rxformat man page on 4.4BSD

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RXFORMAT(8)		  BSD System Manager's Manual		   RXFORMAT(8)

     rxformat — format floppy disks

     rxformat [-d] special

     The rxformat program formats a diskette in the specified drive associated
     with the special device special.  (Special is normally /dev/rx0, for
     drive 0, or /dev/rx1, for drive 1.)

     Available option:

     -d	     Force double density formatting.  By default, the diskette is
	     formatted single density; 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 if stan‐
     dard input is a tty (this allows a user to cleanly abort the operation;
     note that formatting a diskette will destroy any existing data).  Format‐
     ting is done by the hardware.  All sectors are zero-filled.

     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



     Helge Skrivervik

     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 DEC hardware.)

     The rxformat command appeared in 4.2BSD.

4.2 Berkeley Distribution	March 16, 1991	     4.2 Berkeley Distribution

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