Re: 48-bit IDE [Re: 160gb disk showing up as 137gb]

Vojtech Pavlik (vojtech@suse.cz)
Sat, 27 Apr 2002 17:39:13 +0200

On Sat, Apr 27, 2002 at 03:55:51PM +0300, Ville Herva wrote:
> On Sat, Apr 27, 2002 at 12:16:06PM +0200, you [Martin Bene] wrote:
> >
> > IDE: The kernel IDE driver needs to support 48-bit addresseing to support
> > 160GB.
> >
> > (...) however, you can do something about the linux ATA driver: code
> > is in the 2.4.19-pre tree, it went in with 2.4.19-pre3.
>
> But which IDE controllers support 48-bit addressing? Not all of them?

ALL IDE controllers support 48-bit addressing. Actually, they don't need
to know about it.

> Does
> linux IDE driver support 48-bit for all of them?

Yes, since 2.4.19-pre3 as far as I know.

> Do they require BIOS
> upgrade in order to operate 48-bit?

Only if you need to boot from the drive and then you still can boot from
the first 140 megs or so.

> Or can I just grab a 160GB Maxtor and 2.4.19-preX, stick them into whatever
> box I have and be done with it?

That's it, yes.

-- 
Vojtech Pavlik
SuSE Labs
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