NAME¶
mount_msdosfs —
mount an MS-DOS file
system
SYNOPSIS¶
mount_msdosfs |
[-9ls]
[-D
DOS_codepage]
[-g gid]
[-L
locale]
[-M mask]
[-m mask]
[-o
options]
[-u uid]
[-W table]
special node |
DESCRIPTION¶
The
mount_msdosfs utility attaches the MS-DOS file system
residing on the device
special to the global file system
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). The following MSDOS file
system-specific options are available:
- large
- Support file systems larger than 128 gigabytes at the
expense of 32 bytes of kernel memory for each file on disk. This
memory will not be reclaimed until the file system has been
unmounted.
- longnames
- Force Windows 95 long filenames to be visible.
- shortnames
- Force only the old MS-DOS 8.3 style filenames to be
visible.
- nowin95
- Completely ignore Windows 95 extended file
information.
- -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_msdosfs searches the root directory of the file
system 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 file name conversions for DOS
and Win'95 names. By default ISO 8859-1 assumed as local character
set.
- -D
DOS_codepage
- Specify the MS-DOS code page (aka IBM/OEM code page) name
used for file name conversions for DOS names.
- -W
table
-
This option is
preserved for backward compatibility purpose only, and will be removed in
the future. Please avoid using this option.
Specify text file name with conversion table: iso22dos,
iso72dos, koi2dos,
koi8u2dos.
EXAMPLES¶
To mount a Russian MS-DOS file system located in
/dev/ad1s1:
mount_msdosfs -L ru_RU.KOI8-R -D CP866
/dev/ad1s1 /mnt
To mount a Japanese MS-DOS file system located in
/dev/ad1s1:
mount_msdosfs -L ja_JP.eucJP -D CP932
/dev/ad1s1 /mnt
SEE ALSO¶
mount(2),
unmount(2),
fstab(5),
msdosfs(5),
mount(8)
List of Localized MS Operating Systems:
http://www.microsoft.com/globaldev/reference/oslocversion.mspx.
HISTORY¶
The
mount_msdosfs 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_msdosfs.
The character code conversion routine was added by
Ryuichiro
Imura ⟨imura@ryu16.org⟩ at 2003.
CAVEATS¶
The use of the
-9 flag could result in damaged file systems,
albeit the damage is in part taken care of by procedures similar to the ones
used in Win'95.