Ubuntu
linux-source-2.6.20 package

  1. Bug #116996
  2. Comment #78

Comment 78 for bug 116996

Revision history for this message
phsyco_ant (anthony-cox) wrote : Re: SATA disk is in PATA mode with kernel 2.6.20-16-generic (piix claiming SATA controller on ICH4/ICH5 Intel chipsets)

I have an ICH5 chip and my hard drives run off SATA and DVD+RWs on IDE

I could not boot with 2.6.20-16 (the kernel would hang on the first step [find boot media or something])

After adding the irqpoll option to the kernel and disabling SATA to IDE emulation in BIOS (ie enabling SATA RAID but not actually RAIDing the drives) my system boots.

I use UUIDs for the hard drives and the system will boot with the drives as sdax and sdbx with the ata_piix driver.

I believe the problem is to do with the BIOS emulating the SATA controller as IDE 3 and 4, and possibly the order in which the kernel polls for devices.

I hope this helps.