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openwrt-xburst/target/linux/brcm2708/image/gen_rpi_sdcard_img.sh
blogic deae75dd41 [tools] tools/firmware-utils/ptgen option to use MB rounding
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33218 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-08-22 09:22:38 +00:00

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#!/usr/bin/env bash
set -x
[ $# == 5 ] || {
echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
exit 1
}
OUTPUT="$1"
BOOTFS="$2"
ROOTFS="$3"
BOOTFSSIZE="$4"
ROOTFSSIZE="$5"
head=4
sect=63
set `ptgen -o $OUTPUT -h $head -s $sect -l 4096 -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M`
BOOTOFFSET="$(($1 / 512))"
BOOTSIZE="$(($2 / 512))"
ROOTFSOFFSET="$(($3 / 512))"
ROOTFSSIZE="$(($4 / 512))"
dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc