On Fri, Mar 18, 2011 at 03:56:27PM +0100, Grégoire Sutre wrote:
> If the standard (non-extended) INT-13h interface is used, then addressing
> is performed via CHS, and w.r.t. to the BIOS geometry (which need not be
> the same as the ATA geometry reported by the disk itself, due to potential
> address translation by the BIOS).  I guess that H=255 is the from the BIOS
> geometry of the disk (as returned by the INT-13h function 08h).

Very likely.

> The geometry just says how to interpret CHS addresses, it does not imply
> any partition alignment.  You can have 1MiB-aligned partitions even with
> a n/255/63 BIOS geometry.

Certainly true.

-- 
Len Sorensen

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