newfs.c revision 92711
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1983, 1989, 1993, 1994 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 3. All advertising materials mentioning features or use of this software 141558Srgrimes * must display the following acknowledgement: 151558Srgrimes * This product includes software developed by the University of 161558Srgrimes * California, Berkeley and its contributors. 171558Srgrimes * 4. Neither the name of the University nor the names of its contributors 181558Srgrimes * may be used to endorse or promote products derived from this software 191558Srgrimes * without specific prior written permission. 201558Srgrimes * 211558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311558Srgrimes * SUCH DAMAGE. 321558Srgrimes */ 331558Srgrimes 341558Srgrimes#ifndef lint 3537664Scharnierstatic const char copyright[] = 3637664Scharnier"@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 3737664Scharnier The Regents of the University of California. All rights reserved.\n"; 381558Srgrimes#endif /* not lint */ 391558Srgrimes 401558Srgrimes#ifndef lint 4137664Scharnier#if 0 4237664Scharnierstatic char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; 4337664Scharnier#endif 4437664Scharnierstatic const char rcsid[] = 4550476Speter "$FreeBSD: head/sbin/newfs/newfs.c 92711 2002-03-19 17:20:02Z iedowse $"; 461558Srgrimes#endif /* not lint */ 471558Srgrimes 481558Srgrimes/* 491558Srgrimes * newfs: friendly front end to mkfs 501558Srgrimes */ 511558Srgrimes#include <sys/param.h> 521558Srgrimes#include <sys/stat.h> 531558Srgrimes#include <sys/disklabel.h> 541558Srgrimes#include <sys/file.h> 551558Srgrimes#include <sys/mount.h> 561558Srgrimes 5737707Scharnier#include <ufs/ufs/dir.h> 5837707Scharnier#include <ufs/ufs/dinode.h> 591558Srgrimes#include <ufs/ffs/fs.h> 6023682Speter#include <ufs/ufs/ufsmount.h> 611558Srgrimes 621558Srgrimes#include <ctype.h> 6337664Scharnier#include <err.h> 641558Srgrimes#include <errno.h> 651558Srgrimes#include <paths.h> 661558Srgrimes#include <stdio.h> 671558Srgrimes#include <stdlib.h> 681558Srgrimes#include <string.h> 691558Srgrimes#include <syslog.h> 701558Srgrimes#include <unistd.h> 711558Srgrimes 721558Srgrimes#include <stdarg.h> 731558Srgrimes 7481911Skrisvoid fatal(const char *fmt, ...) __printflike(1, 2); 751558Srgrimes 761558Srgrimes#define COMPAT /* allow non-labeled disks */ 771558Srgrimes 781558Srgrimes/* 791558Srgrimes * The following two constants set the default block and fragment sizes. 801558Srgrimes * Both constants must be a power of 2 and meet the following constraints: 811558Srgrimes * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 821558Srgrimes * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 831558Srgrimes * DESBLKSIZE / DESFRAGSIZE <= 8 841558Srgrimes */ 8587661Ssheldonh#define DFL_FRAGSIZE 2048 8687661Ssheldonh#define DFL_BLKSIZE 16384 871558Srgrimes 881558Srgrimes/* 891558Srgrimes * Cylinder groups may have up to many cylinders. The actual 901558Srgrimes * number used depends upon how much information can be stored 9184466Sroberto * on a single cylinder. The default is to use as many as possible 9284466Sroberto * cylinders per group. 931558Srgrimes */ 9484466Sroberto#define DESCPG 65536 /* desired fs_cpg ("infinity") */ 951558Srgrimes 961558Srgrimes/* 973271Sdg * Once upon a time... 983271Sdg * ROTDELAY gives the minimum number of milliseconds to initiate 993271Sdg * another disk transfer on the same cylinder. It is used in 1003271Sdg * determining the rotationally optimal layout for disk blocks 1013271Sdg * within a file; the default of fs_rotdelay is 4ms. 1023271Sdg * 1033271Sdg * ...but now we make this 0 to disable the rotdelay delay because 1043271Sdg * modern drives with read/write-behind achieve higher performance 1053271Sdg * without the delay. 1061558Srgrimes */ 1073271Sdg#define ROTDELAY 0 1081558Srgrimes 1091558Srgrimes/* 1101558Srgrimes * MAXBLKPG determines the maximum number of data blocks which are 1111558Srgrimes * placed in a single cylinder group. The default is one indirect 1121558Srgrimes * block worth of data blocks. 1131558Srgrimes */ 1141558Srgrimes#define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 1151558Srgrimes 1161558Srgrimes/* 1171558Srgrimes * Each file system has a number of inodes statically allocated. 1181558Srgrimes * We allocate one inode slot per NFPI fragments, expecting this 1191558Srgrimes * to be far more than we will ever need. 1201558Srgrimes */ 1211558Srgrimes#define NFPI 4 1221558Srgrimes 1231558Srgrimes/* 1243271Sdg * Once upon a time... 1253271Sdg * For each cylinder we keep track of the availability of blocks at different 1263271Sdg * rotational positions, so that we can lay out the data to be picked 1273271Sdg * up with minimum rotational latency. NRPOS is the default number of 1283271Sdg * rotational positions that we distinguish. With NRPOS of 8 the resolution 1293271Sdg * of our summary information is 2ms for a typical 3600 rpm drive. 1303271Sdg * 13132537Sbde * ...but now we make this 1 (which essentially disables the rotational 1323467Sdg * position table because modern drives with read-ahead and write-behind do 1333467Sdg * better without the rotational position table. 1341558Srgrimes */ 1353467Sdg#define NRPOS 1 /* number distinct rotational positions */ 1361558Srgrimes 1376192Sphk/* 1386192Sphk * About the same time as the above, we knew what went where on the disks. 1396192Sphk * no longer so, so kill the code which finds the different platters too... 1406192Sphk * We do this by saying one head, with a lot of sectors on it. 1416192Sphk * The number of sectors are used to determine the size of a cyl-group. 1426192Sphk * Kirk suggested one or two meg per "cylinder" so we say two. 1436192Sphk */ 1446192Sphk#define NTRACKS 1 /* number of heads */ 1456192Sphk#define NSECTORS 4096 /* number of sectors */ 1466192Sphk 1471558Srgrimesint Nflag; /* run without writing file system */ 1481558Srgrimesint Oflag; /* format as an 4.3BSD file system */ 14975078Sobrienint Uflag; /* enable soft updates for file system */ 1501558Srgrimesint fssize; /* file system size */ 1516192Sphkint ntracks = NTRACKS; /* # tracks/cylinder */ 1526192Sphkint nsectors = NSECTORS; /* # sectors/track */ 1531558Srgrimesint nphyssectors; /* # sectors/track including spares */ 1541558Srgrimesint secpercyl; /* sectors per cylinder */ 1551558Srgrimesint trackspares = -1; /* spare sectors per track */ 1561558Srgrimesint cylspares = -1; /* spare sectors per cylinder */ 1571558Srgrimesint sectorsize; /* bytes/sector */ 1581558Srgrimesint realsectorsize; /* bytes/sector in hardware */ 1591558Srgrimesint rpm; /* revolutions/minute of drive */ 1601558Srgrimesint interleave; /* hardware sector interleave */ 1611558Srgrimesint trackskew = -1; /* sector 0 skew, per track */ 1621558Srgrimesint headswitch; /* head switch time, usec */ 1631558Srgrimesint trackseek; /* track-to-track seek, usec */ 1641558Srgrimesint fsize = 0; /* fragment size */ 1651558Srgrimesint bsize = 0; /* block size */ 16685098Srobertoint cpg = DESCPG; /* cylinders/cylinder group */ 1671558Srgrimesint cpgflg; /* cylinders/cylinder group flag was given */ 1681558Srgrimesint minfree = MINFREE; /* free space threshold */ 1691558Srgrimesint opt = DEFAULTOPT; /* optimization preference (space or time) */ 1701558Srgrimesint density; /* number of bytes per inode */ 1711558Srgrimesint maxcontig = 0; /* max contiguous blocks to allocate */ 1721558Srgrimesint rotdelay = ROTDELAY; /* rotational delay between blocks */ 1731558Srgrimesint maxbpg; /* maximum blocks per file in a cyl group */ 1741558Srgrimesint nrpos = NRPOS; /* # of distinguished rotational positions */ 17575377Smckusickint avgfilesize = AVFILESIZ;/* expected average file size */ 17675377Smckusickint avgfilesperdir = AFPDIR;/* expected number of files per directory */ 1771558Srgrimesint bbsize = BBSIZE; /* boot block size */ 1781558Srgrimesint sbsize = SBSIZE; /* superblock size */ 17910846Sdgint t_or_u_flag = 0; /* user has specified -t or -u */ 1801558Srgrimes#ifdef COMPAT 1811558Srgrimeschar *disktype; 1821558Srgrimesint unlabeled; 1831558Srgrimes#endif 1841558Srgrimes 1851558Srgrimeschar device[MAXPATHLEN]; 1861558Srgrimeschar *progname; 1871558Srgrimes 18892483Sphkextern void mkfs (struct partition *, char *, int, int); 18992533Sbdestatic void rewritelabel (char *s, int fd, register struct disklabel *lp); 19092483Sphkstatic void usage (void); 19137664Scharnier 1921558Srgrimesint 19392711Siedowsemain(int argc, char *argv[]) 1941558Srgrimes{ 19592483Sphk struct partition *pp; 19692483Sphk struct disklabel *lp; 1971558Srgrimes struct disklabel *getdisklabel(); 1981558Srgrimes struct partition oldpartition; 1991558Srgrimes struct stat st; 2001558Srgrimes struct statfs *mp; 20137664Scharnier char *cp, *s1, *s2, *special, *opstring; 20292711Siedowse int ch, fsi, fso, len, n, vflag; 2031558Srgrimes 20439066Sgrog vflag = 0; 20537664Scharnier if ((progname = strrchr(*argv, '/'))) 2061558Srgrimes ++progname; 2071558Srgrimes else 2081558Srgrimes progname = *argv; 2091558Srgrimes 21077420Sphk opstring = "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 21124359Simp while ((ch = getopt(argc, argv, opstring)) != -1) 2121558Srgrimes switch (ch) { 2131558Srgrimes case 'N': 2141558Srgrimes Nflag = 1; 2151558Srgrimes break; 2161558Srgrimes case 'O': 2171558Srgrimes Oflag = 1; 2181558Srgrimes break; 2191558Srgrimes case 'S': 2201558Srgrimes if ((sectorsize = atoi(optarg)) <= 0) 2211558Srgrimes fatal("%s: bad sector size", optarg); 2221558Srgrimes break; 2231558Srgrimes#ifdef COMPAT 2241558Srgrimes case 'T': 2251558Srgrimes disktype = optarg; 2261558Srgrimes break; 2271558Srgrimes#endif 22875078Sobrien case 'U': 22975078Sobrien Uflag = 1; 23075078Sobrien break; 2311558Srgrimes case 'a': 2321558Srgrimes if ((maxcontig = atoi(optarg)) <= 0) 23337664Scharnier fatal("%s: bad maximum contiguous blocks", 2341558Srgrimes optarg); 2351558Srgrimes break; 2361558Srgrimes case 'b': 2371558Srgrimes if ((bsize = atoi(optarg)) < MINBSIZE) 2381558Srgrimes fatal("%s: bad block size", optarg); 2391558Srgrimes break; 2401558Srgrimes case 'c': 2411558Srgrimes if ((cpg = atoi(optarg)) <= 0) 2421558Srgrimes fatal("%s: bad cylinders/group", optarg); 2431558Srgrimes cpgflg++; 2441558Srgrimes break; 2451558Srgrimes case 'd': 2461558Srgrimes if ((rotdelay = atoi(optarg)) < 0) 24737664Scharnier fatal("%s: bad rotational delay", optarg); 2481558Srgrimes break; 2491558Srgrimes case 'e': 2501558Srgrimes if ((maxbpg = atoi(optarg)) <= 0) 25137664Scharnier fatal("%s: bad blocks per file in a cylinder group", 2521558Srgrimes optarg); 2531558Srgrimes break; 2541558Srgrimes case 'f': 2551558Srgrimes if ((fsize = atoi(optarg)) <= 0) 2561558Srgrimes fatal("%s: bad fragment size", optarg); 2571558Srgrimes break; 25875377Smckusick case 'g': 25975377Smckusick if ((avgfilesize = atoi(optarg)) <= 0) 26075377Smckusick fatal("%s: bad average file size", optarg); 26175377Smckusick break; 26275377Smckusick case 'h': 26375377Smckusick if ((avgfilesperdir = atoi(optarg)) <= 0) 26475377Smckusick fatal("%s: bad average files per dir", optarg); 26575377Smckusick break; 2661558Srgrimes case 'i': 2671558Srgrimes if ((density = atoi(optarg)) <= 0) 26837664Scharnier fatal("%s: bad bytes per inode", optarg); 2691558Srgrimes break; 2701558Srgrimes case 'k': 2711558Srgrimes if ((trackskew = atoi(optarg)) < 0) 2721558Srgrimes fatal("%s: bad track skew", optarg); 2731558Srgrimes break; 2741558Srgrimes case 'l': 2751558Srgrimes if ((interleave = atoi(optarg)) <= 0) 2761558Srgrimes fatal("%s: bad interleave", optarg); 2771558Srgrimes break; 2781558Srgrimes case 'm': 2791558Srgrimes if ((minfree = atoi(optarg)) < 0 || minfree > 99) 28037664Scharnier fatal("%s: bad free space %%", optarg); 2811558Srgrimes break; 2821558Srgrimes case 'n': 2833271Sdg if ((nrpos = atoi(optarg)) < 0) 28437664Scharnier fatal("%s: bad rotational layout count", 2851558Srgrimes optarg); 2863467Sdg if (nrpos == 0) 2873467Sdg nrpos = 1; 2881558Srgrimes break; 2891558Srgrimes case 'o': 29077420Sphk if (strcmp(optarg, "space") == 0) 29177420Sphk opt = FS_OPTSPACE; 29277420Sphk else if (strcmp(optarg, "time") == 0) 29377420Sphk opt = FS_OPTTIME; 29477420Sphk else 29592533Sbde fatal( 29692533Sbde "%s: unknown optimization preference: use `space' or `time'", 29792533Sbde optarg); 2981558Srgrimes break; 2991558Srgrimes case 'p': 3001558Srgrimes if ((trackspares = atoi(optarg)) < 0) 3011558Srgrimes fatal("%s: bad spare sectors per track", 3021558Srgrimes optarg); 3031558Srgrimes break; 3041558Srgrimes case 'r': 3051558Srgrimes if ((rpm = atoi(optarg)) <= 0) 30637664Scharnier fatal("%s: bad revolutions/minute", optarg); 3071558Srgrimes break; 3081558Srgrimes case 's': 3091558Srgrimes if ((fssize = atoi(optarg)) <= 0) 3101558Srgrimes fatal("%s: bad file system size", optarg); 3111558Srgrimes break; 3121558Srgrimes case 't': 31310846Sdg t_or_u_flag++; 3146202Sphk if ((ntracks = atoi(optarg)) < 0) 3151558Srgrimes fatal("%s: bad total tracks", optarg); 3161558Srgrimes break; 3171558Srgrimes case 'u': 31810846Sdg t_or_u_flag++; 3196202Sphk if ((nsectors = atoi(optarg)) < 0) 3201558Srgrimes fatal("%s: bad sectors/track", optarg); 3211558Srgrimes break; 32239066Sgrog case 'v': 32339066Sgrog vflag = 1; 32439066Sgrog break; 3251558Srgrimes case 'x': 3261558Srgrimes if ((cylspares = atoi(optarg)) < 0) 3271558Srgrimes fatal("%s: bad spare sectors per cylinder", 3281558Srgrimes optarg); 3291558Srgrimes break; 3301558Srgrimes case '?': 3311558Srgrimes default: 3321558Srgrimes usage(); 3331558Srgrimes } 3341558Srgrimes argc -= optind; 3351558Srgrimes argv += optind; 3361558Srgrimes 33777420Sphk if (argc != 2 && argc != 1) 3381558Srgrimes usage(); 3391558Srgrimes 3401558Srgrimes special = argv[0]; 34123682Speter cp = strrchr(special, '/'); 3421558Srgrimes if (cp == 0) { 3431558Srgrimes /* 34492533Sbde * No path prefix; try prefixing _PATH_DEV. 3451558Srgrimes */ 34692533Sbde snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); 3471558Srgrimes special = device; 3481558Srgrimes } 34985860Sphk if (Nflag) 3501558Srgrimes fso = -1; 35185860Sphk else { 3521558Srgrimes fso = open(special, O_WRONLY); 3531558Srgrimes if (fso < 0) 3541558Srgrimes fatal("%s: %s", special, strerror(errno)); 3551558Srgrimes 3561558Srgrimes /* Bail if target special is mounted */ 3571558Srgrimes n = getmntinfo(&mp, MNT_NOWAIT); 3581558Srgrimes if (n == 0) 3591558Srgrimes fatal("%s: getmntinfo: %s", special, strerror(errno)); 3601558Srgrimes 3611558Srgrimes len = sizeof(_PATH_DEV) - 1; 3621558Srgrimes s1 = special; 3631558Srgrimes if (strncmp(_PATH_DEV, s1, len) == 0) 3641558Srgrimes s1 += len; 3651558Srgrimes 3661558Srgrimes while (--n >= 0) { 3671558Srgrimes s2 = mp->f_mntfromname; 3681558Srgrimes if (strncmp(_PATH_DEV, s2, len) == 0) { 3691558Srgrimes s2 += len - 1; 3701558Srgrimes *s2 = 'r'; 3711558Srgrimes } 3721558Srgrimes if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 3731558Srgrimes fatal("%s is mounted on %s", 3741558Srgrimes special, mp->f_mntonname); 3751558Srgrimes ++mp; 3761558Srgrimes } 3771558Srgrimes } 37877420Sphk fsi = open(special, O_RDONLY); 37977420Sphk if (fsi < 0) 38077420Sphk fatal("%s: %s", special, strerror(errno)); 38177420Sphk if (fstat(fsi, &st) < 0) 38277420Sphk fatal("%s: %s", special, strerror(errno)); 38377420Sphk if ((st.st_mode & S_IFMT) != S_IFCHR) 38477420Sphk printf("%s: %s: not a character-special device\n", 38577420Sphk progname, special); 38677420Sphk cp = strchr(argv[0], '\0'); 38777420Sphk if (cp == argv[0]) 38877420Sphk fatal("null special file name"); 38977420Sphk cp--; 39077420Sphk if (!vflag && (*cp < 'a' || *cp > 'h') && !isdigit(*cp)) 39177420Sphk fatal("%s: can't figure out file system partition", 39277420Sphk argv[0]); 3931558Srgrimes#ifdef COMPAT 39477420Sphk if (disktype == NULL) 39577420Sphk disktype = argv[1]; 3961558Srgrimes#endif 39777420Sphk lp = getdisklabel(special, fsi); 39877420Sphk if (vflag || isdigit(*cp)) 39977420Sphk pp = &lp->d_partitions[0]; 40077420Sphk else 40177420Sphk pp = &lp->d_partitions[*cp - 'a']; 40277420Sphk if (pp->p_size == 0) 40377420Sphk fatal("%s: `%c' partition is unavailable", 40477420Sphk argv[0], *cp); 40577420Sphk if (pp->p_fstype == FS_BOOT) 40677420Sphk fatal("%s: `%c' partition overlaps boot program", 40785860Sphk argv[0], *cp); 4081558Srgrimes if (fssize == 0) 4091558Srgrimes fssize = pp->p_size; 41077420Sphk if (fssize > pp->p_size) 41192533Sbde fatal( 41292533Sbde "%s: maximum file system size on the `%c' partition is %d", 41392533Sbde argv[0], *cp, pp->p_size); 4141558Srgrimes if (rpm == 0) { 4151558Srgrimes rpm = lp->d_rpm; 4161558Srgrimes if (rpm <= 0) 4171558Srgrimes rpm = 3600; 4181558Srgrimes } 4191558Srgrimes if (ntracks == 0) { 4201558Srgrimes ntracks = lp->d_ntracks; 4211558Srgrimes if (ntracks <= 0) 4221558Srgrimes fatal("%s: no default #tracks", argv[0]); 4231558Srgrimes } 4241558Srgrimes if (nsectors == 0) { 4251558Srgrimes nsectors = lp->d_nsectors; 4261558Srgrimes if (nsectors <= 0) 4271558Srgrimes fatal("%s: no default #sectors/track", argv[0]); 4281558Srgrimes } 4291558Srgrimes if (sectorsize == 0) { 4301558Srgrimes sectorsize = lp->d_secsize; 4311558Srgrimes if (sectorsize <= 0) 4321558Srgrimes fatal("%s: no default sector size", argv[0]); 4331558Srgrimes } 4341558Srgrimes if (trackskew == -1) { 4351558Srgrimes trackskew = lp->d_trackskew; 4361558Srgrimes if (trackskew < 0) 4371558Srgrimes trackskew = 0; 4381558Srgrimes } 4391558Srgrimes if (interleave == 0) { 4401558Srgrimes interleave = lp->d_interleave; 4411558Srgrimes if (interleave <= 0) 4421558Srgrimes interleave = 1; 4431558Srgrimes } 4441558Srgrimes if (fsize == 0) { 4451558Srgrimes fsize = pp->p_fsize; 4461558Srgrimes if (fsize <= 0) 4471558Srgrimes fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 4481558Srgrimes } 4491558Srgrimes if (bsize == 0) { 4501558Srgrimes bsize = pp->p_frag * pp->p_fsize; 4511558Srgrimes if (bsize <= 0) 4521558Srgrimes bsize = MIN(DFL_BLKSIZE, 8 * fsize); 4531558Srgrimes } 4541558Srgrimes /* 4551558Srgrimes * Maxcontig sets the default for the maximum number of blocks 4561558Srgrimes * that may be allocated sequentially. With filesystem clustering 4571558Srgrimes * it is possible to allocate contiguous blocks up to the maximum 4581558Srgrimes * transfer size permitted by the controller or buffering. 4591558Srgrimes */ 4601558Srgrimes if (maxcontig == 0) 46110627Sdg maxcontig = MAX(1, MAXPHYS / bsize - 1); 4621558Srgrimes if (density == 0) 4631558Srgrimes density = NFPI * fsize; 4641558Srgrimes if (minfree < MINFREE && opt != FS_OPTSPACE) { 4651558Srgrimes fprintf(stderr, "Warning: changing optimization to space "); 4661558Srgrimes fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 4671558Srgrimes opt = FS_OPTSPACE; 4681558Srgrimes } 4691558Srgrimes if (trackspares == -1) { 4701558Srgrimes trackspares = lp->d_sparespertrack; 4711558Srgrimes if (trackspares < 0) 4721558Srgrimes trackspares = 0; 4731558Srgrimes } 4741558Srgrimes nphyssectors = nsectors + trackspares; 4751558Srgrimes if (cylspares == -1) { 4761558Srgrimes cylspares = lp->d_sparespercyl; 4771558Srgrimes if (cylspares < 0) 4781558Srgrimes cylspares = 0; 4791558Srgrimes } 4801558Srgrimes secpercyl = nsectors * ntracks - cylspares; 48110649Sjoerg /* 48210649Sjoerg * Only complain if -t or -u have been specified; the default 48332537Sbde * case (4096 sectors per cylinder) is intended to disagree 48410649Sjoerg * with the disklabel. 48510649Sjoerg */ 48610846Sdg if (t_or_u_flag && secpercyl != lp->d_secpercyl) 4871558Srgrimes fprintf(stderr, "%s (%d) %s (%lu)\n", 48885860Sphk "Warning: calculated sectors per cylinder", secpercyl, 48985860Sphk "disagrees with disk label", (u_long)lp->d_secpercyl); 4901558Srgrimes if (maxbpg == 0) 4911558Srgrimes maxbpg = MAXBLKPG(bsize); 4921558Srgrimes headswitch = lp->d_headswitch; 4931558Srgrimes trackseek = lp->d_trkseek; 4941558Srgrimes#ifdef notdef /* label may be 0 if faked up by kernel */ 4951558Srgrimes bbsize = lp->d_bbsize; 4961558Srgrimes sbsize = lp->d_sbsize; 4971558Srgrimes#endif 4981558Srgrimes oldpartition = *pp; 4991558Srgrimes realsectorsize = sectorsize; 5001558Srgrimes if (sectorsize != DEV_BSIZE) { /* XXX */ 50120061Ssos int secperblk = sectorsize / DEV_BSIZE; 50220061Ssos 50320061Ssos sectorsize = DEV_BSIZE; 50420061Ssos nsectors *= secperblk; 50520061Ssos nphyssectors *= secperblk; 50620061Ssos secpercyl *= secperblk; 50720061Ssos fssize *= secperblk; 50820061Ssos pp->p_size *= secperblk; 50920061Ssos } 5101558Srgrimes mkfs(pp, special, fsi, fso); 5111558Srgrimes if (realsectorsize != DEV_BSIZE) 51220061Ssos pp->p_size /= realsectorsize /DEV_BSIZE; 51337775Sbde if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 51437775Sbde rewritelabel(special, fso, lp); 5151558Srgrimes if (!Nflag) 5161558Srgrimes close(fso); 5171558Srgrimes close(fsi); 5181558Srgrimes exit(0); 5191558Srgrimes} 5201558Srgrimes 5211558Srgrimes#ifdef COMPAT 52281911Skrisconst char lmsg[] = "%s: can't read disk label; disk type must be specified"; 5231558Srgrimes#else 52481911Skrisconst char lmsg[] = "%s: can't read disk label"; 5251558Srgrimes#endif 5261558Srgrimes 5271558Srgrimesstruct disklabel * 52892711Siedowsegetdisklabel(char *s, int fd) 5291558Srgrimes{ 5301558Srgrimes static struct disklabel lab; 5311558Srgrimes 5321558Srgrimes if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 5331558Srgrimes#ifdef COMPAT 5341558Srgrimes if (disktype) { 5351558Srgrimes struct disklabel *lp, *getdiskbyname(); 5361558Srgrimes 5371558Srgrimes unlabeled++; 5381558Srgrimes lp = getdiskbyname(disktype); 5391558Srgrimes if (lp == NULL) 5401558Srgrimes fatal("%s: unknown disk type", disktype); 5411558Srgrimes return (lp); 5421558Srgrimes } 5431558Srgrimes#endif 5441558Srgrimes warn("ioctl (GDINFO)"); 5451558Srgrimes fatal(lmsg, s); 5461558Srgrimes } 5471558Srgrimes return (&lab); 5481558Srgrimes} 5491558Srgrimes 55077420Sphkvoid 55192711Siedowserewritelabel(char *s, int fd, struct disklabel *lp) 55237775Sbde{ 55337775Sbde#ifdef COMPAT 55437775Sbde if (unlabeled) 55537775Sbde return; 55637775Sbde#endif 55737775Sbde lp->d_checksum = 0; 55837775Sbde lp->d_checksum = dkcksum(lp); 55937775Sbde if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 56037775Sbde warn("ioctl (WDINFO)"); 56137775Sbde fatal("%s: can't rewrite disk label", s); 56237775Sbde } 56337775Sbde} 56437775Sbde 5651558Srgrimes/*VARARGS*/ 5661558Srgrimesvoid 5671558Srgrimesfatal(const char *fmt, ...) 5681558Srgrimes{ 5691558Srgrimes va_list ap; 5701558Srgrimes 5711558Srgrimes va_start(ap, fmt); 5721558Srgrimes if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 5731558Srgrimes openlog(progname, LOG_CONS, LOG_DAEMON); 5741558Srgrimes vsyslog(LOG_ERR, fmt, ap); 5751558Srgrimes closelog(); 57685860Sphk } else 5771558Srgrimes vwarnx(fmt, ap); 5781558Srgrimes va_end(ap); 5791558Srgrimes exit(1); 5801558Srgrimes /*NOTREACHED*/ 5811558Srgrimes} 5821558Srgrimes 58337664Scharnierstatic void 5841558Srgrimesusage() 5851558Srgrimes{ 58677420Sphk fprintf(stderr, 58777420Sphk "usage: %s [ -fsoptions ] special-device%s\n", 58877420Sphk progname, 5891558Srgrimes#ifdef COMPAT 59077420Sphk " [device-type]"); 5911558Srgrimes#else 59277420Sphk ""); 5931558Srgrimes#endif 5941558Srgrimes fprintf(stderr, "where fsoptions are:\n"); 5951558Srgrimes fprintf(stderr, 5961558Srgrimes "\t-N do not create file system, just print out parameters\n"); 5971558Srgrimes fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 5981558Srgrimes fprintf(stderr, "\t-S sector size\n"); 5991558Srgrimes#ifdef COMPAT 6001558Srgrimes fprintf(stderr, "\t-T disktype\n"); 6011558Srgrimes#endif 60275078Sobrien fprintf(stderr, "\t-U enable soft updates\n"); 6031558Srgrimes fprintf(stderr, "\t-a maximum contiguous blocks\n"); 6041558Srgrimes fprintf(stderr, "\t-b block size\n"); 6051558Srgrimes fprintf(stderr, "\t-c cylinders/group\n"); 6061558Srgrimes fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 6071558Srgrimes fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 6081558Srgrimes fprintf(stderr, "\t-f frag size\n"); 60975377Smckusick fprintf(stderr, "\t-g average file size\n"); 61075377Smckusick fprintf(stderr, "\t-h average files per directory\n"); 6111558Srgrimes fprintf(stderr, "\t-i number of bytes per inode\n"); 6121558Srgrimes fprintf(stderr, "\t-k sector 0 skew, per track\n"); 6131558Srgrimes fprintf(stderr, "\t-l hardware sector interleave\n"); 6141558Srgrimes fprintf(stderr, "\t-m minimum free space %%\n"); 6151558Srgrimes fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 6161558Srgrimes fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 6171558Srgrimes fprintf(stderr, "\t-p spare sectors per track\n"); 6181558Srgrimes fprintf(stderr, "\t-s file system size (sectors)\n"); 6191558Srgrimes fprintf(stderr, "\t-r revolutions/minute\n"); 6201558Srgrimes fprintf(stderr, "\t-t tracks/cylinder\n"); 6211558Srgrimes fprintf(stderr, "\t-u sectors/track\n"); 62239791Sgrog fprintf(stderr, 62339791Sgrog "\t-v do not attempt to determine partition name from device name\n"); 6241558Srgrimes fprintf(stderr, "\t-x spare sectors per cylinder\n"); 6251558Srgrimes exit(1); 6261558Srgrimes} 627