From: "stheg olloydson" <[EMAIL PROTECTED]>

On 9 Sep 2006 14:54:09 -0000 ihilt wrote:

On Wednesday 06 September 2006 7:54 pm, jdow wrote:

>> Ok. Maybe the better question is: in either case, C/H/S or
LBA mode,
>> where are these parameters stored?

They flat out are not stored anywhere. There is a standard
published by the VESA people, I believe, that provides the
data for
all SCSI drives and modern IDE/ATA/SATA drives.

Do you know the name of this standard or where I can get it?

Ian Graeme Hilt

Actually, the stardard is created by the T13 Technical Committee
of the InterNational Committee for Information Technology
Standards (INCITS), formerly the Accredited Standards Committee
X3, Information Technology. Its standards are published by ANSI.
The one you are looking for is ANSI INCITS 397-2005 AT
Attachment - 7 with Packet Interface. You can download a pdf
from for $30.00US. Just search for 397-2005. You can also get a free copy of a working draft of a standard
withdrawn in 2002, X3.298-1996, from While the
information you are looking is unlikely to have changed between
1996 and 2005, you are in a better position to weigh the benefit
to your project of saving $30.00US versus using possibly
horribly wrong information. (It is a _working draft_ from 1996,
after all.)

It's probably cheaper to read the code for the GNU BIOS project
or for things like fdisk. It should be present in both places.

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