MOUNT_MSDOS(8) BSD System Manager's Manual MOUNT_MSDOS(8)NAMEmount_msdos — mount an MS-DOS file system
SYNOPSISmount_msdos [-o options] [-u uid] [-g gid] [-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 indi‐
cated 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 MS-DOS 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 sys‐
tem. (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 default mask is taken
from the directory on which the file system is being mounted.
-s Force behaviour to ignore and not generate Win'95 long filenames.
-l Force listing and generation of Win'95 long filenames and sepa‐
rate 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.
-D DOS_codepage
Specify the MS-DOS code page (aka IBM/OEM code page) name used
for file name conversions for DOS names.
SEE ALSOmount(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.
BSD September 12, 2009 BSD
