#!/bin/sh path=/mnt/usb global.bootm.image=${path}/zImage initrd=${path}/initrd if [ -f ${initrd} ]; then global.bootm.initrd=${initrd} global.linux.bootargs.base="console=ttyO0,115200n8 root=/dev/ram0" else global.linux.bootargs.base="console=ttyO0,115200n8" fi