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 const char copyright[] = 36 "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 /* 49 * newfs: friendly front end to mkfs 50 */ 51 #include <sys/param.h> 52 #include <sys/stat.h> 53 #include <sys/disklabel.h> 54 #include <sys/file.h> 55 #include <sys/mount.h> 56 57 #include <ufs/ufs/dir.h> 58 #include <ufs/ufs/dinode.h> 59 #include <ufs/ffs/fs.h> 60 #include <ufs/ufs/ufsmount.h> 61 62 #include <ctype.h> 63 #include <err.h> 64 #include <errno.h> 65 #include <paths.h> 66 #include <stdio.h> 67 #include <stdlib.h> 68 #include <string.h> 69 #include <syslog.h> 70 #include <unistd.h> 71 72 #ifdef MFS 73 #include <sys/types.h> 74 #include <sys/mman.h> 75 #endif 76 77 #if __STDC__ 78 #include <stdarg.h> 79 #else 80 #include <varargs.h> 81 #endif 82 83 #include "mntopts.h" 84 85 struct mntopt mopts[] = { 86 MOPT_STDOPTS, 87 MOPT_ASYNC, 88 { NULL }, 89 }; 90 91 #if __STDC__ 92 void fatal(const char *fmt, ...); 93 #else 94 void fatal(); 95 #endif 96 97 #define COMPAT /* allow non-labeled disks */ 98 99 /* 100 * The following two constants set the default block and fragment sizes. 101 * Both constants must be a power of 2 and meet the following constraints: 102 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 103 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 104 * DESBLKSIZE / DESFRAGSIZE <= 8 105 */ 106 #define DFL_FRAGSIZE 1024 107 #define DFL_BLKSIZE 8192 108 109 /* 110 * Cylinder groups may have up to many cylinders. The actual 111 * number used depends upon how much information can be stored 112 * on a single cylinder. The default is to use 22 cylinders 113 * per group, which seems to be the largest value allowed given 114 * all the other default values. 115 */ 116 #define DESCPG 22 /* desired fs_cpg */ 117 118 /* 119 * Once upon a time... 120 * ROTDELAY gives the minimum number of milliseconds to initiate 121 * another disk transfer on the same cylinder. It is used in 122 * determining the rotationally optimal layout for disk blocks 123 * within a file; the default of fs_rotdelay is 4ms. 124 * 125 * ...but now we make this 0 to disable the rotdelay delay because 126 * modern drives with read/write-behind achieve higher performance 127 * without the delay. 128 */ 129 #define ROTDELAY 0 130 131 /* 132 * MAXBLKPG determines the maximum number of data blocks which are 133 * placed in a single cylinder group. The default is one indirect 134 * block worth of data blocks. 135 */ 136 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 137 138 /* 139 * Each file system has a number of inodes statically allocated. 140 * We allocate one inode slot per NFPI fragments, expecting this 141 * to be far more than we will ever need. 142 */ 143 #define NFPI 4 144 145 /* 146 * Once upon a time... 147 * For each cylinder we keep track of the availability of blocks at different 148 * rotational positions, so that we can lay out the data to be picked 149 * up with minimum rotational latency. NRPOS is the default number of 150 * rotational positions that we distinguish. With NRPOS of 8 the resolution 151 * of our summary information is 2ms for a typical 3600 rpm drive. 152 * 153 * ...but now we make this 1 (which essentially disables the rotational 154 * position table because modern drives with read-ahead and write-behind do 155 * better without the rotational position table. 156 */ 157 #define NRPOS 1 /* number distinct rotational positions */ 158 159 /* 160 * About the same time as the above, we knew what went where on the disks. 161 * no longer so, so kill the code which finds the different platters too... 162 * We do this by saying one head, with a lot of sectors on it. 163 * The number of sectors are used to determine the size of a cyl-group. 164 * Kirk suggested one or two meg per "cylinder" so we say two. 165 */ 166 #define NTRACKS 1 /* number of heads */ 167 #define NSECTORS 4096 /* number of sectors */ 168 169 int mfs; /* run as the memory based filesystem */ 170 char *mfs_mtpt; /* mount point for mfs */ 171 struct stat mfs_mtstat; /* stat prior to mount */ 172 int Nflag; /* run without writing file system */ 173 int Oflag; /* format as an 4.3BSD file system */ 174 int Uflag; /* enable soft updates for file system */ 175 int fssize; /* file system size */ 176 int ntracks = NTRACKS; /* # tracks/cylinder */ 177 int nsectors = NSECTORS; /* # sectors/track */ 178 int nphyssectors; /* # sectors/track including spares */ 179 int secpercyl; /* sectors per cylinder */ 180 int trackspares = -1; /* spare sectors per track */ 181 int cylspares = -1; /* spare sectors per cylinder */ 182 int sectorsize; /* bytes/sector */ 183 int realsectorsize; /* bytes/sector in hardware */ 184 int rpm; /* revolutions/minute of drive */ 185 int interleave; /* hardware sector interleave */ 186 int trackskew = -1; /* sector 0 skew, per track */ 187 int headswitch; /* head switch time, usec */ 188 int trackseek; /* track-to-track seek, usec */ 189 int fsize = 0; /* fragment size */ 190 int bsize = 0; /* block size */ 191 int cpg = DESCPG; /* cylinders/cylinder group */ 192 int cpgflg; /* cylinders/cylinder group flag was given */ 193 int minfree = MINFREE; /* free space threshold */ 194 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 195 int density; /* number of bytes per inode */ 196 int maxcontig = 0; /* max contiguous blocks to allocate */ 197 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 198 int maxbpg; /* maximum blocks per file in a cyl group */ 199 int nrpos = NRPOS; /* # of distinguished rotational positions */ 200 int avgfilesize = AVFILESIZ;/* expected average file size */ 201 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 202 int bbsize = BBSIZE; /* boot block size */ 203 int sbsize = SBSIZE; /* superblock size */ 204 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 205 int t_or_u_flag = 0; /* user has specified -t or -u */ 206 u_long memleft; /* virtual memory available */ 207 caddr_t membase; /* start address of memory based filesystem */ 208 char *filename; 209 #ifdef COMPAT 210 char *disktype; 211 int unlabeled; 212 #endif 213 214 char device[MAXPATHLEN]; 215 char *progname; 216 217 extern void mkfs __P((struct partition *, char *, int, int)); 218 static void usage __P((void)); 219 220 int 221 main(argc, argv) 222 int argc; 223 char *argv[]; 224 { 225 register int ch; 226 register struct partition *pp; 227 register struct disklabel *lp; 228 struct disklabel mfsfakelabel; 229 struct disklabel *getdisklabel(); 230 struct partition oldpartition; 231 struct stat st; 232 struct statfs *mp; 233 int fsi, fso, len, n, vflag; 234 char *cp, *s1, *s2, *special, *opstring; 235 #ifdef MFS 236 struct vfsconf vfc; 237 int error; 238 char buf[BUFSIZ]; 239 #endif 240 241 vflag = 0; 242 if ((progname = strrchr(*argv, '/'))) 243 ++progname; 244 else 245 progname = *argv; 246 247 if (strstr(progname, "mfs")) { 248 mfs = 1; 249 Nflag++; 250 fprintf(stderr, 251 "WARNING: MFS is being phased out in preference for md devices\n" 252 "WARNING: Please see mdconfig(8) for details\n" 253 "WARNING: Continuing in 15 seconds\n"); 254 sleep(15); 255 256 } 257 258 opstring = mfs ? 259 "NF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:" : 260 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 261 while ((ch = getopt(argc, argv, opstring)) != -1) 262 switch (ch) { 263 case 'N': 264 Nflag = 1; 265 break; 266 case 'O': 267 Oflag = 1; 268 break; 269 case 'S': 270 if ((sectorsize = atoi(optarg)) <= 0) 271 fatal("%s: bad sector size", optarg); 272 break; 273 #ifdef COMPAT 274 case 'T': 275 disktype = optarg; 276 break; 277 #endif 278 case 'F': 279 filename = optarg; 280 break; 281 case 'U': 282 Uflag = 1; 283 break; 284 case 'a': 285 if ((maxcontig = atoi(optarg)) <= 0) 286 fatal("%s: bad maximum contiguous blocks", 287 optarg); 288 break; 289 case 'b': 290 if ((bsize = atoi(optarg)) < MINBSIZE) 291 fatal("%s: bad block size", optarg); 292 break; 293 case 'c': 294 if ((cpg = atoi(optarg)) <= 0) 295 fatal("%s: bad cylinders/group", optarg); 296 cpgflg++; 297 break; 298 case 'd': 299 if ((rotdelay = atoi(optarg)) < 0) 300 fatal("%s: bad rotational delay", optarg); 301 break; 302 case 'e': 303 if ((maxbpg = atoi(optarg)) <= 0) 304 fatal("%s: bad blocks per file in a cylinder group", 305 optarg); 306 break; 307 case 'f': 308 if ((fsize = atoi(optarg)) <= 0) 309 fatal("%s: bad fragment size", optarg); 310 break; 311 case 'g': 312 if ((avgfilesize = atoi(optarg)) <= 0) 313 fatal("%s: bad average file size", optarg); 314 break; 315 case 'h': 316 if ((avgfilesperdir = atoi(optarg)) <= 0) 317 fatal("%s: bad average files per dir", optarg); 318 break; 319 case 'i': 320 if ((density = atoi(optarg)) <= 0) 321 fatal("%s: bad bytes per inode", optarg); 322 break; 323 case 'k': 324 if ((trackskew = atoi(optarg)) < 0) 325 fatal("%s: bad track skew", optarg); 326 break; 327 case 'l': 328 if ((interleave = atoi(optarg)) <= 0) 329 fatal("%s: bad interleave", optarg); 330 break; 331 case 'm': 332 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 333 fatal("%s: bad free space %%", optarg); 334 break; 335 case 'n': 336 if ((nrpos = atoi(optarg)) < 0) 337 fatal("%s: bad rotational layout count", 338 optarg); 339 if (nrpos == 0) 340 nrpos = 1; 341 break; 342 case 'o': 343 if (mfs) 344 getmntopts(optarg, mopts, &mntflags, 0); 345 else { 346 if (strcmp(optarg, "space") == 0) 347 opt = FS_OPTSPACE; 348 else if (strcmp(optarg, "time") == 0) 349 opt = FS_OPTTIME; 350 else 351 fatal("%s: unknown optimization preference: use `space' or `time'", optarg); 352 } 353 break; 354 case 'p': 355 if ((trackspares = atoi(optarg)) < 0) 356 fatal("%s: bad spare sectors per track", 357 optarg); 358 break; 359 case 'r': 360 if ((rpm = atoi(optarg)) <= 0) 361 fatal("%s: bad revolutions/minute", optarg); 362 break; 363 case 's': 364 if ((fssize = atoi(optarg)) <= 0) 365 fatal("%s: bad file system size", optarg); 366 break; 367 case 't': 368 t_or_u_flag++; 369 if ((ntracks = atoi(optarg)) < 0) 370 fatal("%s: bad total tracks", optarg); 371 break; 372 case 'u': 373 t_or_u_flag++; 374 if ((nsectors = atoi(optarg)) < 0) 375 fatal("%s: bad sectors/track", optarg); 376 break; 377 case 'v': 378 vflag = 1; 379 break; 380 case 'x': 381 if ((cylspares = atoi(optarg)) < 0) 382 fatal("%s: bad spare sectors per cylinder", 383 optarg); 384 break; 385 case '?': 386 default: 387 usage(); 388 } 389 argc -= optind; 390 argv += optind; 391 392 if (argc != 2 && (mfs || argc != 1)) 393 usage(); 394 395 special = argv[0]; 396 /* Copy the NetBSD way of faking up a disk label */ 397 if (mfs && !strcmp(special, "swap")) { 398 /* 399 * it's an MFS, mounted on "swap." fake up a label. 400 * XXX XXX XXX 401 */ 402 fso = -1; /* XXX; normally done below. */ 403 404 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 405 mfsfakelabel.d_secsize = 512; 406 mfsfakelabel.d_nsectors = 64; 407 mfsfakelabel.d_ntracks = 16; 408 mfsfakelabel.d_ncylinders = 16; 409 mfsfakelabel.d_secpercyl = 1024; 410 mfsfakelabel.d_secperunit = 16384; 411 mfsfakelabel.d_rpm = 3600; 412 mfsfakelabel.d_interleave = 1; 413 mfsfakelabel.d_npartitions = 1; 414 mfsfakelabel.d_partitions[0].p_size = 16384; 415 mfsfakelabel.d_partitions[0].p_fsize = 1024; 416 mfsfakelabel.d_partitions[0].p_frag = 8; 417 mfsfakelabel.d_partitions[0].p_cpg = 16; 418 419 lp = &mfsfakelabel; 420 pp = &mfsfakelabel.d_partitions[0]; 421 422 goto havelabel; 423 } 424 425 cp = strrchr(special, '/'); 426 if (cp == 0) { 427 /* 428 * No path prefix; try /dev/%s. 429 */ 430 (void)snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); 431 special = device; 432 } 433 if (Nflag) { 434 fso = -1; 435 } else { 436 fso = open(special, O_WRONLY); 437 if (fso < 0) 438 fatal("%s: %s", special, strerror(errno)); 439 440 /* Bail if target special is mounted */ 441 n = getmntinfo(&mp, MNT_NOWAIT); 442 if (n == 0) 443 fatal("%s: getmntinfo: %s", special, strerror(errno)); 444 445 len = sizeof(_PATH_DEV) - 1; 446 s1 = special; 447 if (strncmp(_PATH_DEV, s1, len) == 0) 448 s1 += len; 449 450 while (--n >= 0) { 451 s2 = mp->f_mntfromname; 452 if (strncmp(_PATH_DEV, s2, len) == 0) { 453 s2 += len - 1; 454 *s2 = 'r'; 455 } 456 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 457 fatal("%s is mounted on %s", 458 special, mp->f_mntonname); 459 ++mp; 460 } 461 } 462 if (mfs && disktype != NULL) { 463 lp = (struct disklabel *)getdiskbyname(disktype); 464 if (lp == NULL) 465 fatal("%s: unknown disk type", disktype); 466 pp = &lp->d_partitions[1]; 467 } else { 468 fsi = open(special, O_RDONLY); 469 if (fsi < 0) 470 fatal("%s: %s", special, strerror(errno)); 471 if (fstat(fsi, &st) < 0) 472 fatal("%s: %s", special, strerror(errno)); 473 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 474 printf("%s: %s: not a character-special device\n", 475 progname, special); 476 cp = strchr(argv[0], '\0'); 477 if (cp == argv[0]) 478 fatal("null special file name"); 479 cp--; 480 if (!vflag && (*cp < 'a' || *cp > 'h') && !isdigit(*cp)) 481 fatal("%s: can't figure out file system partition", 482 argv[0]); 483 #ifdef COMPAT 484 if (!mfs && disktype == NULL) 485 disktype = argv[1]; 486 #endif 487 lp = getdisklabel(special, fsi); 488 if (vflag || isdigit(*cp)) 489 pp = &lp->d_partitions[0]; 490 else 491 pp = &lp->d_partitions[*cp - 'a']; 492 if (pp->p_size == 0) 493 fatal("%s: `%c' partition is unavailable", 494 argv[0], *cp); 495 if (pp->p_fstype == FS_BOOT) 496 fatal("%s: `%c' partition overlaps boot program", 497 argv[0], *cp); 498 } 499 havelabel: 500 if (fssize == 0) 501 fssize = pp->p_size; 502 if (fssize > pp->p_size && !mfs) 503 fatal("%s: maximum file system size on the `%c' partition is %d", 504 argv[0], *cp, pp->p_size); 505 if (rpm == 0) { 506 rpm = lp->d_rpm; 507 if (rpm <= 0) 508 rpm = 3600; 509 } 510 if (ntracks == 0) { 511 ntracks = lp->d_ntracks; 512 if (ntracks <= 0) 513 fatal("%s: no default #tracks", argv[0]); 514 } 515 if (nsectors == 0) { 516 nsectors = lp->d_nsectors; 517 if (nsectors <= 0) 518 fatal("%s: no default #sectors/track", argv[0]); 519 } 520 if (sectorsize == 0) { 521 sectorsize = lp->d_secsize; 522 if (sectorsize <= 0) 523 fatal("%s: no default sector size", argv[0]); 524 } 525 if (trackskew == -1) { 526 trackskew = lp->d_trackskew; 527 if (trackskew < 0) 528 trackskew = 0; 529 } 530 if (interleave == 0) { 531 interleave = lp->d_interleave; 532 if (interleave <= 0) 533 interleave = 1; 534 } 535 if (fsize == 0) { 536 fsize = pp->p_fsize; 537 if (fsize <= 0) 538 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 539 } 540 if (bsize == 0) { 541 bsize = pp->p_frag * pp->p_fsize; 542 if (bsize <= 0) 543 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 544 } 545 /* 546 * Maxcontig sets the default for the maximum number of blocks 547 * that may be allocated sequentially. With filesystem clustering 548 * it is possible to allocate contiguous blocks up to the maximum 549 * transfer size permitted by the controller or buffering. 550 */ 551 if (maxcontig == 0) 552 maxcontig = MAX(1, MAXPHYS / bsize - 1); 553 if (density == 0) 554 density = NFPI * fsize; 555 if (minfree < MINFREE && opt != FS_OPTSPACE) { 556 fprintf(stderr, "Warning: changing optimization to space "); 557 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 558 opt = FS_OPTSPACE; 559 } 560 if (trackspares == -1) { 561 trackspares = lp->d_sparespertrack; 562 if (trackspares < 0) 563 trackspares = 0; 564 } 565 nphyssectors = nsectors + trackspares; 566 if (cylspares == -1) { 567 cylspares = lp->d_sparespercyl; 568 if (cylspares < 0) 569 cylspares = 0; 570 } 571 secpercyl = nsectors * ntracks - cylspares; 572 /* 573 * Only complain if -t or -u have been specified; the default 574 * case (4096 sectors per cylinder) is intended to disagree 575 * with the disklabel. 576 */ 577 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 578 fprintf(stderr, "%s (%d) %s (%lu)\n", 579 "Warning: calculated sectors per cylinder", secpercyl, 580 "disagrees with disk label", (u_long)lp->d_secpercyl); 581 if (maxbpg == 0) 582 maxbpg = MAXBLKPG(bsize); 583 headswitch = lp->d_headswitch; 584 trackseek = lp->d_trkseek; 585 #ifdef notdef /* label may be 0 if faked up by kernel */ 586 bbsize = lp->d_bbsize; 587 sbsize = lp->d_sbsize; 588 #endif 589 oldpartition = *pp; 590 #ifdef tahoe 591 realsectorsize = sectorsize; 592 if (sectorsize != DEV_BSIZE) { /* XXX */ 593 int secperblk = DEV_BSIZE / sectorsize; 594 595 sectorsize = DEV_BSIZE; 596 nsectors /= secperblk; 597 nphyssectors /= secperblk; 598 secpercyl /= secperblk; 599 fssize /= secperblk; 600 pp->p_size /= secperblk; 601 } 602 #else 603 realsectorsize = sectorsize; 604 if (sectorsize != DEV_BSIZE) { /* XXX */ 605 int secperblk = sectorsize / DEV_BSIZE; 606 607 sectorsize = DEV_BSIZE; 608 nsectors *= secperblk; 609 nphyssectors *= secperblk; 610 secpercyl *= secperblk; 611 fssize *= secperblk; 612 pp->p_size *= secperblk; 613 } 614 #endif 615 if (mfs) { 616 mfs_mtpt = argv[1]; 617 if ( 618 stat(mfs_mtpt, &mfs_mtstat) < 0 || 619 !S_ISDIR(mfs_mtstat.st_mode) 620 ) { 621 fatal("mount point not dir: %s", mfs_mtpt); 622 } 623 } 624 mkfs(pp, special, fsi, fso); 625 #ifdef tahoe 626 if (realsectorsize != DEV_BSIZE) 627 pp->p_size *= DEV_BSIZE / realsectorsize; 628 #else 629 if (realsectorsize != DEV_BSIZE) 630 pp->p_size /= realsectorsize /DEV_BSIZE; 631 #endif 632 if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 633 rewritelabel(special, fso, lp); 634 if (!Nflag) 635 close(fso); 636 close(fsi); 637 #ifdef MFS 638 if (mfs) { 639 struct mfs_args args; 640 641 snprintf(buf, sizeof(buf), "mfs:%d", getpid()); 642 args.fspec = buf; 643 args.export.ex_root = -2; 644 if (mntflags & MNT_RDONLY) 645 args.export.ex_flags = MNT_EXRDONLY; 646 else 647 args.export.ex_flags = 0; 648 args.base = membase; 649 args.size = fssize * sectorsize; 650 651 error = getvfsbyname("mfs", &vfc); 652 if (error && vfsisloadable("mfs")) { 653 if (vfsload("mfs")) 654 fatal("vfsload(mfs)"); 655 endvfsent(); /* flush cache */ 656 error = getvfsbyname("mfs", &vfc); 657 } 658 if (error) 659 fatal("mfs filesystem not available"); 660 661 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 662 fatal("%s: %s", argv[1], strerror(errno)); 663 if(filename) { 664 munmap(membase,fssize * sectorsize); 665 } 666 } 667 #endif 668 exit(0); 669 } 670 671 #ifdef COMPAT 672 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 673 #else 674 char lmsg[] = "%s: can't read disk label"; 675 #endif 676 677 struct disklabel * 678 getdisklabel(s, fd) 679 char *s; 680 int fd; 681 { 682 static struct disklabel lab; 683 684 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 685 #ifdef COMPAT 686 if (disktype) { 687 struct disklabel *lp, *getdiskbyname(); 688 689 unlabeled++; 690 lp = getdiskbyname(disktype); 691 if (lp == NULL) 692 fatal("%s: unknown disk type", disktype); 693 return (lp); 694 } 695 #endif 696 warn("ioctl (GDINFO)"); 697 fatal(lmsg, s); 698 } 699 return (&lab); 700 } 701 702 rewritelabel(s, fd, lp) 703 char *s; 704 int fd; 705 register struct disklabel *lp; 706 { 707 #ifdef COMPAT 708 if (unlabeled) 709 return; 710 #endif 711 lp->d_checksum = 0; 712 lp->d_checksum = dkcksum(lp); 713 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 714 warn("ioctl (WDINFO)"); 715 fatal("%s: can't rewrite disk label", s); 716 } 717 } 718 719 /*VARARGS*/ 720 void 721 #if __STDC__ 722 fatal(const char *fmt, ...) 723 #else 724 fatal(fmt, va_alist) 725 char *fmt; 726 va_dcl 727 #endif 728 { 729 va_list ap; 730 731 #if __STDC__ 732 va_start(ap, fmt); 733 #else 734 va_start(ap); 735 #endif 736 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 737 openlog(progname, LOG_CONS, LOG_DAEMON); 738 vsyslog(LOG_ERR, fmt, ap); 739 closelog(); 740 } else { 741 vwarnx(fmt, ap); 742 } 743 va_end(ap); 744 exit(1); 745 /*NOTREACHED*/ 746 } 747 748 static void 749 usage() 750 { 751 if (mfs) { 752 fprintf(stderr, 753 "usage: %s [ -fsoptions ] special-device mount-point\n", 754 progname); 755 } else 756 fprintf(stderr, 757 "usage: %s [ -fsoptions ] special-device%s\n", 758 progname, 759 #ifdef COMPAT 760 " [device-type]"); 761 #else 762 ""); 763 #endif 764 fprintf(stderr, "where fsoptions are:\n"); 765 fprintf(stderr, 766 "\t-N do not create file system, just print out parameters\n"); 767 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 768 fprintf(stderr, "\t-S sector size\n"); 769 #ifdef COMPAT 770 fprintf(stderr, "\t-T disktype\n"); 771 #endif 772 fprintf(stderr, "\t-U enable soft updates\n"); 773 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 774 fprintf(stderr, "\t-b block size\n"); 775 fprintf(stderr, "\t-c cylinders/group\n"); 776 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 777 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 778 fprintf(stderr, "\t-f frag size\n"); 779 fprintf(stderr, "\t-g average file size\n"); 780 fprintf(stderr, "\t-h average files per directory\n"); 781 fprintf(stderr, "\t-i number of bytes per inode\n"); 782 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 783 fprintf(stderr, "\t-l hardware sector interleave\n"); 784 fprintf(stderr, "\t-m minimum free space %%\n"); 785 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 786 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 787 fprintf(stderr, "\t-p spare sectors per track\n"); 788 fprintf(stderr, "\t-s file system size (sectors)\n"); 789 fprintf(stderr, "\t-r revolutions/minute\n"); 790 fprintf(stderr, "\t-t tracks/cylinder\n"); 791 fprintf(stderr, "\t-u sectors/track\n"); 792 fprintf(stderr, 793 "\t-v do not attempt to determine partition name from device name\n"); 794 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 795 exit(1); 796 } 797