| #!/bin/bash |
| |
| # Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # make_netboot.sh --board=[board] |
| # |
| # This script builds a kernel image bundle with the factory install shim |
| # included as initramfs. Generated image, along with the netboot firmware |
| # are placed in a "netboot" subfolder. |
| |
| SCRIPT_ROOT=$(dirname $(readlink -f "$0")) |
| . "${SCRIPT_ROOT}/common.sh" || exit 1 |
| |
| # Script must be run inside the chroot. |
| restart_in_chroot_if_needed "$@" |
| |
| DEFINE_string board "${DEFAULT_BOARD}" \ |
| "The board to build an image for." |
| DEFINE_string image_dir "" "Path to the folder to store netboot images." |
| |
| # Parse command line. |
| FLAGS "$@" || exit 1 |
| eval set -- "${FLAGS_ARGV}" |
| |
| . "${SCRIPT_ROOT}/build_library/build_common.sh" || exit 1 |
| . "${BUILD_LIBRARY_DIR}/board_options.sh" || exit 1 |
| |
| switch_to_strict_mode |
| # build_packages artifact output. |
| SYSROOT="${GCLIENT_ROOT}/chroot/build/${FLAGS_board}" |
| # build_image artifact output. |
| |
| if [ -n "${FLAGS_image_dir}" ]; then |
| cd ${FLAGS_image_dir} |
| else |
| cd "${CHROOT_TRUNK_DIR}"/src/build/images/"${FLAGS_board}"/latest |
| fi |
| |
| # Generate staging dir for netboot files. |
| sudo rm -rf netboot |
| mkdir -p netboot |
| |
| # Get netboot firmware. |
| # TODO(nsanders): Set default IP here when userspace |
| # env modification is available. |
| # TODO(nsanders): ARM generic doesn't build chromeos-u-boot package. |
| # When ARM generic goes away, delete the test. |
| if ls "${SYSROOT}"/firmware/nv_image-*.bin >/dev/null 2>&1; then |
| echo "Copying netboot firmware nv_image-*.bin" |
| cp -v "${SYSROOT}"/firmware/nv_image-*.bin "netboot" |
| else |
| echo "Skipping netboot firmware: " \ |
| "${SYSROOT}/firmware/nv_image-*.bin not present?" |
| fi |
| |
| # Create temporary emerge root |
| temp_build_path="$(mktemp -d bk_XXXXXXXX)" |
| if ! [ -d "${temp_build_path}" ]; then |
| echo "Failed to create temporary directory." |
| exit 1 |
| fi |
| |
| # Build initramfs network boot image |
| echo "Building kernel" |
| export USE="fbconsole vtconsole netboot_ramfs tpm i2cdev vfat" |
| export EMERGE_BOARD_CMD="emerge-${FLAGS_board}" |
| emerge_custom_kernel ${temp_build_path} |
| |
| # Place kernel image under 'netboot' |
| echo "Generating netboot kernel vmlinux.uimg/vmlinux.bin" |
| if [ "${ARCH}" = "arm" ]; then |
| cp "${temp_build_path}"/boot/vmlinux.uimg netboot/ |
| cp netboot/vmlinux.uimg netboot/vmlinux.bin |
| else |
| # U-boot put kernel image at 0x100000. We load it at 0x3000000 because |
| # 0x3000000 is safe enough not to overlap with image at 0x100000. |
| mkimage -A x86 -O linux -T kernel -n "Linux kernel" -C none \ |
| -d "${temp_build_path}"/boot/vmlinuz \ |
| -a 0x03000000 -e 0x03000000 netboot/vmlinux.uimg |
| cp "${temp_build_path}"/boot/vmlinuz netboot/vmlinux.bin |
| fi |
| |
| sudo rm -rf "${temp_build_path}" |