LinuxSA Mailing list archives

  From: Robert Mibus <mibus@bigpond.com>
  To  : Vladimir V. Bashkirtsev <mega@konectanet.com.au>
  Date: Mon, 19 Feb 2001 12:09:28 +1030

Re: ATA 100 Hard drive and installing LINUX

On Sat, Feb 17, 2001 at 01:51:43AM +1030, Vladimir V. Bashkirtsev wrote:
> > On Mon, Feb 12, 2001 at 11:51:06PM +1030, John Davey wrote:
> > > Yes you need the linux 2.4.0 kernel for ATA100 support
> > Or you can get the patch, and rebuild the kernel.
> > www.linux-ata.org IIRC.
> > (maybe linux-ide.org, I'm not sure. email me if you can't find it, I'll
> > send you a patch for 2.2.17 or 2.2.18)
> 
> Or you can leave your current 2.2.* kernel alone... :) Do lspci , find
> unrecognized mass storage device, write down first 4 IO ports and then add
> it to lilo.conf with append like:
> append="ide2=<firstIO>,<secondIO+2> ide3=<thirdIO>,<fourthIO+2>"
> 
> Thus you will force your kernel to work with this controller. Most of
> ATA-100 controllers IDE specification compliant just have different IDs
> which confuse kernel to recogize device. In this config you will get hde,
> hdf, hdg, hdh.
But there is a good reason for using ATA-100: after changing to the
patched kernel, disk reads (& presumably writes) were **much** faster. I
didn't run any 'real' benchmarks, but the system is definately faster.
(& can copy 60MB files to /dev/null heaps faster too :-)

> > I'm doing this, and it works *fantastic*. Well, the machine pauses a bit
> > while it searches for non-existant drives hde&hdf at boot time, but I
> > can live with that given how much it helps the speed of everything else
> > :-)
> 
> If you have no drives on channel then simply omit it and you will boot
> faster! If you wish to see your ATA as hda then use ide0 instead ide2.
Its actually the non-ATA-100 controller doing that, and I have no idea
why - I already have the ATA-100 controller doing hda,c,d.

> PS: Patch sounds better but how you will patch kernel on drive which you
> cannot recognize?! I don't mean physical reconnection of drive to EIDE - I'm
> too lazy for it... :)
I had it running on the non-ATA-100 controller on this board for some
time before I got around to getting that patch; I ended up swapping it
back & forth a few times, but I don't care now :-P

mibus

-- 
Robert Mibus <mibus@bigpond.com>
Procrastination rarely works, but when it does, it's a beautiful thing

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