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       ufiformat - Format a USB floppy disk.


       ufiformat [ -hiqv ] [ -f|--format [size]] [ devicepath ]


       -f, --format [size]
              Specify format capacity SIZE in KB.  Without -f option, the
              format of the current media will be used.

       -F, --force
              Do not perform any safety checks.

       -i, --inquire
              Show device information, instead of performing format.  Without
              devicepath argument, list all USB floppy disk devices attached
              to the system.

       -v, --verbose
              Be verbose.

       -q, --quiet
              Suppress minor diagnostics.

       -h, --help
              Show help message.


       ufiformat is a raw level formatting disk utility for USB floppy

       Raw level format is to write gap,index,sectors to the unformatted disk
       using special commands specific to the disk controller, to make the
       plain magneto-sensitive film into sector-addressable medium.  Note that
       raw level format is NOT about creating filesystems (fs(5)) on the disk.

       After mid-1990’s, floppy disks are sold generally pre-formatted in MS-
       DOS 2HD format: 80 cylinder, 2 heads, 18 sectors/track, 512
       bytes/sector; it is seldom in need for raw formatting.  Nevertheless
       raw formatting could cure some disk and drive mismatchings.

       WARNING: You will NOT raw format an LS-120 disks or (removable) hard
       disks; they are precision formatted in factory and cannot be raw

       ufiformat supports only the following format capacities:
                 1440/1232/1200 (for 2HD disk)
                 720/640        (for 2DD disk)
       The device should support the capacities also, otherwise ufiformat
       shows an error message.

       The above format capacities are predefined in the program, but each USB
       floppy device also has a limited set of formats (defined internally)
       that it can format media to.  The allowed format capacities are
       obtained by querying (-i) the device, but this only returns the total
       format capacity and not CHS (cylinder, heads and sectors), hence a
       mapping is required in the program.


       Inquiry the device for available format:
              # modprobe sg
              # ufiformat -i /dev/sda
              vendor:  Y-E DATA
              product: USB-FDU
              write protect: off
              media type: 2HD
              status      block size   kb
              formatted    2880  512 1440
              formattable  2880  512 1440
              formattable  1232 1024 1232
              formattable  2400  512 1200

       Format the floppy disk in 1.44MB, and create a FAT filesystem:
              # ufiformat -f 1440 /dev/sda
              # mkdosfs -I /dev/sda


       ufiformat needs /dev/sg* SCSI pass-thru device to operate.  If the
       device does not exist, add the driver by invoking modprobe sg.

       You often need to be root to do anything with /dev/sd*.


       fdformat(8), floppy(8), sg(4)

       "Universal Serial Bus Mass Storage Class - UFI Command Specification"
       Revision 1.0 December 14 1998