newfs.c revision 1.20
1 /* $NetBSD: newfs.c,v 1.20 1996/05/16 07:13:03 thorpej 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 1.20 1996/05/16 07:13:03 thorpej 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 { NULL }, 86 }; 87 88 #if __STDC__ 89 void fatal(const char *fmt, ...); 90 #else 91 void fatal(); 92 #endif 93 94 #define COMPAT /* allow non-labeled disks */ 95 96 /* 97 * The following two constants set the default block and fragment sizes. 98 * Both constants must be a power of 2 and meet the following constraints: 99 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 100 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 101 * DESBLKSIZE / DESFRAGSIZE <= 8 102 */ 103 #define DFL_FRAGSIZE 1024 104 #define DFL_BLKSIZE 8192 105 106 /* 107 * Cylinder groups may have up to many cylinders. The actual 108 * number used depends upon how much information can be stored 109 * on a single cylinder. The default is to use 16 cylinders 110 * per group. 111 */ 112 #define DESCPG 16 /* desired fs_cpg */ 113 114 /* 115 * ROTDELAY gives the minimum number of milliseconds to initiate 116 * another disk transfer on the same cylinder. It is used in 117 * determining the rotationally optimal layout for disk blocks 118 * within a file; the default of fs_rotdelay is 0ms. 119 */ 120 #define ROTDELAY 0 121 122 /* 123 * MAXBLKPG determines the maximum number of data blocks which are 124 * placed in a single cylinder group. The default is one indirect 125 * block worth of data blocks. 126 */ 127 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 128 129 /* 130 * Each file system has a number of inodes statically allocated. 131 * We allocate one inode slot per NFPI fragments, expecting this 132 * to be far more than we will ever need. 133 */ 134 #define NFPI 4 135 136 /* 137 * For each cylinder we keep track of the availability of blocks at different 138 * rotational positions, so that we can lay out the data to be picked 139 * up with minimum rotational latency. NRPOS is the default number of 140 * rotational positions that we distinguish. With NRPOS of 8 the resolution 141 * of our summary information is 2ms for a typical 3600 rpm drive. Caching 142 * and zoning pretty much defeats rotational optimization, so we now use a 143 * default of 1. 144 */ 145 #define NRPOS 1 /* number distinct rotational positions */ 146 147 148 int mfs; /* run as the memory based filesystem */ 149 int Nflag; /* run without writing file system */ 150 int Oflag; /* format as an 4.3BSD file system */ 151 int fssize; /* file system size */ 152 int ntracks; /* # tracks/cylinder */ 153 int nsectors; /* # sectors/track */ 154 int nphyssectors; /* # sectors/track including spares */ 155 int secpercyl; /* sectors per cylinder */ 156 int trackspares = -1; /* spare sectors per track */ 157 int cylspares = -1; /* spare sectors per cylinder */ 158 int sectorsize; /* bytes/sector */ 159 #ifdef tahoe 160 int realsectorsize; /* bytes/sector in hardware */ 161 #endif 162 int rpm; /* revolutions/minute of drive */ 163 int interleave; /* hardware sector interleave */ 164 int trackskew = -1; /* sector 0 skew, per track */ 165 int headswitch; /* head switch time, usec */ 166 int trackseek; /* track-to-track seek, usec */ 167 int fsize = 0; /* fragment size */ 168 int bsize = 0; /* block size */ 169 int cpg = DESCPG; /* cylinders/cylinder group */ 170 int cpgflg; /* cylinders/cylinder group flag was given */ 171 int minfree = MINFREE; /* free space threshold */ 172 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 173 int density; /* number of bytes per inode */ 174 int maxcontig = 8; /* max contiguous blocks to allocate */ 175 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 176 int maxbpg; /* maximum blocks per file in a cyl group */ 177 int nrpos = NRPOS; /* # of distinguished rotational positions */ 178 int bbsize = BBSIZE; /* boot block size */ 179 int sbsize = SBSIZE; /* superblock size */ 180 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 181 u_long memleft; /* virtual memory available */ 182 caddr_t membase; /* start address of memory based filesystem */ 183 #ifdef COMPAT 184 char *disktype; 185 int unlabeled; 186 #endif 187 188 char device[MAXPATHLEN]; 189 char *progname; 190 191 int 192 main(argc, argv) 193 int argc; 194 char *argv[]; 195 { 196 extern char *optarg; 197 extern int optind; 198 register int ch; 199 register struct partition *pp; 200 register struct disklabel *lp; 201 struct disklabel mfsfakelabel; 202 struct disklabel *getdisklabel(); 203 struct partition oldpartition; 204 struct stat st; 205 struct statfs *mp; 206 int fsi, fso, len, n, maxpartitions; 207 char *cp, *s1, *s2, *special, *opstring, buf[BUFSIZ]; 208 209 if (progname = strrchr(*argv, '/')) 210 ++progname; 211 else 212 progname = *argv; 213 214 if (strstr(progname, "mfs")) { 215 mfs = 1; 216 Nflag++; 217 } 218 219 maxpartitions = getmaxpartitions(); 220 if (maxpartitions > 26) 221 fatal("insane maxpartitions value %d", maxpartitions); 222 223 opstring = mfs ? 224 "NT:a:b:c:d:e:f:i:m:o:s:" : 225 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; 226 while ((ch = getopt(argc, argv, opstring)) != EOF) 227 switch (ch) { 228 case 'N': 229 Nflag = 1; 230 break; 231 case 'O': 232 Oflag = 1; 233 break; 234 case 'S': 235 if ((sectorsize = atoi(optarg)) <= 0) 236 fatal("%s: bad sector size", optarg); 237 break; 238 #ifdef COMPAT 239 case 'T': 240 disktype = optarg; 241 break; 242 #endif 243 case 'a': 244 if ((maxcontig = atoi(optarg)) <= 0) 245 fatal("%s: bad maximum contiguous blocks\n", 246 optarg); 247 break; 248 case 'b': 249 if ((bsize = atoi(optarg)) < MINBSIZE) 250 fatal("%s: bad block size", optarg); 251 break; 252 case 'c': 253 if ((cpg = atoi(optarg)) <= 0) 254 fatal("%s: bad cylinders/group", optarg); 255 cpgflg++; 256 break; 257 case 'd': 258 if ((rotdelay = atoi(optarg)) < 0) 259 fatal("%s: bad rotational delay\n", optarg); 260 break; 261 case 'e': 262 if ((maxbpg = atoi(optarg)) <= 0) 263 fatal("%s: bad blocks per file in a cylinder group\n", 264 optarg); 265 break; 266 case 'f': 267 if ((fsize = atoi(optarg)) <= 0) 268 fatal("%s: bad fragment size", optarg); 269 break; 270 case 'i': 271 if ((density = atoi(optarg)) <= 0) 272 fatal("%s: bad bytes per inode\n", optarg); 273 break; 274 case 'k': 275 if ((trackskew = atoi(optarg)) < 0) 276 fatal("%s: bad track skew", optarg); 277 break; 278 case 'l': 279 if ((interleave = atoi(optarg)) <= 0) 280 fatal("%s: bad interleave", optarg); 281 break; 282 case 'm': 283 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 284 fatal("%s: bad free space %%\n", optarg); 285 break; 286 case 'n': 287 if ((nrpos = atoi(optarg)) <= 0) 288 fatal("%s: bad rotational layout count\n", 289 optarg); 290 break; 291 case 'o': 292 if (mfs) 293 getmntopts(optarg, mopts, &mntflags); 294 else { 295 if (strcmp(optarg, "space") == 0) 296 opt = FS_OPTSPACE; 297 else if (strcmp(optarg, "time") == 0) 298 opt = FS_OPTTIME; 299 else 300 fatal("%s: unknown optimization preference: use `space' or `time'."); 301 } 302 break; 303 case 'p': 304 if ((trackspares = atoi(optarg)) < 0) 305 fatal("%s: bad spare sectors per track", 306 optarg); 307 break; 308 case 'r': 309 if ((rpm = atoi(optarg)) <= 0) 310 fatal("%s: bad revolutions/minute\n", optarg); 311 break; 312 case 's': 313 if ((fssize = atoi(optarg)) <= 0) 314 fatal("%s: bad file system size", optarg); 315 break; 316 case 't': 317 if ((ntracks = atoi(optarg)) <= 0) 318 fatal("%s: bad total tracks", optarg); 319 break; 320 case 'u': 321 if ((nsectors = atoi(optarg)) <= 0) 322 fatal("%s: bad sectors/track", optarg); 323 break; 324 case 'x': 325 if ((cylspares = atoi(optarg)) < 0) 326 fatal("%s: bad spare sectors per cylinder", 327 optarg); 328 break; 329 case '?': 330 default: 331 usage(); 332 } 333 argc -= optind; 334 argv += optind; 335 336 if (argc != 2 && (mfs || argc != 1)) 337 usage(); 338 339 special = argv[0]; 340 if (mfs && !strcmp(special, "swap")) { 341 /* 342 * it's an MFS, mounted on "swap." fake up a label. 343 * XXX XXX XXX 344 */ 345 fso = -1; /* XXX; normally done below. */ 346 347 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 348 mfsfakelabel.d_secsize = 512; 349 mfsfakelabel.d_nsectors = 64; 350 mfsfakelabel.d_ntracks = 16; 351 mfsfakelabel.d_ncylinders = 16; 352 mfsfakelabel.d_secpercyl = 1024; 353 mfsfakelabel.d_secperunit = 16384; 354 mfsfakelabel.d_rpm = 3600; 355 mfsfakelabel.d_interleave = 1; 356 mfsfakelabel.d_npartitions = 1; 357 mfsfakelabel.d_partitions[0].p_size = 16384; 358 mfsfakelabel.d_partitions[0].p_fsize = 1024; 359 mfsfakelabel.d_partitions[0].p_frag = 8; 360 mfsfakelabel.d_partitions[0].p_cpg = 16; 361 362 lp = &mfsfakelabel; 363 pp = &mfsfakelabel.d_partitions[0]; 364 365 goto havelabel; 366 } 367 cp = strrchr(special, '/'); 368 if (cp == 0) { 369 /* 370 * No path prefix; try /dev/r%s then /dev/%s. 371 */ 372 (void)sprintf(device, "%sr%s", _PATH_DEV, special); 373 if (stat(device, &st) == -1) 374 (void)sprintf(device, "%s%s", _PATH_DEV, special); 375 special = device; 376 } 377 if (Nflag) { 378 fso = -1; 379 } else { 380 fso = open(special, O_WRONLY); 381 if (fso < 0) 382 fatal("%s: %s", special, strerror(errno)); 383 384 /* Bail if target special is mounted */ 385 n = getmntinfo(&mp, MNT_NOWAIT); 386 if (n == 0) 387 fatal("%s: getmntinfo: %s", special, strerror(errno)); 388 389 len = sizeof(_PATH_DEV) - 1; 390 s1 = special; 391 if (strncmp(_PATH_DEV, s1, len) == 0) 392 s1 += len; 393 394 while (--n >= 0) { 395 s2 = mp->f_mntfromname; 396 if (strncmp(_PATH_DEV, s2, len) == 0) { 397 s2 += len - 1; 398 *s2 = 'r'; 399 } 400 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 401 fatal("%s is mounted on %s", 402 special, mp->f_mntonname); 403 ++mp; 404 } 405 } 406 if (mfs && disktype != NULL) { 407 lp = (struct disklabel *)getdiskbyname(disktype); 408 if (lp == NULL) 409 fatal("%s: unknown disk type", disktype); 410 pp = &lp->d_partitions[1]; 411 } else { 412 fsi = open(special, O_RDONLY); 413 if (fsi < 0) 414 fatal("%s: %s", special, strerror(errno)); 415 if (fstat(fsi, &st) < 0) 416 fatal("%s: %s", special, strerror(errno)); 417 if (!S_ISCHR(st.st_mode) && !mfs) 418 printf("%s: %s: not a character-special device\n", 419 progname, special); 420 cp = strchr(argv[0], '\0') - 1; 421 if (cp == 0 || (*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 422 && !isdigit(*cp)) 423 fatal("%s: can't figure out file system partition", 424 argv[0]); 425 #ifdef COMPAT 426 if (!mfs && disktype == NULL) 427 disktype = argv[1]; 428 #endif 429 lp = getdisklabel(special, fsi); 430 if (isdigit(*cp)) 431 pp = &lp->d_partitions[0]; 432 else 433 pp = &lp->d_partitions[*cp - 'a']; 434 if (pp->p_size == 0) 435 fatal("%s: `%c' partition is unavailable", 436 argv[0], *cp); 437 if (pp->p_fstype == FS_BOOT) 438 fatal("%s: `%c' partition overlaps boot program", 439 argv[0], *cp); 440 } 441 havelabel: 442 if (fssize == 0) 443 fssize = pp->p_size; 444 if (fssize > pp->p_size && !mfs) 445 fatal("%s: maximum file system size on the `%c' partition is %d", 446 argv[0], *cp, pp->p_size); 447 if (rpm == 0) { 448 rpm = lp->d_rpm; 449 if (rpm <= 0) 450 rpm = 3600; 451 } 452 if (ntracks == 0) { 453 ntracks = lp->d_ntracks; 454 if (ntracks <= 0) 455 fatal("%s: no default #tracks", argv[0]); 456 } 457 if (nsectors == 0) { 458 nsectors = lp->d_nsectors; 459 if (nsectors <= 0) 460 fatal("%s: no default #sectors/track", argv[0]); 461 } 462 if (sectorsize == 0) { 463 sectorsize = lp->d_secsize; 464 if (sectorsize <= 0) 465 fatal("%s: no default sector size", argv[0]); 466 } 467 if (trackskew == -1) { 468 trackskew = lp->d_trackskew; 469 if (trackskew < 0) 470 trackskew = 0; 471 } 472 if (interleave == 0) { 473 interleave = lp->d_interleave; 474 if (interleave <= 0) 475 interleave = 1; 476 } 477 if (fsize == 0) { 478 fsize = pp->p_fsize; 479 if (fsize <= 0) 480 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 481 } 482 if (bsize == 0) { 483 bsize = pp->p_frag * pp->p_fsize; 484 if (bsize <= 0) 485 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 486 } 487 /* 488 * Maxcontig sets the default for the maximum number of blocks 489 * that may be allocated sequentially. With filesystem clustering 490 * it is possible to allocate contiguous blocks up to the maximum 491 * transfer size permitted by the controller or buffering. 492 */ 493 if (maxcontig == 0) 494 maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize - 1); 495 if (density == 0) 496 density = NFPI * fsize; 497 if (minfree < MINFREE && opt != FS_OPTSPACE) { 498 fprintf(stderr, "Warning: changing optimization to space "); 499 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 500 opt = FS_OPTSPACE; 501 } 502 if (trackspares == -1) { 503 trackspares = lp->d_sparespertrack; 504 if (trackspares < 0) 505 trackspares = 0; 506 } 507 nphyssectors = nsectors + trackspares; 508 if (cylspares == -1) { 509 cylspares = lp->d_sparespercyl; 510 if (cylspares < 0) 511 cylspares = 0; 512 } 513 secpercyl = nsectors * ntracks - cylspares; 514 if (secpercyl != lp->d_secpercyl) 515 fprintf(stderr, "%s (%d) %s (%lu)\n", 516 "Warning: calculated sectors per cylinder", secpercyl, 517 "disagrees with disk label", lp->d_secpercyl); 518 if (maxbpg == 0) 519 maxbpg = MAXBLKPG(bsize); 520 headswitch = lp->d_headswitch; 521 trackseek = lp->d_trkseek; 522 #ifdef notdef /* label may be 0 if faked up by kernel */ 523 bbsize = lp->d_bbsize; 524 sbsize = lp->d_sbsize; 525 #endif 526 oldpartition = *pp; 527 #ifdef tahoe 528 realsectorsize = sectorsize; 529 if (sectorsize != DEV_BSIZE) { /* XXX */ 530 int secperblk = DEV_BSIZE / sectorsize; 531 532 sectorsize = DEV_BSIZE; 533 nsectors /= secperblk; 534 nphyssectors /= secperblk; 535 secpercyl /= secperblk; 536 fssize /= secperblk; 537 pp->p_size /= secperblk; 538 } 539 #endif 540 mkfs(pp, special, fsi, fso); 541 #ifdef tahoe 542 if (realsectorsize != DEV_BSIZE) 543 pp->p_size *= DEV_BSIZE / realsectorsize; 544 #endif 545 if (!Nflag && memcmp(pp, &oldpartition, sizeof(oldpartition))) 546 rewritelabel(special, fso, lp); 547 if (!Nflag) 548 close(fso); 549 close(fsi); 550 #ifdef MFS 551 if (mfs) { 552 struct mfs_args args; 553 554 sprintf(buf, "mfs:%d", getpid()); 555 args.fspec = buf; 556 args.export.ex_root = -2; 557 if (mntflags & MNT_RDONLY) 558 args.export.ex_flags = MNT_EXRDONLY; 559 else 560 args.export.ex_flags = 0; 561 args.base = membase; 562 args.size = fssize * sectorsize; 563 if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) 564 fatal("%s: %s", argv[1], strerror(errno)); 565 } 566 #endif 567 exit(0); 568 } 569 570 #ifdef COMPAT 571 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 572 #else 573 char lmsg[] = "%s: can't read disk label"; 574 #endif 575 576 struct disklabel * 577 getdisklabel(s, fd) 578 char *s; 579 int fd; 580 { 581 static struct disklabel lab; 582 583 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 584 #ifdef COMPAT 585 if (disktype) { 586 struct disklabel *lp, *getdiskbyname(); 587 588 unlabeled++; 589 lp = getdiskbyname(disktype); 590 if (lp == NULL) 591 fatal("%s: unknown disk type", disktype); 592 return (lp); 593 } 594 #endif 595 warn("ioctl (GDINFO)"); 596 fatal(lmsg, s); 597 } 598 return (&lab); 599 } 600 601 rewritelabel(s, fd, lp) 602 char *s; 603 int fd; 604 register struct disklabel *lp; 605 { 606 #ifdef COMPAT 607 if (unlabeled) 608 return; 609 #endif 610 lp->d_checksum = 0; 611 lp->d_checksum = dkcksum(lp); 612 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 613 warn("ioctl (WDINFO)"); 614 fatal("%s: can't rewrite disk label", s); 615 } 616 #if vax 617 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 618 register i; 619 int cfd; 620 daddr_t alt; 621 char specname[64]; 622 char blk[1024]; 623 char *cp; 624 625 /* 626 * Make name for 'c' partition. 627 */ 628 strcpy(specname, s); 629 cp = specname + strlen(specname) - 1; 630 if (!isdigit(*cp)) 631 *cp = 'c'; 632 cfd = open(specname, O_WRONLY); 633 if (cfd < 0) 634 fatal("%s: %s", specname, strerror(errno)); 635 memset(blk, 0, sizeof(blk)); 636 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 637 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 638 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 639 off_t offset; 640 641 offset = alt + i; 642 offset *= lp->d_secsize; 643 if (lseek(cfd, offset, SEEK_SET) == -1) 644 fatal("lseek to badsector area: %s", 645 strerror(errno)); 646 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 647 warn("alternate label %d write", i/2); 648 } 649 close(cfd); 650 } 651 #endif 652 } 653 654 /*VARARGS*/ 655 void 656 #if __STDC__ 657 fatal(const char *fmt, ...) 658 #else 659 fatal(fmt, va_alist) 660 char *fmt; 661 va_dcl 662 #endif 663 { 664 va_list ap; 665 666 #if __STDC__ 667 va_start(ap, fmt); 668 #else 669 va_start(ap); 670 #endif 671 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 672 openlog(progname, LOG_CONS, LOG_DAEMON); 673 vsyslog(LOG_ERR, fmt, ap); 674 closelog(); 675 } else { 676 vwarnx(fmt, ap); 677 } 678 va_end(ap); 679 exit(1); 680 /*NOTREACHED*/ 681 } 682 683 usage() 684 { 685 if (mfs) { 686 fprintf(stderr, 687 "usage: %s [ -fsoptions ] special-device mount-point\n", 688 progname); 689 } else 690 fprintf(stderr, 691 "usage: %s [ -fsoptions ] special-device%s\n", 692 progname, 693 #ifdef COMPAT 694 " [device-type]"); 695 #else 696 ""); 697 #endif 698 fprintf(stderr, "where fsoptions are:\n"); 699 fprintf(stderr, 700 "\t-N do not create file system, just print out parameters\n"); 701 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 702 fprintf(stderr, "\t-S sector size\n"); 703 #ifdef COMPAT 704 fprintf(stderr, "\t-T disktype\n"); 705 #endif 706 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 707 fprintf(stderr, "\t-b block size\n"); 708 fprintf(stderr, "\t-c cylinders/group\n"); 709 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 710 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 711 fprintf(stderr, "\t-f frag size\n"); 712 fprintf(stderr, "\t-i number of bytes per inode\n"); 713 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 714 fprintf(stderr, "\t-l hardware sector interleave\n"); 715 fprintf(stderr, "\t-m minimum free space %%\n"); 716 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 717 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 718 fprintf(stderr, "\t-p spare sectors per track\n"); 719 fprintf(stderr, "\t-s file system size (sectors)\n"); 720 fprintf(stderr, "\t-r revolutions/minute\n"); 721 fprintf(stderr, "\t-t tracks/cylinder\n"); 722 fprintf(stderr, "\t-u sectors/track\n"); 723 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 724 exit(1); 725 } 726
Indexes created Fri Sep 26 08:10:20 GMT 2025