> On 17 Aug 2018, at 21:01, Mihai Moldovan <[email protected]> wrote:
>
> [resent to list, since I forgot to add a CC header]
>
> * On 08/17/2018 06:11 PM, Vladimir 'phcoder' Serbinenko wrote:
>> Sure. Any BIOS able to read CD supports 2K sectors.
>> If you mean HDD then I have never seen one. I wrote support for non-512B
>> sectors
>> in GRUB but so far it's untested as I couldn't find such a BIOS
>
> Ah, of course. CD sectors are 2K big. Yeah, that makes sense.
>
> I meant HDD sectors, yes.
>
>
> My firmware is doing weird things: it always reports a sector size of 512
> bytes,
> reads and outputs data in 512 byte chunks, but sector addressing is actually
> HDD-dependent (i.e., for 4Kn drives 4K-based).
>
> I'll work around that using some heuristic, but that's only part of the
> problem.
>
>
> The bigger issue will probably be the boot image, which likely is too small to
> incorporate sophisticated code. I guess I could trick THAT into behaving
> correctly by spreading the core image file out over several sectors and only
> using the first 512 bytes of each sector.
>
Yes there are systems supporting BIOS INT13, see
https://www.illumos.org/issues/8303 <https://www.illumos.org/issues/8303> for
reference.
rgds,
toomas
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