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From: jca@pnet01.cts.com (John C. Archambeau)
Newsgroups: comp.sys.ibm.pc
Subject: 16-bit FAT
Message-ID: <611@crash.cts.com>
Date: 29 Oct 89 07:56:12 GMT
Sender: root@crash.cts.com
Organization: People-Net [pnet01], El Cajon CA
Lines: 22

Could somedy please inform me of the necessary changes I have to make to the
BIOS parameter block in the boot sector of a DOS paition to transform it into
a 16-bit FAT?  I did this several times with an ST225, but apparently (not too
surprising actually) changing the FAT from 12 to 16 bits is totally dependant
upon the drive parameters.  The drive I want to do this with is a Seagate
ST151.  I know it can be done since I have done it with an ST225, but I don't
have access to the MS-DOS 3.x technical reference manual.  I just made a note
of the changes to do this on 4 headed 10 Mb or 20 Mb drives.  Anyway, the
parameters of an ST151 are as follows; 5 heads, 977 cylinders.  I only want to
give 10 Mb to MS-DOS and leave the rest for Minix and/or SCO Xenix when I get
around to buying the 286 version.

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