsi); 428 if (isdigit(*cp)) 429 pp = &lp->d_partitions[0]; 430 else 431 pp = &lp->d_partitions[*cp - 'a']; 432 if (pp->p_size == 0) 433 fatal("%s: `%c' partition is unavailable", 434 argv[0], *cp); 435 if (pp->p_fstype == FS_BOOT) 436 fatal("%s: `%c' partition overlaps boot program", 437 argv[0], *cp); 438 } 439 havelabel: 440 if (fssize == 0) 441 fssize = pp->p_size; 442 if (fssize > pp->p_size && !mfs) 443 fatal("%s: maximum file system size on the `%c' partition is %d", 444 argv[0], *cp, pp->p_size); 445 if (rpm == 0) { 446 rpm = lp->d_rpm; 447 if (rpm <= 0) 448 rpm = 3600; 449 } 450 if (ntracks == 0) { 451 ntracks = lp->d_ntracks; 452 if (ntracks <= 0) 453 fatal("%s: no default #tracks", argv[0]); 454 } 455 if (nsectors == 0) { 456 nsectors = lp->d_nsectors; 457 if (nsectors <= 0) 458 fatal("%s: no default #sectors/track", argv[0]); 459 } 460 if (sectorsize == 0) { 461 sectorsize = lp->d_secsize; 462 if (sectorsize <= 0) 463 fatal("%s: no default sector size", argv[0]); 464 } 465 if (trackskew == -1) { 466 trackskew = lp->d_trackskew; 467 if (trackskew < 0) 468 trackskew = 0; 469 } 470 if (interleave == 0) { 471 interleave = lp->d_interleave; 472 if (interleave <= 0) 473 interleave = 1; 474 } 475 if (fsize == 0) { 476 fsize = pp->p_fsize; 477 if (fsize <= 0) 478 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 479 } 480 if (bsize == 0) { 481 bsize = pp->p_frag * pp->p_fsize; 482 if (bsize <= 0) 483 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 484 } 485 /* 486 * Maxcontig sets the default for the maximum number of blocks 487 * that may be allocated sequentially. With filesystem clustering 488 * it is possible to allocate contiguous blocks up to the maximum 489 * transfer size permitted by the controller or buffering. 490 */ 491 if (maxcontig == 0) 492 maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize - 1); 493 if (density == 0) 494 density = NFPI * fsize; 495 if (minfree < MINFREE && opt != FS_OPTSPACE) { 496 fprintf(stderr, "Warning: changing optimization to space "); 497 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 498 opt = FS_OPTSPACE; 499 } 500 if (trackspares == -1) { 501 trackspares = lp->d_sparespertrack; 502 if (trackspares < 0) 503 trackspares = 0; 504 } 505 nphyssectors = nsectors + trackspares; 506 if (cylspares == -1) { 507 cylspares = lp->d_sparespercyl; 508 if (cylspares < 0) 509 cylspares = 0; 510 } 511 secpercyl = nsectors * ntracks - cylspares; 512 if (secpercyl != lp->d_secpercyl) 513 fprintf(stderr, "%s (%d) %s (%lu)\n", 514 "Warning: calculated sectors per cylinder", secpercyl, 515 "disagrees with disk label", lp->d_secpercyl); 516 if (maxbpg == 0) 517 maxbpg = MAXBLKPG(bsize); 518 headswitch = lp->d_headswitch; 519 trackseek = lp->d_trkseek; 520 #ifdef notdef /* label may be 0 if faked up by kernel */ 521 bbsize = lp->d_bbsize; 522 sbsize = lp->d_sbsize; 523 #endif 524 oldpartition = *pp; 525 mkfs(pp, special, fsi, fso); 526 if (!Nflag && memcmp(pp, &oldpartition, sizeof(oldpartition))) 527 rewritelabel(special, fso, lp); 528 if (!Nflag) 529 close(fso); 530 close(fsi); 531 #ifdef MFS 532 if (mfs) { 533 struct mfs_args args; 534 535 sprintf(buf, "mfs:%d", getpid()); 536 args.fspec = buf; 537 args.export.ex_root = -2; 538 if (mntflags & MNT_RDONLY) 539 args.export.ex_flags = MNT_EXRDONLY; 540 else 541 args.export.ex_flags = 0; 542 args.base = membase; 543 args.size = fssize * sectorsize; 544 if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) 545 fatal("%s: %s", argv[1], strerror(errno)); 546 } 547 #endif 548 exit(0); 549 } 550 551 #ifdef COMPAT 552 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 553 #else 554 char lmsg[] = "%s: can't read disk label"; 555 #endif 556 557 struct disklabel * 558 getdisklabel(s, fd) 559 char *s; 560 int fd; 561 { 562 static struct disklabel lab; 563 564 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 565 #ifdef COMPAT 566 if (disktype) { 567 struct disklabel *lp, *getdiskbyname(); 568 569 unlabeled++; 570 lp = getdiskbyname(disktype); 571 if (lp == NULL) 572 fatal("%s: unknown disk type", disktype); 573 return (lp); 574 } 575 #endif 576 warn("ioctl (GDINFO)"); 577 fatal(lmsg, s); 578 } 579 return (&lab); 580 } 581 582 rewritelabel(s, fd, lp) 583 char *s; 584 int fd; 585 register struct disklabel *lp; 586 { 587 #ifdef COMPAT 588 if (unlabeled) 589 return; 590 #endif 591 lp->d_checksum = 0; 592 lp->d_checksum = dkcksum(lp); 593 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 594 warn("ioctl (WDINFO)"); 595 fatal("%s: can't rewrite disk label", s); 596 } 597 #if vax 598 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 599 register i; 600 int cfd; 601 daddr_t alt; 602 char specname[64]; 603 char blk[1024]; 604 char *cp; 605 606 /* 607 * Make name for 'c' partition. 608 */ 609 strcpy(specname, s); 610 cp = specname + strlen(specname) - 1; 611 if (!isdigit(*cp)) 612 *cp = 'c'; 613 cfd = open(specname, O_WRONLY); 614 if (cfd < 0) 615 fatal("%s: %s", specname, strerror(errno)); 616 memset(blk, 0, sizeof(blk)); 617 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 618 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 619 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 620 off_t offset; 621 622 offset = alt + i; 623 offset *= lp->d_secsize; 624 if (lseek(cfd, offset, SEEK_SET) == -1) 625 fatal("lseek to badsector area: %s", 626 strerror(errno)); 627 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 628 warn("alternate label %d write", i/2); 629 } 630 close(cfd); 631 } 632 #endif 633 } 634 635 /*VARARGS*/ 636 void 637 #if __STDC__ 638 fatal(const char *fmt, ...) 639 #else 640 fatal(fmt, va_alist) 641 char *fmt; 642 va_dcl 643 #endif 644 { 645 va_list ap; 646 647 #if __STDC__ 648 va_start(ap, fmt); 649 #else 650 va_start(ap); 651 #endif 652 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 653 openlog(progname, LOG_CONS, LOG_DAEMON); 654 vsyslog(LOG_ERR, fmt, ap); 655 closelog(); 656 } else { 657 vwarnx(fmt, ap); 658 } 659 va_end(ap); 660 exit(1); 661 /*NOTREACHED*/ 662 } 663 664 usage() 665 { 666 if (mfs) { 667 fprintf(stderr, 668 "usage: %s [ -fsoptions ] special-device mount-point\n", 669 progname); 670 } else 671 fprintf(stderr, 672 "usage: %s [ -fsoptions ] special-device%s\n", 673 progname, 674 #ifdef COMPAT 675 " [device-type]"); 676 #else 677 ""); 678 #endif 679 fprintf(stderr, "where fsoptions are:\n"); 680 fprintf(stderr, 681 "\t-N do not create file system, just print out parameters\n"); 682 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 683 fprintf(stderr, "\t-S sector size\n"); 684 #ifdef COMPAT 685 fprintf(stderr, "\t-T disktype\n"); 686 #endif 687 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 688 fprintf(stderr, "\t-b block size\n"); 689 fprintf(stderr, "\t-c cylinders/group\n"); 690 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 691 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 692 fprintf(stderr, "\t-f frag size\n"); 693 fprintf(stderr, "\t-i number of bytes per inode\n"); 694 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 695 fprintf(stderr, "\t-l hardware sector interleave\n"); 696 fprintf(stderr, "\t-m minimum free space %%\n"); 697 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 698 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 699 fprintf(stderr, "\t-p spare sectors per track\n"); 700 fprintf(stderr, "\t-s file system size (sectors)\n"); 701 fprintf(stderr, "\t-r revolutions/minute\n"); 702 fprintf(stderr, "\t-t tracks/cylinder\n"); 703 fprintf(stderr, "\t-u sectors/track\n"); 704 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 705 exit(1); 706 } 707
Indexes created Fri Sep 26 20:09:58 GMT 2025