Hi HyungJong, I've finally managed to get to the point where I can give the configs a try (one with -DTAGGED_IMAGE enabled, one without)
in both cases, the boot sequence reported that the bootloader class was unknown (Type = 0x00000000), but the system then went on to boot the loaded kernel quite happily (see attached capture file)
I've also attached the romimages as well file :- lb+eb-elf = linuxbios + etherboot (elf images only) lb+eb-tag+elf = linuxbios + etherboot (tagged and elf images)
if you still don't get any further, I think it time to look at the kernel configuration once again.... the command line you specified did have the correct disk partition listed as root didn't it ? I seem to recall that you'd configured /dev/hda3 as the root partition, does this match with where / really is ?
regards Mark Wilkinson