-#!/usr/bin/env bash
+#!/bin/sh
#
# Copyright (C) 2017 OpenWrt.org
head=4
sect=2048
-set `ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M`
+set $(ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M)
BOOTOFFSET="$(($1 / 512))"
BOOTSIZE="$(($2 / 512))"