Re: Kernel & BIOS return differing head/sector geometries

H. Peter Anvin
2003-06-24T15:16:26Z

Werner Almesberger wrote:
> H. Peter Anvin wrote:
>
>>Presumably "linear", not "lba32". I *presume* LILO has enough
>>wherewithal to use EBIOS if it's available and fall back to CBIOS
>>otherwise for at least one of these options. I at least thought "lba32"
>>would force EBIOS usage.
>
>
> Yes, that seems to be the case. (All the LBA32 code is from John
> Coffman. I've copied him in case he's interested in the thread.)
> But you're still betting on the BIOS to either implement EDD
> correctly, or at least to report that it doesn't support it.
>
> Call me paranoid, but I wouldn't be at all surprised if there are
> some BIOSes out there that get this wrong.
>

Well... it's somewhat unlikely given the sheer amount of things that
would probably break. The rule these days is that if it works with the
particular versin of M$ that's currently shipping then it's good, but
I'm pretty sure NTLOADER uses EDD.

-hpa