Subject: Re: unbootable new disk?
To: None <>
From: Michael van Elst <>
List: current-users
Date: 11/27/2004 08:54:28 (Steve Bellovin) writes:

>BIOS disk geometry:
>cylinders: 1024, heads: 240, sectors/track: 63 (15120 sectors/cylinder)
>total sectors: 268435455

That is exactly 128GB minus 1 sector which is the maximum size
you can address with LBA32.

>Why do the BIOS and NetBSD number of sectors disagree?

I would guess the BIOS doesn't know about LBA48 or tries to
hide a drive requiring LBA48 from dumb OSes.

                                Michael van Elst
                                "A potential Snark may lurk in every tree."