Hi! Jared, I wonder this message. $ mkubootimage usage: mkuboot -A <arm|powerpc> -T <kernel|ramdisk|fs> -C <none|gz|bz2> -a <addr> -e <ep> -n <name> <srcfile> <dstfile> ^^^^^^^ ;-) And must option '-e'? I know '-e' to be optional in mkimage of u-boot. The value of '-a' will be used when this is not. Thanks, -- kiyohara