1.\" $NetBSD: mount_msdos.8,v 1.13 1998/02/06 05:57:00 perry Exp $ 2.\" 3.\" Copyright (c) 1993,1994 Christopher G. Demetriou 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgment: 16.\" This product includes software developed by Christopher G. Demetriou. 17.\" 3. The name of the author may not be used to endorse or promote products 18.\" derived from this software without specific prior written permission 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30.\" 31.\" $FreeBSD: src/sbin/mount_msdos/mount_msdos.8,v 1.19.2.1 2000/12/08 14:03:59 ru Exp $ 32.\" $DragonFly: src/sbin/mount_msdos/mount_msdos.8,v 1.3 2008/04/29 09:33:41 swildner Exp $ 33.\" 34.Dd April 7, 1994 35.Dt MOUNT_MSDOS 8 36.Os 37.Sh NAME 38.Nm mount_msdos 39.Nd mount an MS-DOS file system 40.Sh SYNOPSIS 41.Nm 42.Op Fl o Ar options 43.Op Fl u Ar uid 44.Op Fl g Ar gid 45.Op Fl m Ar mask 46.Op Fl s 47.Op Fl l 48.Op Fl 9 49.\".Op Fl G 50.Op Fl L Ar locale 51.Op Fl W Ar table 52.Pa special 53.Pa node 54.Sh DESCRIPTION 55The 56.Nm 57command attaches the MS-DOS filesystem residing on 58the device 59.Pa special 60to the global filesystem namespace at the location 61indicated by 62.Pa node . 63This command is normally executed by 64.Xr mount 8 65at boot time, but can be used by any user to mount an 66MS-DOS file system on any directory that they own (provided, 67of course, that they have appropriate access to the device that 68contains the file system). 69.Pp 70The options are as follows: 71.Bl -tag -width Ds 72.It Fl o Ar options 73Use the specified mount 74.Ar options , 75as described in 76.Xr mount 8 , 77or one of the MS-DOS filesystem-specific options 78.Ar shortnames , 79.Ar longnames 80or 81.Ar nowin95 , 82all of which can be used to affect Windows name translation in the 83underlying filesystem. 84.It Fl u Ar uid 85Set the owner of the files in the file system to 86.Ar uid . 87The default owner is the owner of the directory 88on which the file system is being mounted. 89.It Fl g Ar gid 90Set the group of the files in the file system to 91.Ar gid . 92The default group is the group of the directory 93on which the file system is being mounted. 94.It Fl m Ar mask 95Specify the maximum file permissions for files 96in the file system. 97(For example, a 98.Ar mask 99of 100.Li 755 101specifies that, by default, the owner should have 102read, write, and execute permissions for files, but 103others should only have read and execute permissions. 104See 105.Xr chmod 1 106for more information about octal file modes.) 107Only the nine low-order bits of 108.Ar mask 109are used. 110The default 111.Ar mask 112is taken from the 113directory on which the file system is being mounted. 114.It Fl s 115Force behaviour to 116ignore and not generate Win'95 long filenames. 117.It Fl l 118Force listing and generation of 119Win'95 long filenames 120and separate creation/modification/access dates. 121.Pp 122If neither 123.Fl s 124nor 125.Fl l 126are given, 127.Nm 128searches the root directory of the filesystem to 129be mounted for any existing Win'95 long filenames. 130If no such entries are found, but short DOS filenames are found, 131.Fl s 132is the default. 133Otherwise 134.Fl l 135is assumed. 136.It Fl 9 137Ignore the special Win'95 directory entries even 138if deleting or renaming a file. 139This forces 140.Fl s . 141.\".It Fl G 142.\"This option causes the filesystem to be interpreted as an Atari-Gemdos 143.\"filesystem. The differences to the MS-DOS filesystem are minimal and 144.\"limited to the boot block. This option enforces 145.\".Fl s . 146.It Fl L Ar locale 147Specify locale name used for internal uppercase and lowercase conversions 148for DOS and Win'95 names. 149By default ISO 8859-1 assumed as local character set. 150.It Fl W Ar table 151Specify text file with 3 conversion tables: 152.Bl -enum 153.It 154Local character set to Unicode conversion table (upper half) for Win'95 long 155names, 128 Unicode codes separated by 8 per row. 156If some code not present in Unicode, use 1570x003F code ('?') as replacement. 158.It 159DOS to local character set conversion table (upper half) for DOS names, 160128 character codes separated by 8 per row. 161Code 0x3F ('?') used for impossible translations. 162.It 163Local character set to DOS conversion table (upper half) for DOS names, 164128 character codes separated by 8 per row. 165Some codes have special meaning: 166.Bl -hang 167.It 0x00 168character disallowed in DOS file name; 169.It 0x01 170character should be replaced by '_' in DOS file name; 171.It 0x02 172character should be skipped in DOS file name; 173.El 174.El 175.Pp 176By default ISO 8859-1 assumed as local character set. 177If file path isn't absolute, 178.Pa /usr/libdata/msdosfs/ 179prefix prepended. 180.El 181.Sh FILES 182.Bl -tag -width /usr/libdata/msdosfs -compact 183.It Pa /usr/libdata/msdosfs 184default place for character sets conversion tables 185.El 186.Sh SEE ALSO 187.Xr mount 2 , 188.Xr unmount 2 , 189.Xr fstab 5 , 190.Xr mount 8 191.Sh CAVEATS 192The use of the 193.Fl 9 194flag could result in damaged filesystems, 195albeit the damage is in part taken care of by 196procedures similar to the ones used in Win'95. 197.Pp 198.Fx 2.1 199and earlier versions could not handle cluster sizes larger than 16K. 200Just mounting an MS-DOS file system could cause corruption to any 201mounted file system. 202Cluster sizes larger than 16K are unavoidable for file system sizes 203larger than 1G, and also occur when filesystems larger than 1G are 204shrunk to smaller than 1G using FIPS. 205.Sh HISTORY 206The 207.Nm 208utility first appeared in 209.Fx 2.0 . 210Its predecessor, the 211.Nm mount_pcfs 212utility appeared in 213.Fx 1.0 , 214and was abandoned in favor 215of the more aptly-named 216.Nm . 217