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 * @(#) Copyright (c) 1983, 1989, 1993, 1994 The Regents of the University of California. All rights reserved. 34 * @(#)newfs.c 8.13 (Berkeley) 5/1/95 35 * $FreeBSD: src/sbin/newfs/newfs.c,v 1.30.2.9 2003/05/13 12:03:55 joerg Exp $ 36 * $DragonFly: src/sbin/newfs/newfs.c,v 1.17 2007/06/19 19:18:20 dillon Exp $ 37 */ 38 39 /* 40 * newfs: friendly front end to mkfs 41 */ 42 #include <sys/param.h> 43 #include <sys/stat.h> 44 #include <sys/diskslice.h> 45 #include <sys/file.h> 46 #include <sys/mount.h> 47 48 #include <vfs/ufs/dir.h> 49 #include <vfs/ufs/dinode.h> 50 #include <vfs/ufs/fs.h> 51 #include <vfs/ufs/ufsmount.h> 52 53 #include <ctype.h> 54 #include <err.h> 55 #include <errno.h> 56 #include <paths.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <syslog.h> 61 #include <unistd.h> 62 #include <disktab.h> 63 64 #ifdef MFS 65 #include <sys/types.h> 66 #include <sys/mman.h> 67 #endif 68 69 #if __STDC__ 70 #include <stdarg.h> 71 #else 72 #include <varargs.h> 73 #endif 74 75 #include "mntopts.h" 76 #include "defs.h" 77 78 struct mntopt mopts[] = { 79 MOPT_STDOPTS, 80 MOPT_ASYNC, 81 MOPT_NULL, 82 }; 83 84 void fatal(const char *fmt, ...); 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 2048 96 #define DFL_BLKSIZE 16384 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 as many as possible 102 * cylinders per group. 103 */ 104 #define DESCPG 65536 /* desired fs_cpg ("infinity") */ 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 essentially 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 #define NTRACKS 1 /* number of heads */ 155 #define NSECTORS 4096 /* number of sectors */ 156 157 int mfs; /* run as the memory based filesystem */ 158 char *mfs_mtpt; /* mount point for mfs */ 159 struct stat mfs_mtstat; /* stat prior to mount */ 160 int Nflag; /* run without writing file system */ 161 int Oflag; /* format as an 4.3BSD file system */ 162 int Cflag; /* copy underlying filesystem (mfs only) */ 163 int Uflag; /* enable soft updates for file system */ 164 int fssize; /* file system size */ 165 int ntracks = NTRACKS; /* # tracks/cylinder */ 166 int nsectors = NSECTORS; /* # sectors/track */ 167 int nphyssectors; /* # sectors/track including spares */ 168 int secpercyl; /* sectors per cylinder */ 169 int trackspares = -1; /* spare sectors per track */ 170 int cylspares = -1; /* spare sectors per cylinder */ 171 int sectorsize; /* bytes/sector */ 172 int realsectorsize; /* bytes/sector in hardware */ 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 avgfilesize = AVFILESIZ;/* expected average file size */ 190 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 191 int bbsize = BBSIZE; /* boot block size */ 192 int sbsize = SBSIZE; /* superblock size */ 193 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 194 int t_or_u_flag = 0; /* user has specified -t or -u */ 195 u_long memleft; /* virtual memory available */ 196 caddr_t membase; /* start address of memory based filesystem */ 197 char *filename; 198 #ifdef COMPAT 199 char *disktype; 200 int unlabeled; 201 #endif 202 203 char mfsdevname[256]; 204 char *progname; 205 206 static void usage(void); 207 static void mfsintr(int signo); 208 209 int 210 main(int argc, char **argv) 211 { 212 int ch; 213 struct disktab geom; /* disk geometry data */ 214 struct stat st; 215 struct statfs *mp; 216 int fsi = -1, fso = -1, len, n, vflag; 217 char *s1, *s2, *special; 218 const char *opstring; 219 #ifdef MFS 220 struct vfsconf vfc; 221 int error; 222 #endif 223 224 bzero(&geom, sizeof(geom)); 225 vflag = 0; 226 if ((progname = strrchr(*argv, '/'))) 227 ++progname; 228 else 229 progname = *argv; 230 231 if (strstr(progname, "mfs")) { 232 mfs = 1; 233 Nflag++; 234 } 235 236 opstring = mfs ? 237 "NCF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" : 238 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 239 while ((ch = getopt(argc, argv, opstring)) != -1) { 240 switch (ch) { 241 case 'N': 242 Nflag = 1; 243 break; 244 case 'O': 245 Oflag = 1; 246 break; 247 case 'C': 248 Cflag = 1; /* MFS only */ 249 break; 250 case 'S': 251 if ((sectorsize = atoi(optarg)) <= 0) 252 fatal("%s: bad sector size", optarg); 253 break; 254 #ifdef COMPAT 255 case 'T': 256 disktype = optarg; 257 break; 258 #endif 259 case 'F': 260 filename = optarg; 261 break; 262 case 'U': 263 Uflag = 1; 264 break; 265 case 'a': 266 if ((maxcontig = atoi(optarg)) <= 0) 267 fatal("%s: bad maximum contiguous blocks", 268 optarg); 269 break; 270 case 'b': 271 if ((bsize = atoi(optarg)) < MINBSIZE) 272 fatal("%s: bad block size", optarg); 273 break; 274 case 'c': 275 if ((cpg = atoi(optarg)) <= 0) 276 fatal("%s: bad cylinders/group", optarg); 277 cpgflg++; 278 break; 279 case 'd': 280 if ((rotdelay = atoi(optarg)) < 0) 281 fatal("%s: bad rotational delay", optarg); 282 break; 283 case 'e': 284 if ((maxbpg = atoi(optarg)) <= 0) 285 fatal("%s: bad blocks per file in a cylinder group", 286 optarg); 287 break; 288 case 'f': 289 if ((fsize = atoi(optarg)) <= 0) 290 fatal("%s: bad fragment size", optarg); 291 break; 292 case 'g': 293 if ((avgfilesize = atoi(optarg)) <= 0) 294 fatal("%s: bad average file size", optarg); 295 break; 296 case 'h': 297 if ((avgfilesperdir = atoi(optarg)) <= 0) 298 fatal("%s: bad average files per dir", optarg); 299 break; 300 case 'i': 301 if ((density = atoi(optarg)) <= 0) 302 fatal("%s: bad bytes per inode", optarg); 303 break; 304 case 'k': 305 if ((trackskew = atoi(optarg)) < 0) 306 fatal("%s: bad track skew", optarg); 307 break; 308 case 'l': 309 if ((interleave = atoi(optarg)) <= 0) 310 fatal("%s: bad interleave", optarg); 311 break; 312 case 'm': 313 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 314 fatal("%s: bad free space %%", optarg); 315 break; 316 case 'n': 317 if ((nrpos = atoi(optarg)) < 0) 318 fatal("%s: bad rotational layout count", 319 optarg); 320 if (nrpos == 0) 321 nrpos = 1; 322 break; 323 case 'o': 324 if (mfs) 325 getmntopts(optarg, mopts, &mntflags, 0); 326 else { 327 if (strcmp(optarg, "space") == 0) 328 opt = FS_OPTSPACE; 329 else if (strcmp(optarg, "time") == 0) 330 opt = FS_OPTTIME; 331 else 332 fatal("%s: unknown optimization preference: use `space' or `time'", optarg); 333 } 334 break; 335 case 'p': 336 if ((trackspares = atoi(optarg)) < 0) 337 fatal("%s: bad spare sectors per track", 338 optarg); 339 break; 340 case 'r': 341 if ((rpm = atoi(optarg)) <= 0) 342 fatal("%s: bad revolutions/minute", optarg); 343 break; 344 case 's': 345 if ((fssize = atoi(optarg)) <= 0) 346 fatal("%s: bad file system size", optarg); 347 break; 348 case 't': 349 t_or_u_flag++; 350 if ((ntracks = atoi(optarg)) < 0) 351 fatal("%s: bad total tracks", optarg); 352 break; 353 case 'u': 354 t_or_u_flag++; 355 if ((nsectors = atoi(optarg)) < 0) 356 fatal("%s: bad sectors/track", optarg); 357 break; 358 case 'v': 359 vflag = 1; 360 break; 361 case 'x': 362 if ((cylspares = atoi(optarg)) < 0) 363 fatal("%s: bad spare sectors per cylinder", 364 optarg); 365 break; 366 case '?': 367 default: 368 usage(); 369 } 370 } 371 argc -= optind; 372 argv += optind; 373 374 if (argc != 2 && (mfs || argc != 1)) 375 usage(); 376 377 special = argv[0]; 378 /* Copy the NetBSD way of faking up a disk label */ 379 if (mfs && !strcmp(special, "swap")) { 380 /* 381 * it's an MFS, mounted on "swap." fake up a label. 382 * XXX XXX XXX 383 */ 384 fso = -1; /* XXX; normally done below. */ 385 386 geom.d_media_blksize = 512; 387 geom.d_nheads = 16; 388 geom.d_secpertrack = 64; 389 /* geom.d_ncylinders not used */ 390 geom.d_secpercyl = 1024; 391 geom.d_media_blocks = 16384; 392 geom.d_rpm = 3600; 393 geom.d_interleave = 1; 394 395 goto havelabel; 396 } 397 398 /* 399 * If we can't stat the device and the path is relative, try 400 * prepending /dev. 401 */ 402 if (stat(special, &st) < 0 && special[0] && special[0] != '/') 403 asprintf(&special, "/dev/%s", special); 404 405 if (Nflag) { 406 fso = -1; 407 } else { 408 fso = open(special, O_WRONLY); 409 if (fso < 0) 410 fatal("%s: %s", special, strerror(errno)); 411 412 /* Bail if target special is mounted */ 413 n = getmntinfo(&mp, MNT_NOWAIT); 414 if (n == 0) 415 fatal("%s: getmntinfo: %s", special, strerror(errno)); 416 417 len = sizeof(_PATH_DEV) - 1; 418 s1 = special; 419 if (strncmp(_PATH_DEV, s1, len) == 0) 420 s1 += len; 421 422 while (--n >= 0) { 423 s2 = mp->f_mntfromname; 424 if (strncmp(_PATH_DEV, s2, len) == 0) { 425 s2 += len - 1; 426 *s2 = 'r'; 427 } 428 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 429 fatal("%s is mounted on %s", 430 special, mp->f_mntonname); 431 ++mp; 432 } 433 } 434 if (mfs && disktype != NULL) { 435 struct disktab *dt; 436 437 if ((dt = getdisktabbyname(disktype)) == NULL) 438 fatal("%s: unknown disk type", disktype); 439 geom = *dt; 440 } else { 441 struct partinfo pinfo; 442 443 if (special[0] == 0) 444 fatal("null special file name"); 445 fsi = open(special, O_RDONLY); 446 if (fsi < 0) 447 fatal("%s: %s", special, strerror(errno)); 448 if (fstat(fsi, &st) < 0) 449 fatal("%s: %s", special, strerror(errno)); 450 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs && !vflag) 451 printf("%s: %s: not a character-special device\n", 452 progname, special); 453 #ifdef COMPAT 454 if (!mfs && disktype == NULL) 455 disktype = argv[1]; 456 #endif 457 if (ioctl(fsi, DIOCGPART, &pinfo) < 0) { 458 if (!vflag) { 459 fatal("%s: unable to retrieve geometry " 460 "information", argv[0]); 461 } 462 /* 463 * fake up geometry data 464 */ 465 geom.d_media_blksize = 512; 466 geom.d_nheads = 16; 467 geom.d_secpertrack = 64; 468 geom.d_secpercyl = 1024; 469 geom.d_media_blocks = st.st_size / 470 geom.d_media_blksize; 471 geom.d_media_size = geom.d_media_blocks * 472 geom.d_media_blksize; 473 /* geom.d_ncylinders not used */ 474 } else { 475 /* 476 * extract geometry from pinfo 477 */ 478 geom.d_media_blksize = pinfo.media_blksize; 479 geom.d_nheads = pinfo.d_nheads; 480 geom.d_secpertrack = pinfo.d_secpertrack; 481 geom.d_secpercyl = pinfo.d_secpercyl; 482 /* geom.d_ncylinders not used */ 483 geom.d_media_blocks = pinfo.media_blocks; 484 geom.d_media_size = pinfo.media_size; 485 } 486 if (geom.d_media_blocks == 0 || geom.d_media_size == 0) { 487 fatal("%s: is unavailable", argv[0]); 488 } 489 printf("%s: media size %6.2fMB\n", 490 argv[0], geom.d_media_size / 1024.0 / 1024.0); 491 if (geom.d_media_size / 512 >= 0x80000000ULL) 492 fatal("%s: media size is too large for newfs to handle", 493 argv[0]); 494 } 495 havelabel: 496 if (fssize == 0) 497 fssize = geom.d_media_blocks; 498 if ((uint32_t)fssize > geom.d_media_blocks && !mfs) { 499 fatal("%s: maximum file system size is %lld blocks", 500 argv[0], geom.d_media_blocks); 501 } 502 if (rpm == 0) { 503 rpm = geom.d_rpm; 504 if (rpm <= 0) 505 rpm = 3600; 506 } 507 if (ntracks == 0) { 508 ntracks = geom.d_nheads; 509 if (ntracks <= 0) 510 fatal("%s: no default #tracks", argv[0]); 511 } 512 if (nsectors == 0) { 513 nsectors = geom.d_secpertrack; 514 if (nsectors <= 0) 515 fatal("%s: no default #sectors/track", argv[0]); 516 } 517 if (sectorsize == 0) { 518 sectorsize = geom.d_media_blksize; 519 if (sectorsize <= 0) 520 fatal("%s: no default sector size", argv[0]); 521 } 522 if (trackskew == -1) { 523 trackskew = geom.d_trackskew; 524 if (trackskew < 0) 525 trackskew = 0; 526 } 527 if (interleave == 0) { 528 interleave = geom.d_interleave; 529 if (interleave <= 0) 530 interleave = 1; 531 } 532 if (fsize == 0) 533 fsize = MAX(DFL_FRAGSIZE, geom.d_media_blksize); 534 if (bsize == 0) 535 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 536 /* 537 * Maxcontig sets the default for the maximum number of blocks 538 * that may be allocated sequentially. With filesystem clustering 539 * it is possible to allocate contiguous blocks up to the maximum 540 * transfer size permitted by the controller or buffering. 541 */ 542 if (maxcontig == 0) 543 maxcontig = MAX(1, MAXPHYS / bsize - 1); 544 if (density == 0) 545 density = NFPI * fsize; 546 if (minfree < MINFREE && opt != FS_OPTSPACE) { 547 fprintf(stderr, "Warning: changing optimization to space "); 548 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 549 opt = FS_OPTSPACE; 550 } 551 if (trackspares == -1) 552 trackspares = 0; 553 nphyssectors = nsectors + trackspares; 554 if (cylspares == -1) 555 cylspares = 0; 556 secpercyl = nsectors * ntracks - cylspares; 557 /* 558 * Only complain if -t or -u have been specified; the default 559 * case (4096 sectors per cylinder) is intended to disagree 560 * with the disklabel. 561 */ 562 if (t_or_u_flag && (uint32_t)secpercyl != geom.d_secpercyl) 563 fprintf(stderr, "%s (%d) %s (%u)\n", 564 "Warning: calculated sectors per cylinder", secpercyl, 565 "disagrees with disk label", geom.d_secpercyl); 566 if (maxbpg == 0) 567 maxbpg = MAXBLKPG(bsize); 568 headswitch = geom.d_headswitch; 569 trackseek = geom.d_trkseek; 570 realsectorsize = sectorsize; 571 if (sectorsize != DEV_BSIZE) { /* XXX */ 572 int secperblk = sectorsize / DEV_BSIZE; 573 574 sectorsize = DEV_BSIZE; 575 nsectors *= secperblk; 576 nphyssectors *= secperblk; 577 secpercyl *= secperblk; 578 fssize *= secperblk; 579 } 580 if (mfs) { 581 mfs_mtpt = argv[1]; 582 if ( 583 stat(mfs_mtpt, &mfs_mtstat) < 0 || 584 !S_ISDIR(mfs_mtstat.st_mode) 585 ) { 586 fatal("mount point not dir: %s", mfs_mtpt); 587 } 588 } 589 mkfs(special, fsi, fso, (Cflag && mfs) ? argv[1] : NULL); 590 591 /* 592 * NOTE: Newfs no longer accesses or attempts to update the 593 * filesystem disklabel. 594 */ 595 if (!Nflag) 596 close(fso); 597 close(fsi); 598 #ifdef MFS 599 if (mfs) { 600 struct mfs_args args; 601 int udev; 602 603 snprintf(mfsdevname, sizeof(mfsdevname), "/dev/mfs%d", 604 getpid()); 605 args.fspec = mfsdevname; 606 args.export.ex_root = -2; 607 if (mntflags & MNT_RDONLY) 608 args.export.ex_flags = MNT_EXRDONLY; 609 else 610 args.export.ex_flags = 0; 611 args.base = membase; 612 args.size = fssize * sectorsize; 613 614 error = getvfsbyname("mfs", &vfc); 615 if (error && vfsisloadable("mfs")) { 616 if (vfsload("mfs")) 617 fatal("vfsload(mfs)"); 618 endvfsent(); /* flush cache */ 619 error = getvfsbyname("mfs", &vfc); 620 } 621 if (error) 622 fatal("mfs filesystem not available"); 623 624 udev = (253 << 8) | (getpid() & 255) | 625 ((getpid() & ~0xFF) << 8); 626 if (mknod(mfsdevname, S_IFCHR | 0700, udev) < 0) 627 printf("Warning: unable to create %s\n", mfsdevname); 628 signal(SIGINT, mfsintr); 629 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 630 fatal("%s: %s", argv[1], strerror(errno)); 631 signal(SIGINT, SIG_DFL); 632 mfsintr(SIGINT); 633 } 634 #endif 635 exit(0); 636 } 637 638 #ifdef MFS 639 640 static void 641 mfsintr(__unused int signo) 642 { 643 if (filename) 644 munmap(membase, fssize * sectorsize); 645 remove(mfsdevname); 646 } 647 648 #endif 649 650 /*VARARGS*/ 651 void 652 fatal(const char *fmt, ...) 653 { 654 va_list ap; 655 656 va_start(ap, fmt); 657 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 658 openlog(progname, LOG_CONS, LOG_DAEMON); 659 vsyslog(LOG_ERR, fmt, ap); 660 closelog(); 661 } else { 662 vwarnx(fmt, ap); 663 } 664 va_end(ap); 665 exit(1); 666 /*NOTREACHED*/ 667 } 668 669 static void 670 usage(void) 671 { 672 if (mfs) { 673 fprintf(stderr, 674 "usage: %s [ -fsoptions ] special-device mount-point\n", 675 progname); 676 } else 677 fprintf(stderr, 678 "usage: %s [ -fsoptions ] special-device%s\n", 679 progname, 680 #ifdef COMPAT 681 " [device-type]"); 682 #else 683 ""); 684 #endif 685 fprintf(stderr, "where fsoptions are:\n"); 686 fprintf(stderr, "\t-C (mfs) Copy the underlying filesystem to the MFS mount\n"); 687 fprintf(stderr, 688 "\t-N do not create file system, just print out parameters\n"); 689 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 690 fprintf(stderr, "\t-S sector size\n"); 691 #ifdef COMPAT 692 fprintf(stderr, "\t-T disktype\n"); 693 #endif 694 fprintf(stderr, "\t-U enable soft updates\n"); 695 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 696 fprintf(stderr, "\t-b block size\n"); 697 fprintf(stderr, "\t-c cylinders/group\n"); 698 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 699 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 700 fprintf(stderr, "\t-f frag size\n"); 701 fprintf(stderr, "\t-g average file size\n"); 702 fprintf(stderr, "\t-h average files per directory\n"); 703 fprintf(stderr, "\t-i number of bytes per inode\n"); 704 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 705 fprintf(stderr, "\t-l hardware sector interleave\n"); 706 fprintf(stderr, "\t-m minimum free space %%\n"); 707 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 708 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 709 fprintf(stderr, "\t-p spare sectors per track\n"); 710 fprintf(stderr, "\t-s file system size (sectors)\n"); 711 fprintf(stderr, "\t-r revolutions/minute\n"); 712 fprintf(stderr, "\t-t tracks/cylinder\n"); 713 fprintf(stderr, "\t-u sectors/track\n"); 714 fprintf(stderr, 715 "\t-v do not attempt to determine partition name from device name\n"); 716 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 717 exit(1); 718 } 719