mkdosfs(8)           INTERACTIVE UNIX System           mkdosfs(8)



          NAME
               mkdosfs - construct a DOS file system in a UNIX System
               environment

          SYNTAX
               /etc/mkdosfs device_name blocks [:rootdirs] [cluster_size]
               [-p]
               /etc/mkdosfs device_name proto [cluster_size] [-p]

          DESCRIPTION
               The mkdosfs program constructs a DOS file system on a UNIX
               System by writing on the device_name.  The device_name may
               be a block special device (diskette or fixed disk) or a UNIX
               System file.  The number of blocks specifies the number of
               (512 byte) sectors in the file system. mkdosfs builds a file
               system with a root directory and includes the prototype
               files if proto is found on the command line.

               The optional arguments allow for customization of the file
               system to fit the needs of the user.  rootdirs specifies the
               number of root directory entries (the default is 128 on a
               fixed disk and follows DOS conventions on diskettes).
               cluster_size specifies the number of (512 byte) sectors in a
               cluster (the default is 1 on a fixed disk and follows DOS
               conventions on diskettes).

               If -p is specified, the IBM PC-DOS algorithm for determining
               the size of a DOS FAT (File Allocation Table) entry will be
               used instead of the default MS-DOS algorithm.  This only
               applies to DOS file systems created on fixed disks.  VP/ix
               users should use the default (no -p) algorithm.

               If device_name is a UNIX System file, the DOS file system
               created in that file will be suitable for later use on fixed
               disks and RAM disks.  It will not work on a diskette.

               When using mkdosfs on a diskette, the diskette must already
               be formatted.

               The following examples create DOS file systems on diskettes
               that will be compatible with MS-DOS and PC-DOS systems:

                    360K:     mkdosfs /dev/dsk/f0d9dt 720
                    1.2MB:  mkdosfs /dev/dsk/f0q15dt 2400

          SEE ALSO
               mkfs(1M).

          ADDED VALUE
               This entry, supplied by INTERACTIVE Systems Corporation, is
               an extension of UNIX System V.




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