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

FreeBSD Manual Pages


home | help
MOUNT_MSDOS(8)		  BSD System Manager's Manual		MOUNT_MSDOS(8)

     mount_msdos -- mount an MS-DOS file system

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

     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).

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

     -g	gid  Set the group of the files	in the file system to gid.  The	de-
	     fault group is the	group of the directory on which	the file sys-
	     tem 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 di-
	     rectory 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 as-
	     sumed 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.  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. Code 0x3F ('?') used for im-
		  possible translations.

	     3.	  Local	character set to DOS conversion	table (upper half) for
		  DOS names, 128 character codes. Some codes have special

		  0x00	  character disallowed in DOS file name;

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

		  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.

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

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

     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

     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.

     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 fa-
     vor of the	more aptly-named mount_msdos.

BSD				 April 7, 1994				   BSD


Want to link to this manual page? Use this URL:

home | help