Use follow command will build the image "blockless.iso" to PWD.
make # depmod
use depmod to generate the modules.alias, modules.dep, modules.symbols
# modprobe ne2k_pci
# ifup -a
The drivers will in the modules.alias file.
modprobe will insert module ne2k_pci and others modules which depended.
ifup will read the /etc/networking/interfaces, and up the ifaces which defined in the file.
WARNING when use insmod directly, the error occur, insmod: can't insert 'ne2k-pci.ko': unknown symbol in module, or unknown parameter, because the depended kernel is not insert into kernel.