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external/packages/raspi/export-image/prerun.sh

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+#!/bin/bash -e
+
+#if [ "${NO_PRERUN_QCOW2}" = "0" ]; then
+#	IMG_FILE="${STAGE_WORK_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
+#
+#	unmount_image "${IMG_FILE}"
+#
+#	rm -f "${IMG_FILE}"
+#
+#	rm -rf "${ROOTFS_DIR}"
+#	mkdir -p "${ROOTFS_DIR}"
+#
+#	BOOT_SIZE="$((256 * 1024 * 1024))"
+#	ROOT_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --exclude boot --block-size=1 | cut -f 1)
+#
+#	# All partition sizes and starts will be aligned to this size
+#	ALIGN="$((4 * 1024 * 1024))"
+#	# Add this much space to the calculated file size. This allows for
+#	# some overhead (since actual space usage is usually rounded up to the
+#	# filesystem block size) and gives some free space on the resulting
+#	# image.
+#	ROOT_MARGIN="$(echo "($ROOT_SIZE * 0.2 + 200 * 1024 * 1024) / 1" | bc)"
+#
+#	BOOT_PART_START=$((ALIGN))
+#	BOOT_PART_SIZE=$(((BOOT_SIZE + ALIGN - 1) / ALIGN * ALIGN))
+#	ROOT_PART_START=$((BOOT_PART_START + BOOT_PART_SIZE))
+#	ROOT_PART_SIZE=$(((ROOT_SIZE + ROOT_MARGIN + ALIGN  - 1) / ALIGN * ALIGN))
+#	IMG_SIZE=$((BOOT_PART_START + BOOT_PART_SIZE + ROOT_PART_SIZE))
+#
+#	truncate -s "${IMG_SIZE}" "${IMG_FILE}"
+#
+#	parted --script "${IMG_FILE}" mklabel msdos
+#	parted --script "${IMG_FILE}" unit B mkpart primary fat32 "${BOOT_PART_START}" "$((BOOT_PART_START + BOOT_PART_SIZE - 1))"
+#	parted --script "${IMG_FILE}" unit B mkpart primary ext4 "${ROOT_PART_START}" "$((ROOT_PART_START + ROOT_PART_SIZE - 1))"
+#
+#	echo "Creating loop device..."
+#	cnt=0
+#	until LOOP_DEV="$(losetup --show --find --partscan "$IMG_FILE")"; do
+#		if [ $cnt -lt 5 ]; then
+#			cnt=$((cnt + 1))
+#			echo "Error in losetup.  Retrying..."
+#			sleep 5
+#		else
+#			echo "ERROR: losetup failed; exiting"
+#			exit 1
+#		fi
+#	done
+#
+#	BOOT_DEV="${LOOP_DEV}p1"
+#	ROOT_DEV="${LOOP_DEV}p2"
+#
+#	ROOT_FEATURES="^huge_file"
+#	for FEATURE in 64bit; do
+#	if grep -q "$FEATURE" /etc/mke2fs.conf; then
+#		ROOT_FEATURES="^$FEATURE,$ROOT_FEATURES"
+#	fi
+#	done
+#	mkdosfs -n bootfs -F 32 -s 4 -v "$BOOT_DEV" > /dev/null
+#	mkfs.ext4 -L rootfs -O "$ROOT_FEATURES" "$ROOT_DEV" > /dev/null
+#
+#	mount -v "$ROOT_DEV" "${ROOTFS_DIR}" -t ext4
+#	mkdir -p "${ROOTFS_DIR}/boot"
+#	mount -v "$BOOT_DEV" "${ROOTFS_DIR}/boot" -t vfat
+#
+#	rsync -aHAXx --exclude /var/cache/apt/archives --exclude /boot "${EXPORT_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
+#	rsync -rtx "${EXPORT_ROOTFS_DIR}/boot/" "${ROOTFS_DIR}/boot/"
+#fi