OSDev.org

right i have two files

pkernel.bin kernel
pboot.bin bootloader

how do i use partcopy to put the bootloder on a floppy disk

http://www.osdev.org/osfaq2/index.php/BabyStep1 will tell you how to do for the bootloader.

For your kernel, that'll depend on where the bootloader expects it, of course, and how long it is ...

Of course if you format your floppy with a file system say fat12 and write the necessary functions to search for it you can copy it directly do the floppy.

copy pboot.bin+bkernel.bin osimage.img
partcopy osimage.img 0 IMAGE_SIZE_IN_HEX -f0

HTH

/ Christoffer