1#!/usr/bin/env bash 2# 3# Copyright (C) 2015 OpenWrt.org 4# 5# This is free software, licensed under the GNU General Public License v2. 6# See /LICENSE for more information. 7# 8 9set -x 10[ $# -eq 4 ] || { 11 echo "SYNTAX: $0 <file> <u-boot.sb image> <rootfs image> <rootfs size>" 12 exit 1 13} 14 15OUTPUT="$1" 16UBOOT="$2" 17ROOTFS="$3" 18ROOTFSSIZE="$4" 19 20head=4 21sect=63 22 23# set the Boot stream partition size to 1M 24set `ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t 53 -p 1M -t 83 -p ${ROOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M` 25 26ROOTFS1OFFSET="$(($3 / 512))" 27ROOTFS1SIZE="$(($4 / 512))" 28ROOTFS2OFFSET="$(($5 / 512))" 29ROOTFS2SIZE="$(($6 / 512))" 30 31dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFS1OFFSET" conv=notrunc 32dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFS2OFFSET" conv=notrunc 33sdimage -d "$OUTPUT" -f "$UBOOT" 34