dd if=/dev/zero of=./initrd bs=1024 count=4096
/sbin/losetup /dev/loop0 ./initrd
./mkfs.minix /dev/loop0
mkdir ./rootfs
mount /dev/loop0 ./rootfs
rm -rf ./rootfs/lost+found
tar -jxf rootfs.tar.bz2
umount ./rootfs
/sbin/losetup -d /dev/loop0
gzip -9 ./initrd
mv -f ./initrd.gz ./hicore/rootfs.img
rm -rf ./rootfs