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#!/bin/sh
# based on: https://github.com/sutajiokousagi/meta-kosagi/blob/novena/conf/machine/include/imx61.inc
set -e # halt on failure
BOARD_DIR="$(dirname $0)"
GENFATFS=$HOST_DIR/usr/bin/genfatfs
MAKEDISK=$HOST_DIR/usr/bin/makedisk
KERNEL_UIMAGE=$BINARIES_DIR/uImage
KERNEL_UIMAGE_RENAME=uImage-novena.bin
KERNEL_DTB=$BINARIES_DIR/imx6q-novena.dtb
KERNEL_DTB_RENAME=uImage-novena.dtb
UBOOT_BIN=$BINARIES_DIR/u-boot.imx
UBOOT_SCR=$BINARIES_DIR/boot.scr
ROOTFS_IMG=$BINARIES_DIR/debian-rootfs.ext4
WORK_DIR=$BASE_DIR/makedisk
FATFS_BLOCKS=65536
BOOT_SIZE=32M
EXT_SIZE=400M # TODO: grab this from a BR2_something environment variable?
PADDING_SIZE=512k
FINAL_IMAGE=$BINARIES_DIR/novena-final-image.img
if [ ! -f $MAKEDISK ] ||
[ ! -f $GENFATFS ]; then
echo "makedisk and/or genfatfs missing."
exit 1
fi
if [ ! -f $KERNEL_UIMAGE ] ||
[ ! -f $KERNEL_DTB ]; then
echo "Kernel files missing."
exit 1
fi
if [ ! -f $UBOOT_BIN ] ||
[ ! -f $UBOOT_SCR ]; then
echo "u-boot files missing."
exit 1
fi
if [ ! -f $ROOTFS_IMG ]; then
echo "rootfs disk image missing."
exit 1
fi
# alright, on with it.
echo "Partitioning and assembling final image file..."
set -x # verbose command output
mkdir -p $WORK_DIR/fat-boot
cp $UBOOT_BIN $WORK_DIR/fat-boot
cp $UBOOT_SCR $WORK_DIR/fat-boot
cp $KERNEL_UIMAGE $WORK_DIR/fat-boot/$KERNEL_UIMAGE_RENAME
cp $KERNEL_DTB $WORK_DIR/fat-boot/uImage-novena.dtb
$GENFATFS -d $WORK_DIR/fat-boot -b $FATFS_BLOCKS $WORK_DIR/boot-novena.vfat
$MAKEDISK -o $FINAL_IMAGE \
-p $PADDING_SIZE \
-a $BOOT_SIZE:0x0b:$WORK_DIR/boot-novena.vfat \
-a $EXT_SIZE:0x83:$ROOTFS_IMG
dd if=$UBOOT_BIN of=$FINAL_IMAGE bs=512 conv=notrunc seek=2
rm -rf $WORK_DIR
set +x # verbose command output off
echo "Created final image file"
ls -lh $FINAL_IMAGE
echo "Compressing image..."
rm -f $FINAL_IMAGE.gz
gzip $FINAL_IMAGE
ls -lh $FINAL_IMAGE.gz
echo "Done, but you should probably run 'sync'."
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