diff options
Diffstat (limited to 'target/linux/beagleboard/image/gen_image.sh')
-rwxr-xr-x | target/linux/beagleboard/image/gen_image.sh | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/beagleboard/image/gen_image.sh b/target/linux/beagleboard/image/gen_image.sh new file mode 100755 index 0000000000..4fd6e377e5 --- /dev/null +++ b/target/linux/beagleboard/image/gen_image.sh @@ -0,0 +1,35 @@ +#!/usr/bin/env bash +# Copyright (C) 2006 - 2007 OpenWrt.org +set -x +[ $# == 5 ] || { + echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image>" + exit 1 +} + +OUTPUT="$1" +KERNELSIZE="$2" +KERNELDIR="$3" +ROOTFSSIZE="$4" +ROOTFSIMAGE="$5" + +rm -f "$OUTPUT" + +head=16 +sect=63 +cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512))) + +# create partition table +set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m` + +KERNELOFFSET="$(($1 / 512))" +KERNELSIZE="$(($2 / 512))" +ROOTFSOFFSET="$(($3 / 512))" +ROOTFSSIZE="$(($4 / 512))" + +BLOCKS="$((($KERNELSIZE / 2) - 1))" + +genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel" +dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc +[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE" +dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc +#rm -f "$OUTPUT.kernel" |