Re: SATA/IDE Dual Mode w/Intel 945 Chipset or HOW TO LIQUIFY a flash IDE chip under 2.6.18

["Jeff V. Merkey" <jmerkey@wolfmountaingroup.com>]

Jeff Garzik wrote:

> Jeff V. Merkey wrote:
>
> > I just finished pulling out a melted IDE flash drive out of a Shuttle 
> > motherboard with the intel 945 chipset which claims to support
> > SATA and IDE drives concurrently under Linux 2.6.18.
> >
> > The chip worked for about 30 seconds before liquifying in the 
> > chassis.  I note that the 945 chipset in the shuttle PC had some serious
> > issues recognizing 2 x SATA devices and a IDE device concurrently.   
> > Are there known problems with the Linux drivers
> > with these newer chipsets.
> >
> > One other disturbing issue was the IDE flash drive was configured 
> > (and recognized) as /dev/hda during bootup, but when
> > it got to the root mountint, even with root=/dev/hda set, it still 
> > kept thinking the drive was at scsi (ATA) device (08,13)
> > and kept crashing with VFS cannot find root FS errors.
>
>
> We have two sets of ATA drivers now, and Intel motherboards support 
> bazillion annoying IDE modes, so you will need to provide more info 
> than this.
>
> Is the motherboard in combined mode?


Yes.  "Enhanced mode" is how it is listed in the BIOS.

> native mode?  AHCI or RAID mode?

No RAID, just enhanced mode (SATA 3.0 + IDE)

> What driver set did you pick?  


Standard build = standard IDE + Intel PIIX + SATA + Intel ICP

> is drivers/ide built in, modular, or disabled?  is drivers/ata built 
> in, modular, or disabled?

built in in all cases.

> The cannot-find-root-FS errors are definitely caused by driver and/or 
> initrd misconfiguration.  The melted flash, I dunno, maybe you managed 
> to get two drivers fighting over the same hardware.

No.  Seems related to the chipset problems.  If I say "root=/dev/hda2" I 
have better not be getting errors claiming device 08:13 could not mount 
as root.  memory corruption?

The melted flash seems power related (like pin 20 was live for some 
reason on a standard IDE).

Jeff

>     Jeff

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