GRUB 0.9.3 cannot boot RedHat 2.4.20* kernels on INOVA cPCI

[RChan]

Hi folks,

I have encountered a strange problem where GRUB 0.9.3 cannot
boot RedHat errata kernels 2.4.20-18.8 (RH 8) or 2.4.20-18.9 (RH 9)
on an INOVA cPCI PIII embedded PC running a Phoenix BIOS 4.0 Release 6

Nothing happens after I type "boot" at the command line. The system 
remains alive as I can ctrl-alt-del to reboot the system.

The kernels I use are stock RedHat errata kernels of 2.4.20 vintage.
I can see grub launching into big_linux_boot() but I then do not
get the 'Uncompressing kernel ' message.

BTW on this system GRUB is able to boot RedHat 2.4.18* vintage kernels
and even 2.6.0-test1 home-brew kernel.

Just wondering if there is anything pathological about these new
RedHat 2.4.20* kernels or is there a way to detect if the kernel+initrd
is loaded correctly. The command line messages are all looking harmless.


Cheers

Richard Chan