Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
MOUNT_MSDOS(8)          FreeBSD System Manager's Manual         MOUNT_MSDOS(8)

NAME
     mount_msdos - mount an MS-DOS file system

SYNOPSIS
     mount_msdos [-o options] [-u uid] [-g gid] [-m mask] [-M mask] [-s] [-l]
                 [-9] [-L locale] [-W table] special node

DESCRIPTION
     The mount_msdos command attaches the MS-DOS filesystem residing on the
     device special to the global filesystem namespace at the location
     indicated by node.  This command is normally executed by mount(8) at boot
     time, but can be used by any user to mount an MS-DOS file system on any
     directory that they own (provided, of course, that they have appropriate
     access to the device that contains the file system).

     The options are as follows:

     -o options
             Use the specified mount options, as described in mount(8), or one
             of the MSDOS filesystem-specific options shortnames, longnames or
             nowin95, all of which can be used to affect Windows name
             translation in the underlying filesystem.

     -u uid  Set the owner of the files in the file system to uid.  The
             default owner is the owner of the directory on which the file
             system is being mounted.

     -g gid  Set the group of the files in the file system to gid.  The
             default group is the group of the directory on which the file
             system is being mounted.

     -m mask
             Specify the maximum file permissions for files in the file
             system.  (For example, a mask of 755 specifies that, by default,
             the owner should have read, write, and execute permissions for
             files, but others should only have read and execute permissions.
             See chmod(1) for more information about octal file modes.  Only
             the nine low-order bits of mask are used.  The value of -M is
             used if it is supplied and -m is omitted.  The default mask is
             taken from the directory on which the file system is being
             mounted.

     -M mask
             Specify the maximum file permissions for directories in the file
             system.  The value of -m is used if it is supplied and -M is
             omitted.  See the previous option's description for details.

     -s      Force behaviour to ignore and not generate Win'95 long filenames.

     -l      Force listing and generation of Win'95 long filenames and
             separate creation/modification/access dates.

             If neither -s nor -l are given, mount_msdos searches the root
             directory of the filesystem to be mounted for any existing Win'95
             long filenames.  If no such entries are found, but short DOS
             filenames are found, -s is the default.  Otherwise -l is assumed.

     -9      Ignore the special Win'95 directory entries even if deleting or
             renaming a file.  This forces -s.

     -L locale
             Specify locale name used for internal uppercase and lowercase
             conversions for DOS and Win'95 names.  By default ISO 8859-1
             assumed as local character set.

     -W table
             Specify text file with 3 conversion tables:

             1.   Local character set to Unicode conversion table (upper half)
                  for Win'95 long names, 128 Unicode codes separated by 8 per
                  row.  If some code not present in Unicode, use 0x003F code
                  ('?') as replacement.

             2.   DOS to local character set conversion table (upper half) for
                  DOS names, 128 character codes separated by 8 per row.  Code
                  0x3F ('?') used for impossible translations.

             3.   Local character set to DOS conversion table (upper half) for
                  DOS names, 128 character codes separated by 8 per row.  Some
                  codes have special meaning:

                  0x00    character disallowed in DOS file name;

                  0x01    character should be replaced by '_' in DOS file
                          name;

                  0x02    character should be skipped in DOS file name;

             By default ISO 8859-1 assumed as local character set.  If file
             path isn't absolute, /usr/libdata/msdosfs/ prefix prepended.

FILES
     /usr/libdata/msdosfs  default place for character sets conversion tables

SEE ALSO
     mount(2), unmount(2), fstab(5), mount(8)

CAVEATS
     The use of the -9 flag could result in damaged filesystems, albeit the
     damage is in part taken care of by procedures similar to the ones used in
     Win'95.

     FreeBSD 2.1 and earlier versions could not handle cluster sizes larger
     than 16K.  Just mounting an MS-DOS file system could cause corruption to
     any mounted file system.  Cluster sizes larger than 16K are unavoidable
     for file system sizes larger than 1G, and also occur when filesystems
     larger than 1G are shrunk to smaller than 1G using FIPS.

HISTORY
     The mount_msdos utility first appeared in FreeBSD 2.0.  Its predecessor,
     the mount_pcfs utility appeared in FreeBSD 1.0, and was abandoned in
     favor of the more aptly-named mount_msdos.

FreeBSD 11.0-PRERELEASE          April 7, 1994         FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | CAVEATS | HISTORY

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=mount_msdos&sektion=8&manpath=FreeBSD+4.9-RELEASE>

home | help