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Date:      Sat, 9 Sep 1995 07:05:11 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freefall.freebsd.org
Subject:   Re: higher density diskettes
Message-ID:  <199509090505.HAA16876@uriah.heep.sax.de>
In-Reply-To: <Pine.NEB.3.91.950908182858.6921A-100000@nike.efn.org> from "John-Mark Gurney" at Sep 8, 95 06:45:34 pm

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As John-Mark Gurney wrote:
> 
> done... the full url is ftp://freefall.cdrom.com/incoming/fdformat.zip the
> program to run to read the disks is fdread.exe... and the program to
> format is fdformat.exe... also...  it has a nice ability to interleve
> sectors...  this can dramaticly improve read times...  esspessially when
> you format a 3-1/2HD floppy to 1.2meg (to diskcopy a 5-1/4HD)...  I have
> no problems mounting the disk with freebsd with the command "mount_msdos
> /dev/fd0.1720 /mnt"... 

I don't know why you need to interleave a 3.5in floppy when formatting
it to 15 sectors/track, simply put less sectors on it and increase the
inter-sector gap (GAP3).  All this aside, there's nothing in your
program you could not have done with FreeBSD's fdformat program, too.
(At least, not from the description you gave above.)

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)



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