Getting Grub to Recognize Kernel Update to 2.4.12

["eDoc" <e.net@verizon.net>]

> To boot the kernel from /dev/hda2 with ide bus speed set to 66MHz, enter
on
> the GRUB command line:
> root (hd0,1)

OK.

> kernel /boot/vmlinuz root=/dev/hda2 idebus=66

When I enter this I get an "Error 15: File not found"

What is it that it cannot find and how do I go about repairing that, please?

Thanks!  Doc