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Date:      Fri, 8 Sep 1995 14:26:27 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freefall.freebsd.org
Subject:   Re: higher density diskettes
Message-ID:  <199509081226.OAA12898@uriah.heep.sax.de>
In-Reply-To: <199509080645.QAA01164@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Sep 8, 95 04:15:44 pm

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As Michael Smith wrote:
> 
> Does the BIOS actually rangecheck the sector numbers you try to read?
> Talk about a nuisance 8( (As suggestions go, it wasn't a bad one)

The BIOS has rather conservative assumptions about the sectors to load
(it uses some table in the BIOS data area to initialize the FDC).
It's unable to handle floppies like:

size:           1024 - 512 - 2048 - 8192
sector ID:       131   130    132    134

(This is OS/2's XDF format.)

-- 
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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