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RXFORMAT(8V)                                                      RXFORMAT(8V)



NAME
       rxformat - format floppy disks

SYNOPSIS
       /etc/rxformat [ -d ] special

DESCRIPTION
       The  rxformat program formats a diskette in the specified drive associ-
       ated with the special device special.  ( Special is normally /dev/rrx0,
       for  drive  0, or /dev/rrx1, for drive 1.)  By default, the diskette is
       formatted single density; a -d flag may be  supplied  to  force  double
       density  formatting.   Single  density  is compatible with the IBM 3740
       standard (128 bytes/sector).  In double density, each  sector  contains
       256 bytes of data.

       Before  formatting  a  diskette rxformat prompts for verification (this
       allows a user to cleanly abort the operation; note  that  formatting  a
       diskette  will  destroy  any existing data).  Formatting is done by the
       hardware.  All sectors are zero-filled.

DIAGNOSTICS
       `No such device' means that the drive is not ready, usually because  no
       disk  is  in the drive or the drive door is open.  Other error messages
       are selfexplanatory.

FILES
       /dev/rx?

SEE ALSO
       rx(4V)

BUGS
       A floppy may not be formatted if the header info on sector 1,  track  0
       has  been  damaged.   Hence,  it is not possible to format a completely
       degaussed disk.  (This is actually a problem in the hardware.)

AUTHOR
       Helge Skrivervik



4th Berkeley Distribution        28 April 1983                    RXFORMAT(8V)