mirror of
https://github.com/flatcar/scripts.git
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72 lines
2.8 KiB
Bash
Executable File
72 lines
2.8 KiB
Bash
Executable File
# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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create_base_image() {
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local image_name=$1
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local disk_layout=$2
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local update_group="$3"
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local disk_img="${BUILD_DIR}/${image_name}"
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local root_fs_dir="${BUILD_DIR}/rootfs"
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info "Using image type ${disk_layout}"
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"${BUILD_LIBRARY_DIR}/disk_util" --disk_layout="${disk_layout}" \
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format "${disk_img}"
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"${BUILD_LIBRARY_DIR}/disk_util" --disk_layout="${disk_layout}" \
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mount "${disk_img}" "${root_fs_dir}"
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trap "cleanup_mounts '${root_fs_dir}' && delete_prompt" EXIT
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# First thing first, install baselayout with USE=build to create a
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# working directory tree. Don't use binpkgs due to the use flag change.
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sudo -E USE=build "emerge-${BOARD}" --root="${root_fs_dir}" \
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--usepkg=n --buildpkg=n --oneshot --quiet --nodeps sys-apps/baselayout
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# FIXME(marineam): Work around glibc setting EROOT=$ROOT
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# https://bugs.gentoo.org/show_bug.cgi?id=473728#c12
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sudo mkdir -p "${root_fs_dir}/etc/ld.so.conf.d"
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# We "emerge --root=${root_fs_dir} --root-deps=rdeps --usepkgonly" all of the
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# runtime packages for chrome os. This builds up a chrome os image from
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# binary packages with runtime dependencies only. We use INSTALL_MASK to
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# trim the image size as much as possible.
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emerge_prod_gcc --root="${root_fs_dir}"
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emerge_to_image --root="${root_fs_dir}" ${BASE_PACKAGE}
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# Make sure profile.env and ld.so.cache has been generated
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sudo ROOT="${root_fs_dir}" env-update
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# Record directories installed to the state partition.
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# Explicitly ignore entries covered by existing configs.
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local tmp_ignore=$(awk '/^[dDfFL]/ {print "--ignore=" $2}' \
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"${root_fs_dir}"/usr/lib/tmpfiles.d/*.conf)
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sudo "${BUILD_LIBRARY_DIR}/gen_tmpfiles.py" --root="${root_fs_dir}" \
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--output="${root_fs_dir}/usr/lib/tmpfiles.d/base_image_var.conf" \
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${tmp_ignore} "${root_fs_dir}/var"
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sudo "${BUILD_LIBRARY_DIR}/gen_tmpfiles.py" --root="${root_fs_dir}" \
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--output="${root_fs_dir}/usr/lib/tmpfiles.d/base_image_etc.conf" \
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${tmp_ignore} "${root_fs_dir}/etc"
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# Set /etc/lsb-release on the image.
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"${BUILD_LIBRARY_DIR}/set_lsb_release" \
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--root="${root_fs_dir}" \
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--group="${update_group}" \
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--board="${BOARD}"
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${BUILD_LIBRARY_DIR}/configure_bootloaders.sh \
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--arch=${ARCH} \
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--disk_layout="${disk_layout}" \
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--boot_dir="${root_fs_dir}"/usr/boot \
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--esp_dir="${root_fs_dir}"/boot/efi \
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--boot_args="${FLAGS_boot_args}"
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# Zero all fs free space to make it more compressible so auto-update
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# payloads become smaller, not fatal since it won't work on linux < 3.2
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sudo fstrim "${root_fs_dir}" || true
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sudo fstrim "${root_fs_dir}/usr" || true
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cleanup_mounts "${root_fs_dir}"
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trap - EXIT
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}
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