[syslinux] CD-ROM won't boot. BIOS problem?

[Anmol Khirbat]

Hi,

I'm having trouble booting my system using the SuSE 9.0 installer CD
at ftp://ftp.suse.com/pub/suse/i386/9.0/boot/boot.iso (ISOLINUX 2.06).

My system is a Kontron cPCI-DT64 single board computer. The CD-ROM
drive is an Adtron IC6C, has its own IDE controller and sits in
another cPCI slot.

System Details:

System BIOS - PhoenixBIOS 4 Release 6.0, cPCI-DT64 BIOS 2.5
Adapter BIOS - Sil 0680 ATA/133 Controller BIOS 3.2.10

ServerWorks CSB5: IDE controller on PCI bus 00 dev 79
ServerWorks CSB5: chipset revision 147
CMD680: IDE controller on PCI bus 02 dev 70
CMD680: chipset revision 2
hda: FUJITSU MHT2060AT, ATA DISK drive
hde: CD-224E, ATAPI CD/DVD-ROM drive

I made another CD (with mkisofs 1.15a27) by replacing isolinux.bin
with isolinux-debug.bin and got the following. 

ISOLINUX 2.08 2003-12-12 Copyright (C) 1994-2003 H. Peter Anvin
isolinux: Starting up, DL = 80
isolinux: Loading spec packet failed, trying to wing it...
isolinux: Failed to locate CD-ROM device; boot failed

Would this be due to a system BIOS problem or an adapter BIOS problem?
Or something else? Are there other things I can try to figure this
out? If this is a BIOS problem, I'd like to gather as much information
as possible before I bug the vendors.

TIA,
Anmol