abootimg/pack-initrd

#!/bin/sh
#

initrd=${1:-initrd.img}
ramdisk=${2:-ramdisk}

if [ ! -d $ramdisk ]; then
    echo "$ramdisk does not exist."
    exit 1
fi

if [ -f $initrd ]; then
    echo "$initrd already exist."
    exit 1
fi

( cd $ramdisk; find | sort | cpio --quiet -o -H newc ) | gzip > $initrd