can grub load flat binary execute

[coly li]

I want to use grub load my flat binary execution. the filesystem is ext2. 
grub.conf is in /boot/grub/grub.conf, as bellow:

default=0
timeout=10

title test os
root (fd0)
kernel /kernel.bin


the kernel.bin is only display "hello, world " in real mode.

but after I install grub on floppy, and boot the machine. the grub tells me 
can't understand the file's format. for I complied the kernel.bin with flat 
assembler, it has no format.

so, I wanna, how can I use grub to load a flat binary execution.


Coly Li