Re: Problems with Intel 875P / ICH5R

From: athol (me_at_privacy.net)
Date: 01/18/04 

Date: 18 Jan 2004 00:04:50 GMT

Daniel Lidstr?m <someone@microsoft.com> wrote:

> I have a problem installing linux. My motherboard is an Intel 875P with
> Raid controller (ICH5R). My wish is to have Raid-0 with my two SATA discs.
> From what I've read and experimented myself, I understand that I have to
> set legacy mode on my SATA discs so they are identified as IDE drives. That
> leaves a problem as I am trying to install linux from the CD-ROM. It is
> connected to master IDE and isn't detected in legacy mode. What can I do?
> Is there better support on the way? My last wish is to go back to Windows
> XP.

AFAIK, there is ongoing development to support RAID on that chipset.

You'd probably need to run kernel 2.6.1 to get RAID working, and from
what I've read recently, you'd probably want to set the BIOS to
native S-ATA only, then enable P-ATA. This should make the SATA
hardware operate in native mode and the PATA hardware operate in
legacy mode IIRC.

Make sure that the kernel you're running has piix support compiled in
in the IDE drivers section. I'm running an ICH4 and an ICH5 without
any serious problems but all my drives are PATA. 

-- 
Athol
<http://cust.idl.com.au/athol>
Linux Registered User # 254000
I'm a Libran Engineer. I don't argue, I discuss.

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