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#!/bin/sh
die() {
cat <<EOF >&2
Error: $@
Usage: ${0} IMG_DIR GENIMAGE_CFG EXT_BIN_DIR [BOOTFS_OVERLAY]
EOF
exit 1
}
echo "Creating bootfs image"
echo "- image directory path: ${1}" # Generic argument set by Buildroot
echo "- genimage config file: ${2}"
echo "- external bins path: ${3}"
echo "- bootfs overlay path: ${4}"
[ ! -z "${2}" -a -e ${2} ] || die "Error: missing argument genimage config file"
[ ! -z "${3}" -a -d ${3} ] || die "Error: missing argument external binaries dir"
[ -z "${4}" -o -d ${4} ] || die "Error: invalid bootfs overlay directory path"
GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
# Create target bootfs filesystem
# - Copy uImage and DTBs from path provided in arg $3 into boot/
# - Copy bootfs overlay filetree from path provided in optional arg $4
BOOTFS_DIR=${BASE_DIR}/target-bootfs
rm -f ${BINARIES_DIR}/bootfs.ext2 || exit 1
rm -rf ${BOOTFS_DIR} && mkdir -p ${BOOTFS_DIR}/boot || exit 1
cp --dereference ${3}/uImage ${BOOTFS_DIR}/boot || exit 1
for f in ${3}/*.dtb; do
test -f $f && { cp --dereference $f ${BOOTFS_DIR}/boot || exit 1; }
done
[ -z "${4}" ] || { cp -ar ${4}/* ${BOOTFS_DIR} || exit 1; }
mkfs.ext2 -L bootfs -d ${BOOTFS_DIR} ${BINARIES_DIR}/bootfs.ext2 32M || exit 1
# Generate image from generated partition images and genimage config file
rm -rf "${GENIMAGE_TMP}"
genimage --rootpath "${ROOTPATH_TMP}" \
--tmppath "${GENIMAGE_TMP}" \
--inputpath "${BINARIES_DIR}" \
--outputpath "${BINARIES_DIR}" \
--config ${2}
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