Date: Tue, 21 Apr 1998 08:53:06 +0200 (MEST) From: Søren Schmidt <sos@FreeBSD.ORG> To: kpielorz@tdx.co.uk (Karl Pielorz) Cc: mike@smith.net.au, hardware@FreeBSD.ORG Subject: Re: best wdc0 flags ? Message-ID: <199804210653.IAA01303@sos.freebsd.dk> In-Reply-To: <353BC450.D30240AB@tdx.co.uk> from Karl Pielorz at "Apr 20, 98 10:55:28 pm"
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In reply to Karl Pielorz who wrote:
> Mike Smith wrote:
>
> > Try taking Soren's advice and cutting your BIOS back to mode3 PIO. He
> > has actual experience with these drives, so I'd be inclined to take his
> > word for it.
>
> I thought the BIOS config was overwritten by the wd device as it came up? -
> i.e. setup every time? - In fact I thought a lot of the BIOS stuff was just
> ignored anyway - and rediscovered at probe time or overwritten by the Kernel
> (e.g. floppy drive type etc.)
Hmm, not really, the timing selected stays..
>
> Of course I do have one complicating factor... None of the drives appear in
> the BIOS - if I set them in the BIOS to anything else other than 'Not
> installed' the system won't boot off my SCSI drive (sd0) - the IDE's were an
> afterthought (and the BIOS doesn't have a 'Boot from SCSI' option :-(
Give the sucker a new BIOS :), all respectable manufactures has an
upgrade for this...
> If DMA is avoiding all the problems I'm probably going to leave it be... I
> have another machine to setup soon - pure IDE - and suprise, suprise - it's
> also getting a 4.3Gb SE - I'll try out the different BIOS options on that...
> (It's also 440FX)...
Nope, it will get even WORSE with DMA, you will get serious disk corruption
if the timing is too fast, been there tried that, junked those Quantums :(
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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