The question is: will your amiga run a debian ppc linux, with the linux ppc kernel?

if the answer is yes, you can try. But:
The CD is bootable only in NewWorld Mac. I have absolutely no idea about how to make a amiga bootable CD.

If you find an amiga bootloader for linux, the kernel is /boot/linux.bin and the initrd image is /boot/root.bin.gz; root=/dev/rd/0; this can help you maybe.

Good Luck