c6d7884ffd
if there is no command line option and the disklabel gives 0 as the size. The default used to be 8k, not the default is picked depending on the file system size. FS < 20M gets 4k, <1G get 8k, and >1G get 16k. The 16k default was suggested by lukem which FreeBSD is using.
908 lines
24 KiB
C
908 lines
24 KiB
C
/* $NetBSD: newfs.c,v 1.53 2001/12/30 18:49:28 augustss Exp $ */
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/*
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* Copyright (c) 1983, 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95";
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#else
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__RCSID("$NetBSD: newfs.c,v 1.53 2001/12/30 18:49:28 augustss Exp $");
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#endif
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#endif /* not lint */
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/*
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* newfs: friendly front end to mkfs
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*/
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/disklabel.h>
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#include <sys/file.h>
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#include <sys/mount.h>
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#include <sys/sysctl.h>
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#include <sys/wait.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ffs/fs.h>
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#include <ctype.h>
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#include <disktab.h>
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#include <errno.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syslog.h>
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#include <unistd.h>
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#include <signal.h>
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#include <err.h>
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#include <util.h>
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#include "mntopts.h"
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#include "dkcksum.h"
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#include "extern.h"
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struct mntopt mopts[] = {
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MOPT_STDOPTS,
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MOPT_ASYNC,
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MOPT_UPDATE,
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MOPT_NOATIME,
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{ NULL },
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};
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static struct disklabel *getdisklabel(char *, int);
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static void rewritelabel(char *, int, struct disklabel *);
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static int strsuftoi(const char *, const char *, int, int);
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static void usage(void);
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int main(int, char *[]);
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#define COMPAT /* allow non-labeled disks */
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/*
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* The following two constants set the default block and fragment sizes.
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* Both constants must be a power of 2 and meet the following constraints:
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* MINBSIZE <= DESBLKSIZE <= MAXBSIZE
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* sectorsize <= DESFRAGSIZE <= DESBLKSIZE
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* DESBLKSIZE / DESFRAGSIZE <= 8
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*/
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/*
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* For file systems smaller than SMALL_FSSIZE we use the S_DFL_* defaults,
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* otherwise if less than MEDIUM_FSSIZE use M_DFL_*, otherwise use
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* L_DFL_*.
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*/
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#define SMALL_FSSIZE (20*1024*2)
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#define S_DFL_FRAGSIZE 512
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#define S_DFL_BLKSIZE 4096
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#define MEDIUM_FSSIZE (1000*1024*2)
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#define M_DFL_FRAGSIZE 1024
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#define M_DFL_BLKSIZE 8192
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#define L_DFL_FRAGSIZE 2048
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#define L_DFL_BLKSIZE 16384
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/*
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* Default sector size.
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*/
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#define DFL_SECSIZE 512
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/*
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* Cylinder groups may have up to many cylinders. The actual
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* number used depends upon how much information can be stored
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* on a single cylinder. The default is to use 16 cylinders
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* per group.
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*/
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#define DESCPG 65536 /* desired fs_cpg ("infinity") */
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/*
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* ROTDELAY gives the minimum number of milliseconds to initiate
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* another disk transfer on the same cylinder. It is used in
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* determining the rotationally optimal layout for disk blocks
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* within a file; the default of fs_rotdelay is 0ms.
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*/
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#define ROTDELAY 0
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/*
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* MAXBLKPG determines the maximum number of data blocks which are
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* placed in a single cylinder group. The default is one indirect
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* block worth of data blocks.
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*/
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#define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t))
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/*
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* Each file system has a number of inodes statically allocated.
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* We allocate one inode slot per NFPI fragments, expecting this
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* to be far more than we will ever need.
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*/
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#define NFPI 4
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/*
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* For each cylinder we keep track of the availability of blocks at different
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* rotational positions, so that we can lay out the data to be picked
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* up with minimum rotational latency. NRPOS is the default number of
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* rotational positions that we distinguish. With NRPOS of 8 the resolution
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* of our summary information is 2ms for a typical 3600 rpm drive. Caching
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* and zoning pretty much defeats rotational optimization, so we now use a
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* default of 1.
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*/
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#define NRPOS 1 /* number distinct rotational positions */
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int mfs; /* run as the memory based filesystem */
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int Nflag; /* run without writing file system */
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int Oflag; /* format as an 4.3BSD file system */
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int fssize; /* file system size */
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int ntracks; /* # tracks/cylinder */
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int nsectors; /* # sectors/track */
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int nphyssectors; /* # sectors/track including spares */
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int secpercyl; /* sectors per cylinder */
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int trackspares = -1; /* spare sectors per track */
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int cylspares = -1; /* spare sectors per cylinder */
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int sectorsize; /* bytes/sector */
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int rpm; /* revolutions/minute of drive */
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int interleave; /* hardware sector interleave */
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int trackskew = -1; /* sector 0 skew, per track */
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int fsize = 0; /* fragment size */
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int bsize = 0; /* block size */
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int cpg = DESCPG; /* cylinders/cylinder group */
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int cpgflg; /* cylinders/cylinder group flag was given */
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int minfree = MINFREE; /* free space threshold */
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int opt = DEFAULTOPT; /* optimization preference (space or time) */
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int density; /* number of bytes per inode */
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int maxcontig = 0; /* max contiguous blocks to allocate */
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int rotdelay = ROTDELAY; /* rotational delay between blocks */
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int maxbpg; /* maximum blocks per file in a cyl group */
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int nrpos = NRPOS; /* # of distinguished rotational positions */
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int avgfilesize = AVFILESIZ;/* expected average file size */
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int avgfpdir = AFPDIR; /* expected number of files per directory */
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int bbsize = BBSIZE; /* boot block size */
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int sbsize = SBSIZE; /* superblock size */
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int mntflags = MNT_ASYNC; /* flags to be passed to mount */
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u_long memleft; /* virtual memory available */
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caddr_t membase; /* start address of memory based filesystem */
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int needswap; /* Filesystem not in native byte order */
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#ifdef COMPAT
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char *disktype;
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int unlabeled;
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#endif
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char device[MAXPATHLEN];
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int
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main(int argc, char *argv[])
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{
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struct partition *pp;
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struct disklabel *lp;
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struct disklabel mfsfakelabel;
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struct partition oldpartition;
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struct statfs *mp;
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int ch, fsi, fso, len, maxpartitions, n, Fflag, Zflag;
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char *cp, *endp, *s1, *s2, *special;
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const char *opstring;
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long long llsize;
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int dfl_fragsize, dfl_blksize;
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#ifdef MFS
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char mountfromname[100];
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pid_t pid, res;
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struct statfs sf;
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int status;
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#endif
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cp = NULL;
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fsi = fso = -1;
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Fflag = Zflag = 0;
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if (strstr(getprogname(), "mfs")) {
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mfs = 1;
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Nflag++;
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}
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maxpartitions = getmaxpartitions();
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if (maxpartitions > 26)
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errx(1, "insane maxpartitions value %d", maxpartitions);
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opstring = mfs ?
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"NT:a:b:c:d:e:f:g:h:i:m:o:s:" :
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"B:FNOS:T:Za:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:x:";
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while ((ch = getopt(argc, argv, opstring)) != -1)
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switch (ch) {
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case 'B':
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if (strcmp(optarg, "be") == 0) {
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#if BYTE_ORDER == LITTLE_ENDIAN
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needswap = 1;
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#endif
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} else if (strcmp(optarg, "le") == 0) {
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#if BYTE_ORDER == BIG_ENDIAN
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needswap = 1;
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#endif
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} else
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usage();
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break;
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case 'F':
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Fflag = 1;
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break;
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case 'N':
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Nflag = 1;
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break;
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case 'O':
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Oflag = 1;
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break;
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case 'S':
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sectorsize = strsuftoi("sector size",
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optarg, 1, INT_MAX);
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break;
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#ifdef COMPAT
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case 'T':
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disktype = optarg;
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break;
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#endif
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case 'Z':
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Zflag = 1;
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break;
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case 'a':
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maxcontig = strsuftoi("maximum contiguous blocks",
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optarg, 1, INT_MAX);
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break;
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case 'b':
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bsize = strsuftoi("block size",
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optarg, MINBSIZE, MAXBSIZE);
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break;
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case 'c':
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cpg = strsuftoi("cylinders per group",
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optarg, 1, INT_MAX);
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cpgflg++;
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break;
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case 'd':
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rotdelay = strsuftoi("rotational delay",
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optarg, 0, INT_MAX);
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break;
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case 'e':
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maxbpg = strsuftoi(
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"blocks per file in a cylinder group",
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optarg, 1, INT_MAX);
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break;
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case 'f':
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fsize = strsuftoi("fragment size",
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optarg, 1, MAXBSIZE);
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break;
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case 'g':
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avgfilesize = strsuftoi("average file size",
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optarg, 1, INT_MAX);
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break;
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case 'h':
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avgfpdir = strsuftoi("expected files per directory",
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optarg, 1, INT_MAX);
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break;
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case 'i':
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density = strsuftoi("bytes per inode",
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optarg, 1, INT_MAX);
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break;
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case 'k':
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trackskew = strsuftoi("track skew",
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optarg, 0, INT_MAX);
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break;
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case 'l':
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interleave = strsuftoi("interleave",
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optarg, 1, INT_MAX);
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break;
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case 'm':
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minfree = strsuftoi("free space %",
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optarg, 0, 99);
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break;
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case 'n':
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nrpos = strsuftoi("rotational layout count",
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optarg, 1, INT_MAX);
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break;
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case 'o':
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if (mfs)
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getmntopts(optarg, mopts, &mntflags, 0);
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else {
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if (strcmp(optarg, "space") == 0)
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opt = FS_OPTSPACE;
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else if (strcmp(optarg, "time") == 0)
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opt = FS_OPTTIME;
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else
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errx(1, "%s %s",
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"unknown optimization preference: ",
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"use `space' or `time'.");
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}
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break;
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case 'p':
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trackspares = strsuftoi("spare sectors per track",
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optarg, 0, INT_MAX);
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break;
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case 'r':
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rpm = strsuftoi("revolutions per minute",
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optarg, 1, INT_MAX);
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break;
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case 's':
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llsize = strtoll(optarg, &endp, 10);
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if (endp[0] != '\0' && endp[1] != '\0')
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llsize = -1;
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else {
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int ssiz;
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ssiz = (sectorsize ? sectorsize : DFL_SECSIZE);
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switch (tolower((unsigned char)endp[0])) {
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case 'b':
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llsize /= ssiz;
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break;
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case 'k':
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llsize *= 1024 / ssiz;
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break;
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case 'm':
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llsize *= 1024 * 1024 / ssiz;
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break;
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case 'g':
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llsize *= 1024 * 1024 * 1024 / ssiz;
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break;
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case '\0':
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case 's':
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break;
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default:
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llsize = -1;
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}
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}
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if (llsize > INT_MAX)
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errx(1, "file system size `%s' is too large.",
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optarg);
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if (llsize <= 0)
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errx(1,
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"`%s' is not a valid number for file system size.",
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optarg);
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fssize = (int)llsize;
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break;
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case 't':
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ntracks = strsuftoi("total tracks",
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optarg, 1, INT_MAX);
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break;
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case 'u':
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nsectors = strsuftoi("sectors per track",
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optarg, 1, INT_MAX);
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break;
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case 'x':
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cylspares = strsuftoi("spare sectors per cylinder",
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optarg, 0, INT_MAX);
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc != 2 && (mfs || argc != 1))
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usage();
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special = argv[0];
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if (Fflag || mfs) {
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/*
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* it's a file system image or an MFS, so fake up a label.
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* XXX
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*/
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if (!sectorsize)
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sectorsize = DFL_SECSIZE;
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if (Fflag && !Nflag) { /* creating image in a regular file */
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if (fssize == 0)
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errx(1, "need to specify size when using -F");
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fso = open(special, O_RDWR | O_CREAT | O_TRUNC, 0777);
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if (fso == -1)
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err(1, "can't open file %s", special);
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if ((fsi = dup(fso)) == -1)
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err(1, "can't dup(2) image fd");
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/* XXXLUKEM: only ftruncate() regular files ? */
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if (ftruncate(fso, (off_t)fssize * sectorsize) == -1)
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err(1, "can't resize %s to %d",
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special, fssize);
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if (Zflag) { /* pre-zero the file */
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char *buf;
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int bufsize, i;
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off_t bufrem;
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struct statfs sfs;
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if (fstatfs(fso, &sfs) == -1) {
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warn("can't fstatfs `%s'", special);
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bufsize = 8192;
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} else
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bufsize = sfs.f_iosize;
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if ((buf = calloc(1, bufsize)) == NULL)
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err(1, "can't malloc buffer of %d",
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bufsize);
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bufrem = fssize * sectorsize;
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printf(
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"Creating file system image in `%s', size %lld bytes, in %d byte chunks.\n",
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special, (long long)bufrem, bufsize);
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while (bufrem > 0) {
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i = write(fso, buf,
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MIN(bufsize, bufrem));
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if (i == -1)
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err(1, "writing image");
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bufrem -= i;
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}
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}
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}
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memset(&mfsfakelabel, 0, sizeof(mfsfakelabel));
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mfsfakelabel.d_secsize = sectorsize;
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mfsfakelabel.d_nsectors = 64; /* these 3 add up to 16MB */
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mfsfakelabel.d_ntracks = 16;
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mfsfakelabel.d_ncylinders = 16;
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mfsfakelabel.d_secpercyl =
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mfsfakelabel.d_nsectors * mfsfakelabel.d_ntracks;
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mfsfakelabel.d_secperunit =
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mfsfakelabel.d_ncylinders * mfsfakelabel.d_secpercyl;
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mfsfakelabel.d_rpm = 10000;
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mfsfakelabel.d_interleave = 1;
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mfsfakelabel.d_npartitions = 1;
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mfsfakelabel.d_partitions[0].p_size = mfsfakelabel.d_secperunit;
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mfsfakelabel.d_partitions[0].p_fsize = 1024;
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mfsfakelabel.d_partitions[0].p_frag = 8;
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mfsfakelabel.d_partitions[0].p_cpg = 16;
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lp = &mfsfakelabel;
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pp = &mfsfakelabel.d_partitions[0];
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} else { /* !Fflag && !mfs */
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fsi = opendisk(special, O_RDONLY, device, sizeof(device), 0);
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special = device;
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if (fsi < 0)
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err(1, "%s: open for read", special);
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if (Nflag) {
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fso = -1;
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} else {
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fso = open(special, O_WRONLY);
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if (fso < 0)
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err(1, "%s: open for write", special);
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|
|
/* Bail if target special is mounted */
|
|
n = getmntinfo(&mp, MNT_NOWAIT);
|
|
if (n == 0)
|
|
err(1, "%s: getmntinfo", special);
|
|
|
|
len = sizeof(_PATH_DEV) - 1;
|
|
s1 = special;
|
|
if (strncmp(_PATH_DEV, s1, len) == 0)
|
|
s1 += len;
|
|
|
|
while (--n >= 0) {
|
|
s2 = mp->f_mntfromname;
|
|
if (strncmp(_PATH_DEV, s2, len) == 0) {
|
|
s2 += len - 1;
|
|
*s2 = 'r';
|
|
}
|
|
if (strcmp(s1, s2) == 0 ||
|
|
strcmp(s1, &s2[1]) == 0)
|
|
errx(1, "%s is mounted on %s",
|
|
special, mp->f_mntonname);
|
|
++mp;
|
|
}
|
|
}
|
|
cp = strchr(argv[0], '\0') - 1;
|
|
if (cp == 0 || ((*cp < 'a' || *cp > ('a' + maxpartitions - 1))
|
|
&& !isdigit(*cp)))
|
|
errx(1, "can't figure out file system partition");
|
|
#ifdef COMPAT
|
|
if (disktype == NULL)
|
|
disktype = argv[1];
|
|
#endif
|
|
lp = getdisklabel(special, fsi);
|
|
if (isdigit(*cp))
|
|
pp = &lp->d_partitions[0];
|
|
else
|
|
pp = &lp->d_partitions[*cp - 'a'];
|
|
if (pp->p_size == 0)
|
|
errx(1, "`%c' partition is unavailable", *cp);
|
|
if (pp->p_fstype == FS_BOOT)
|
|
errx(1, "`%c' partition overlaps boot program", *cp);
|
|
} /* !Fflag && !mfs */
|
|
|
|
if (fssize == 0)
|
|
fssize = pp->p_size;
|
|
if (fssize > pp->p_size && !mfs && !Fflag)
|
|
errx(1, "maximum file system size on the `%c' partition is %d",
|
|
*cp, pp->p_size);
|
|
if (rpm == 0) {
|
|
rpm = lp->d_rpm;
|
|
if (rpm <= 0)
|
|
rpm = 3600;
|
|
}
|
|
if (ntracks == 0) {
|
|
ntracks = lp->d_ntracks;
|
|
if (ntracks <= 0)
|
|
errx(1, "no default #tracks");
|
|
}
|
|
if (nsectors == 0) {
|
|
nsectors = lp->d_nsectors;
|
|
if (nsectors <= 0)
|
|
errx(1, "no default #sectors/track");
|
|
}
|
|
if (sectorsize == 0) {
|
|
sectorsize = lp->d_secsize;
|
|
if (sectorsize <= 0)
|
|
errx(1, "no default sector size");
|
|
}
|
|
if (trackskew == -1) {
|
|
trackskew = lp->d_trackskew;
|
|
if (trackskew < 0)
|
|
trackskew = 0;
|
|
}
|
|
if (interleave == 0) {
|
|
interleave = lp->d_interleave;
|
|
if (interleave <= 0)
|
|
interleave = 1;
|
|
}
|
|
|
|
if (fssize < SMALL_FSSIZE) {
|
|
dfl_fragsize = S_DFL_FRAGSIZE;
|
|
dfl_blksize = S_DFL_BLKSIZE;
|
|
} else if (fssize < MEDIUM_FSSIZE) {
|
|
dfl_fragsize = M_DFL_FRAGSIZE;
|
|
dfl_blksize = M_DFL_BLKSIZE;
|
|
} else {
|
|
dfl_fragsize = L_DFL_FRAGSIZE;
|
|
dfl_blksize = L_DFL_BLKSIZE;
|
|
}
|
|
|
|
if (fsize == 0) {
|
|
fsize = pp->p_fsize;
|
|
if (fsize <= 0)
|
|
fsize = MAX(dfl_fragsize, lp->d_secsize);
|
|
}
|
|
if (bsize == 0) {
|
|
bsize = pp->p_frag * pp->p_fsize;
|
|
if (bsize <= 0)
|
|
bsize = MIN(dfl_blksize, 8 * fsize);
|
|
}
|
|
/*
|
|
* Maxcontig sets the default for the maximum number of blocks
|
|
* that may be allocated sequentially. With filesystem clustering
|
|
* it is possible to allocate contiguous blocks up to the maximum
|
|
* transfer size permitted by the controller or buffering.
|
|
*/
|
|
if (maxcontig == 0)
|
|
maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize);
|
|
if (density == 0)
|
|
density = NFPI * fsize;
|
|
if (minfree < MINFREE && opt != FS_OPTSPACE) {
|
|
warnx("%s %s %d%%", "Warning: changing optimization to space",
|
|
"because minfree is less than", MINFREE);
|
|
opt = FS_OPTSPACE;
|
|
}
|
|
if (trackspares == -1) {
|
|
trackspares = lp->d_sparespertrack;
|
|
if (trackspares < 0)
|
|
trackspares = 0;
|
|
}
|
|
nphyssectors = nsectors + trackspares;
|
|
if (cylspares == -1) {
|
|
cylspares = lp->d_sparespercyl;
|
|
if (cylspares < 0)
|
|
cylspares = 0;
|
|
}
|
|
secpercyl = nsectors * ntracks - cylspares;
|
|
if (secpercyl != lp->d_secpercyl)
|
|
warnx("%s (%d) %s (%u)\n",
|
|
"Warning: calculated sectors per cylinder", secpercyl,
|
|
"disagrees with disk label", lp->d_secpercyl);
|
|
if (maxbpg == 0)
|
|
maxbpg = MAXBLKPG(bsize);
|
|
#ifdef notdef /* label may be 0 if faked up by kernel */
|
|
bbsize = lp->d_bbsize;
|
|
sbsize = lp->d_sbsize;
|
|
#endif
|
|
oldpartition = *pp;
|
|
mkfs(pp, special, fsi, fso);
|
|
if (!Nflag && memcmp(pp, &oldpartition, sizeof(oldpartition)) && !Fflag)
|
|
rewritelabel(special, fso, lp);
|
|
if (!Nflag)
|
|
close(fso);
|
|
close(fsi);
|
|
#ifdef MFS
|
|
if (mfs) {
|
|
struct mfs_args args;
|
|
|
|
switch (pid = fork()) {
|
|
case -1:
|
|
perror("mfs");
|
|
exit(10);
|
|
case 0:
|
|
(void)snprintf(mountfromname, sizeof(mountfromname),
|
|
"mfs:%d", getpid());
|
|
break;
|
|
default:
|
|
(void)snprintf(mountfromname, sizeof(mountfromname),
|
|
"mfs:%d", pid);
|
|
for (;;) {
|
|
/*
|
|
* spin until the mount succeeds
|
|
* or the child exits
|
|
*/
|
|
usleep(1);
|
|
|
|
/*
|
|
* XXX Here is a race condition: another process
|
|
* can mount a filesystem which hides our
|
|
* ramdisk before we see the success.
|
|
*/
|
|
if (statfs(argv[1], &sf) < 0)
|
|
err(88, "statfs %s", argv[1]);
|
|
if (!strcmp(sf.f_mntfromname, mountfromname) &&
|
|
!strncmp(sf.f_mntonname, argv[1],
|
|
MNAMELEN) &&
|
|
!strcmp(sf.f_fstypename, "mfs"))
|
|
exit(0);
|
|
|
|
res = waitpid(pid, &status, WNOHANG);
|
|
if (res == -1)
|
|
err(11, "waitpid");
|
|
if (res != pid)
|
|
continue;
|
|
if (WIFEXITED(status)) {
|
|
if (WEXITSTATUS(status) == 0)
|
|
exit(0);
|
|
errx(1, "%s: mount: %s", argv[1],
|
|
strerror(WEXITSTATUS(status)));
|
|
} else
|
|
errx(11, "abnormal termination");
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
(void) setsid();
|
|
(void) close(0);
|
|
(void) close(1);
|
|
(void) close(2);
|
|
(void) chdir("/");
|
|
|
|
args.fspec = mountfromname;
|
|
args.export.ex_root = -2;
|
|
if (mntflags & MNT_RDONLY)
|
|
args.export.ex_flags = MNT_EXRDONLY;
|
|
else
|
|
args.export.ex_flags = 0;
|
|
args.base = membase;
|
|
args.size = fssize * sectorsize;
|
|
if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0)
|
|
exit(errno); /* parent prints message */
|
|
}
|
|
#endif
|
|
exit(0);
|
|
}
|
|
|
|
#ifdef COMPAT
|
|
const char lmsg[] = "%s: can't read disk label; disk type must be specified";
|
|
#else
|
|
const char lmsg[] = "%s: can't read disk label";
|
|
#endif
|
|
|
|
static struct disklabel *
|
|
getdisklabel(char *s, volatile int fd)
|
|
/* XXX why is fs volatile?! */
|
|
{
|
|
static struct disklabel lab;
|
|
|
|
if (ioctl(fd, DIOCGDINFO, &lab) < 0) {
|
|
#ifdef COMPAT
|
|
if (disktype) {
|
|
struct disklabel *lp;
|
|
|
|
unlabeled++;
|
|
lp = getdiskbyname(disktype);
|
|
if (lp == NULL)
|
|
errx(1, "%s: unknown disk type", disktype);
|
|
return (lp);
|
|
}
|
|
#endif
|
|
warn("ioctl (GDINFO)");
|
|
errx(1, lmsg, s);
|
|
}
|
|
return (&lab);
|
|
}
|
|
|
|
static void
|
|
rewritelabel(char *s, volatile int fd, struct disklabel *lp)
|
|
/* XXX why is fd volatile?! */
|
|
{
|
|
#ifdef COMPAT
|
|
if (unlabeled)
|
|
return;
|
|
#endif
|
|
lp->d_checksum = 0;
|
|
lp->d_checksum = dkcksum(lp);
|
|
if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) {
|
|
warn("ioctl (WDINFO)");
|
|
errx(1, "%s: can't rewrite disk label", s);
|
|
}
|
|
#if __vax__
|
|
if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) {
|
|
int i;
|
|
int cfd;
|
|
daddr_t alt;
|
|
char specname[64];
|
|
char blk[1024];
|
|
char *cp;
|
|
|
|
/*
|
|
* Make name for 'c' partition.
|
|
*/
|
|
strcpy(specname, s);
|
|
cp = specname + strlen(specname) - 1;
|
|
if (!isdigit(*cp))
|
|
*cp = 'c';
|
|
cfd = open(specname, O_WRONLY);
|
|
if (cfd < 0)
|
|
err(1, "%s: open", specname);
|
|
memset(blk, 0, sizeof(blk));
|
|
*(struct disklabel *)(blk + LABELOFFSET) = *lp;
|
|
alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors;
|
|
for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) {
|
|
off_t offset;
|
|
|
|
offset = alt + i;
|
|
offset *= lp->d_secsize;
|
|
if (lseek(cfd, offset, SEEK_SET) == -1)
|
|
err(1, "lseek to badsector area: ");
|
|
if (write(cfd, blk, lp->d_secsize) < lp->d_secsize)
|
|
warn("alternate label %d write", i/2);
|
|
}
|
|
close(cfd);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
strsuftoi(const char *desc, const char *arg, int min, int max)
|
|
{
|
|
long long result;
|
|
char *ep;
|
|
|
|
errno = 0;
|
|
result = strtoll(arg, &ep, 10);
|
|
if (ep[0] != '\0' && ep[1] != '\0')
|
|
errx(1, "%s `%s' is not a valid number.", desc, arg);
|
|
switch (tolower((unsigned char)ep[0])) {
|
|
case '\0':
|
|
case 'b':
|
|
break;
|
|
case 'k':
|
|
result <<= 10;
|
|
break;
|
|
case 'm':
|
|
result <<= 20;
|
|
break;
|
|
case 'g':
|
|
result <<= 30;
|
|
break;
|
|
default:
|
|
errx(1, "`%s' is not a valid suffix for %s.", ep, desc);
|
|
}
|
|
if (result < min)
|
|
errx(1, "%s `%s' (%lld) is less than minimum (%d).",
|
|
desc, arg, result, min);
|
|
if (result > max)
|
|
errx(1, "%s `%s' (%lld) is greater than maximum (%d).",
|
|
desc, arg, result, max);
|
|
return ((int)result);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
|
|
if (mfs) {
|
|
fprintf(stderr,
|
|
"usage: %s [ fsoptions ] special-device mount-point\n",
|
|
getprogname());
|
|
} else
|
|
fprintf(stderr,
|
|
"usage: %s [ fsoptions ] special-device%s\n",
|
|
getprogname(),
|
|
#ifdef COMPAT
|
|
" [device-type]");
|
|
#else
|
|
"");
|
|
#endif
|
|
fprintf(stderr, "where fsoptions are:\n");
|
|
if (!mfs) {
|
|
fprintf(stderr,
|
|
"\t-B byteorder\tbyte order (`be' or `le')\n");
|
|
fprintf(stderr,
|
|
"\t-F\t\tcreate file system image in regular file\n");
|
|
}
|
|
fprintf(stderr, "\t-N\t\tdo not create file system, "
|
|
"just print out parameters\n");
|
|
if (!mfs) {
|
|
fprintf(stderr,
|
|
"\t-O\t\tcreate a 4.3BSD format filesystem\n");
|
|
fprintf(stderr,
|
|
"\t-S secsize\tsector size\n");
|
|
}
|
|
#ifdef COMPAT
|
|
if (!mfs)
|
|
fprintf(stderr,
|
|
"\t-T disktype\tdisk type\n");
|
|
#endif
|
|
if (!mfs)
|
|
fprintf(stderr,
|
|
"\t-Z\t\tpre-zero the image file (with -F)\n");
|
|
fprintf(stderr, "\t-a maxcontig\tmaximum contiguous blocks\n");
|
|
fprintf(stderr, "\t-b bsize\tblock size\n");
|
|
fprintf(stderr, "\t-c cpg\t\tcylinders/group\n");
|
|
fprintf(stderr, "\t-d rotdelay\trotational delay between "
|
|
"contiguous blocks\n");
|
|
fprintf(stderr, "\t-e maxbpg\tmaximum blocks per file "
|
|
"in a cylinder group\n");
|
|
fprintf(stderr, "\t-f fsize\tfragment size\n");
|
|
fprintf(stderr, "\t-g avgfilesize\taverage file size\n");
|
|
fprintf(stderr, "\t-h avgfpdir\taverage files per directory\n");
|
|
fprintf(stderr, "\t-i density\tnumber of bytes per inode\n");
|
|
if (!mfs) {
|
|
fprintf(stderr,
|
|
"\t-k trackskew\tsector 0 skew, per track\n");
|
|
fprintf(stderr,
|
|
"\t-l interleave\thardware sector interleave\n");
|
|
}
|
|
fprintf(stderr, "\t-m minfree\tminimum free space %%\n");
|
|
if (!mfs)
|
|
fprintf(stderr,
|
|
"\t-n nrpos\tnumber of distinguished "
|
|
"rotational positions\n");
|
|
fprintf(stderr, "\t-o optim\toptimization preference "
|
|
"(`space' or `time')\n");
|
|
if (!mfs)
|
|
fprintf(stderr,
|
|
"\t-p trackspares\tspare sectors per track\n");
|
|
fprintf(stderr, "\t-s fssize\tfile system size (sectors)\n");
|
|
if (!mfs) {
|
|
fprintf(stderr,
|
|
"\t-r rpm\t\trevolutions/minute\n");
|
|
fprintf(stderr,
|
|
"\t-t ntracks\ttracks/cylinder\n");
|
|
fprintf(stderr,
|
|
"\t-u nsectors\tsectors/track\n");
|
|
fprintf(stderr,
|
|
"\t-x cylspares\tspare sectors per cylinder\n");
|
|
}
|
|
exit(1);
|
|
}
|