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2001 Dec 30 17:02

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] Ultra DMA support
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Re: [vox-tech] Ultra DMA support



I have decided that I need to upgrade my kernel in order to get DMA 33
supported for Linux.  Right now I am not able to boot into Linux off of the
drive or a floppy.  How can I upgrade the kernel on a boot disk or my hard
drive or whatever without booting into Linux?  Is that even possible?  I
really have no idea where to start with a kernel upgrade.  Any help would be
greatly appreciated!

Joshua Poppe


----- Original Message -----
From: "Jan Wynholds" <jcwynholds@yahoo.com>
To: <vox-tech@franz.mother.com>
Sent: Tuesday, March 13, 2001 11:12 AM
Subject: Re: [vox-tech] Ultra DMA support


>
> --- Joshua Poppe <jjpoppe@ucdavis.edu> wrote:
> > My motherboard (Abit BE6) supports Ultra DMA 33 and
> > 66 but it is only available on ide2 and ide3 (3rd
> > and 4th eide slots).  I found the chip (highpoint
> > tech.) in the hardware compatibility list on
> > RedHat.com (I am running 7.0) and it is supported,
> > but harder to install if it is not the primary ide
> > (ide0, ide1). I tried telling the kernel that I have
> > my HD connected to UDMA, but alas the kernel didn't
> > feel like listening.  I have a clean install of
> > Linux on this drive without using UDMA and now I
> > would like to use my previous install with the UDMA.
> >  I am pretty new to Linux (meaning I know little
> > about it but I can navigate a Unix system pretty
> > well).  Any help or advice would be much
> > appreciated.  Also, I would be wiling to reinstall
> > if needed.
> >
> > Thanks,
> > Josh
> >
> Hey Josh:
>
> I don't think you need to reinstall.  I think that
> maybe you don't have ide dma compiled for your kernel.
>  RedHat does some funny stuff with the kernel that
> they ship.  At least, when I installed 7.0, ide dma
> wasn't compiled with the 2.2.16-22 kernel that came
> with it.
>
> How are you 'telling' the kernel to use dma?  hdparm?
> hdparm only works with the support from the kernel
> that it needs for the higher speeds.
>
> If you need help recompiling kernel, just ask :).
>
> Jan
>
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