[Bug 8602] Further issues with IDE CDROM plus SATA HDD (ata_piix)

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------- Additional Comments From julian.sasse at gmail.com  2005-04-10 23:43 UTC -------
Created an attachment (id=2074)
 --> (http://bugzilla.ubuntu.com/attachment.cgi?id=2074&action=view)
Comparison of effect of BIOS settings on SATA detection

The attachment contains the following directories with dmesg, lsmod, lspci
outputs.  Note that the ICH6R SATA RAID BIOS is NOT active with any of the BIOS
settings tested below (only the RAID-ENHANCED combination causes it to be
active).

hoary_AHCI_ENHANCED_not_ok
Hoary Final Release (ubuntu-5.04-install-amd64.iso)
BIOS set to SATA Mode: AHCI, On-Chip Serial ATA: Enhanced Mode
In that mode, the BIOS is supposed to support 6 devices (ie 2 IDE, 4 SATA).
Notes: This is the mode that I would very much like to get working. uname,
dmesg, lsmod were done right after the installer's CD-detection step (which
failed). There were no /dev/hd* or /dev/sd* or /dev/cdrom* devices so I have no
fdisk output. lspci outputs are from after I hooked up a USB HD (which became
/dev/sda) so that I could load additional installer modules from there and be
able to run lspci (and also so that I would have somewhere to copy the outputs
to).

hoary_IDE_COMBINED_semi_ok
Hoary Final Release (ubuntu-5.04-install-amd64.iso)
BIOS set to SATA Mode: IDE, On-Chip Serial ATA: Combined Mode
Notes: I don't really want to use this mode at all since it limits you to 4
devices (and the server supports 4 hotswap SATA plus CD etc). I mainly included
this mode because there is no segfault evident in dmesg. uname, dmesg, lsmod
were done right after the installer's CD-detection step (successful). The cdrom
device was /dev/cdroms/cdrom0 (there was no /dev/hda) and the 1st SATA drive
was /dev/sda. The 2nd SATA drive was a primary on a 2nd channel which was not
available with that BIOS setting so it was not detected (as expected). When I
hooked up the USB drive that became /dev/sdb.

hoary_IDE_ENHANCED_ok
Hoary Final Release (ubuntu-5.04-install-amd64.iso)
BIOS set to SATA Mode: IDE, On-Chip Serial ATA: Enhanced Mode
Notes: This mode should be the closest to AHCI-ENHANCED, except that I probably
can't get SATA NCQ support. As with AHCI-ENHANCED there WAS a segfault evident
in dmesg. uname, dmesg, lsmod were done right after the installer's
CD-detection step (successful). The cdrom device was /dev/hda and the 1st SATA
drive was /dev/sda and the 2nd SATA drive was /dev/sdb. When I hooked up the
USB drive that became /dev/sdc.

overclockix38_AHCI_ENHANCED_ok
Essential a variant of the Knoppix 3.8 CeBit edition LiveCD
BIOS set to SATA Mode: AHCI, On-Chip Serial ATA: Enhanced Mode
In that mode, the BIOS is supposed to support 6 devices (ie 2 IDE, 4 SATA).
Notes: Only included for comparison with hoary_AHCI_ENHANCED. No segfault and
no problems with CD (/dev/hda) or drive detections (/dev/sda and /dev/sdb).

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