Kernel panic after IDE init when booting 3.0 CD

[Reid Beels]

I'm attempting to install YDL 3.0 on a 450 G4 and when I attempt to 
boot the system from the CD I receive a kernel panic after the IDE 
initialization.   This same thing has happened before using a 2.3 CD 
and I had hoped that 3.0 would resolve the issue. The messages near the 
panic are as follows:

Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with 
idebus=xx
ide0: Foung Apple KeyLargo ATA-4 controller, bus ID 2
ide1: Foung Apple KeyLargo ATA-3 controller, bus ID 0
ide2: Foung Apple KeyLargo ATA-4 controller, bus ID 1
Probing IDE interface ide0...
hda: IBM-DPTA-371020, ATA DISK drive
hdb: MAXTOR 4K040H2, ATA DISK drive
Probing IDE interface ide1...
hdc: MATSHITADVD-ROM SR-8585, ATAPT CD/DVD-ROM drive
Probing IDE interface ide2...
ide0 at 0xf1368000-0xf1368007,0xf1368160 on irq 19
ide1 at 0xf136c000-0xf136c007,0xf136c160 on irq 20
hda: Enable Ultra DMA 4
blk: que c02d7778, I/O limit 4095Mb (mask 0xffffffff)
Oops: Exception in kernel mode, sig: 4

After this there come the barrage of hex values and such that tend to 
accompany kernel panics.  If anyone would find these useful in 
diagnosing this problem, let me know and i can post them.  Thank you, 
Reid Beels