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Old 02-28-2010, 05:22 PM
Iain Davis
 
Default Installing Fedora Core 12 on a system with a IT8212 SATA Controller

On Sun, Feb 28, 2010 at 12:06 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> It does. One thing worth noting is that the chip has two modes. In the
> RAID mode it doesn't support CD-ROM devices but handles basic raid stuff
> itself via its embedded microcontroller. In non-RAID mode it behaves
> exactly like a standard IDE controller. Both modes are supported. RAID 0
> is generally best done using software RAID in Linux, RAID 1 there are
> advantages to doing it either way. Some of the RAID firmwares are a bit
> flakey so if you get a problem boot it with the device in non-RAID mode.
> (if the BIOS won't let you set it then try 'pata_it821x.noraid=1' as a
> boot option.

Hmm. I have a belief that I'm not operating the controller in a RAID
mode, but I will double check. If I don't get anywhere in that
direction, I'll try the boot option you've suggested.

Thanks for your help.
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Old 02-28-2010, 11:11 PM
Iain Davis
 
Default Installing Fedora Core 12 on a system with a IT8212 SATA Controller

On Sun, Feb 28, 2010 at 12:06 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>> > I have a machine whose only hard drive is a SATA 160GB (Western
>> > Digital). The SATA controller is an ITE IT8212 (a raid controller, but
>> > I'm not using that feature).
>
> The IT8212 is a PATA controller not SATA. I guess they may have wired
> SATA bridges to it.

I should have clued in when you said this, but I didn't until I was
messing about in the case (prompted by Roger's comments about drive
searching):

The drive is NOT SATA. I relied on my memory of what I had done to the
hardware a couple of years back...and was completely wrong. I thought
I had put in a SATA drive & controller, but in fact it was this IT8212
PATA controller and the Western Digital WD1600JB (Caviar). A EIDE
drive. I guess I merely dreamed that it was a SATA controller/drive.


So I mis-represented my problem in that respect, my apologies!

So far, I've not resolved the problem, though. I've so far tried
Alan's two suggestions and Roger's:

* I made sure the controller was in IDE mode (I _believe_ it was
before, but the controller's bios seems to default to RAID 0, rather
than what you had set the mode to, so I can't be sure)
* I tried the 'pata_it821x.noraid=1' boot option.
* Disabling any drives besides the DVD-ROM and the Caviar HDD. (Which
the only thing left was the floppy drive).

I'm going more closely examine how I have the hardware put together,
perhaps something will jump out at me.

Oh! One other thing I tried. I had a copy of Slackware 12.x laying
around, and experimentally booted up with slackware and took a look
with cfdisk, and I could see the drive. What I take from that is that
something about my hardware and the Fedora installer isn't playing
nice together and I just have to track down what...

Thanks again to the three of you (Fred, Alan and Roger) for your help.

Iain
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