Kernel 2.6.17-1.2145_FC5 hangs on boot

[bmeehan]

Any help would be most appreciated. Wife Acceptance Factor with MythTV is dying quickly.

Hardware: MSI K8NGM2-FID, 1GB, 2x320GB in hardware raid mirror setup onboard
BIOS: 3.50

partitioning:
/boot 100MB
swap 1GB

extended {
/ 8000GB
/video 279GB
}
Software: Fedora Core 5 x86_64, KDE

Installed fine and boots with 2.6.15-1.2054_FC5 stock FC5 kernel.
# yum upgrade yum
# yum upgrade kernel
upgrades and installs 2.6.17-1.2145_FC5 to grub.

On reboot....
-----------------------------------------------------------------------
root (hd0,0)
Filesystem type is ext2fs, partition type 0x83
kernel /vmlinuz-2.6.17-1.2145_FC5 ro root=LABEL=/ rhgb quiet
[Linux-bzImage, setup=0x1e00, size=0x1d688f]
initrd /initrd-2.6.17-1.2145_FC5.img
[Linux-initrd @ 0x37ed0000, 0x11f509 bytes]


.
Decompressing Linux...done.
Booting the kernel.

PCI: BIOS Bug: MCFG area is not E820-reserved
PCI: Not using MMCONFIG.
powernow-k8: MP systems not supported by PSD BIOS structure
Red Hat nash version 5.0.32 starting




(at the bottom of the screen)
kernel direct mapping tables up to 100000000 @ 8000-80000
-----------------------------------------------------------------------
And that's it. It hangs there. No keyboard reset, must be done via power or reset button. The powernow-k8 message also appears with the working stock kernel as well.

I have no message files to go on, since the f/s is mounted readonly at this stage. Here's snippit from a good boot of what SHOULD come next...

Jul 13 02:06:03 myth kernel: powernow-k8: MP systems not supported by PSB BIOS structure
Jul 13 02:06:03 myth kernel: ACPI wakeup devices:
Jul 13 02:06:03 myth kernel: P0P8 P0P9 P0PA NSMB USB0 USB2 NMAC P0P1 HDAC PWRB
Jul 13 02:06:03 myth kernel: ACPI: (supports S0 S1 S3 S4 S5)
Jul 13 02:06:03 myth kernel: Freeing unused kernel memory: 196k freed
Jul 13 02:06:03 myth kernel: Write protecting the kernel read-only data: 432k
Jul 13 02:06:03 myth kernel: SCSI subsystem initialized
Jul 13 02:06:03 myth kernel: ACPI: PCI Interrupt Link [LSA0] enabled at IRQ 23
Jul 13 02:06:03 myth kernel: GSI 16 sharing vector 0xB1 and IRQ 16
Jul 13 02:06:04 myth kernel: ACPI: PCI Interrupt 0000:00:0e.0[A] -> Link [LSA0] -> GSI 23 (level, low) -> IRQ 16
Jul 13 02:06:04 myth kernel: ata1: SATA max UDMA/133 cmd 0xD880 ctl 0xD802 bmdma 0xD080 irq 16
Jul 13 02:06:04 myth kernel: ata2: SATA max UDMA/133 cmd 0xD480 ctl 0xD402 bmdma 0xD088 irq 16
Jul 13 02:06:04 myth kernel: ata1: SATA link up 3.0 Gbps (SStatus 123)
Jul 13 02:06:04 myth kernel: ata1: dev 0 ATA-7, max UDMA/133, 625142448 sectors: LBA48
Jul 13 02:06:04 myth kernel: ata1: dev 0 configured for UDMA/133
Jul 13 02:06:04 myth kernel: scsi0 : sata_nv
Jul 13 02:06:04 myth kernel: ata2: SATA link up 3.0 Gbps (SStatus 123)