mirror of
https://github.com/flatcar/scripts.git
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93 lines
3.0 KiB
Bash
Executable File
93 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Generate a parallels compatible disk with XML format. qemu-img does not currently
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# support the XML disk format. If changes in the future this script can replaced simply
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# by a qemu-img convert.
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SCRIPT_ROOT=$(readlink -f $(dirname "$0")/..)
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. "${SCRIPT_ROOT}/common.sh" || exit 1
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. "${BUILD_LIBRARY_DIR}/build_image_util.sh" || exit 1
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DEFINE_string input_disk_image "" "Disk image to convert from, required."
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DEFINE_string input_disk_format "raw" "Disk image format."
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DEFINE_string output_disk "" "Path to the output disk, required."
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# Parse command line
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FLAGS "$@" || exit 1
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eval set -- "${FLAGS_ARGV}"
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# Die on any errors.
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switch_to_strict_mode
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if [[ ! -e "${FLAGS_input_disk_image}" ]]; then
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echo "No such disk image '${FLAGS_input_disk_image}'" >&2
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exit 1
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fi
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rm -fr "${FLAGS_output_disk}"
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mkdir -p "${FLAGS_output_disk}"
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disk_name=$(basename "${FLAGS_output_disk}")
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touch "${FLAGS_output_disk}"/"${disk_name}"
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# this id is a constant and identifies the first snapshot of a disk
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snapshot_uuid="{5fbaabe3-6958-40ff-92a7-860e329aab41}"
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snapshot_name="${disk_name}".0.${snapshot_uuid}.hds
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snapshot_path="${FLAGS_output_disk}"/"${snapshot_name}"
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qemu-img convert -f "${FLAGS_input_disk_format}" "${FLAGS_input_disk_image}" \
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-O parallels "${snapshot_path}"
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assert_image_size "${snapshot_path}" parallels
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DISK_VIRTUAL_SIZE_BYTES=$(qemu-img info -f parallels --output json \
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"${snapshot_path}" | jq --raw-output '.["virtual-size"]')
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if [[ -z "${DISK_VIRTUAL_SIZE_BYTES}" ]]; then
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echo "Unable to determine virtual size of '${snapshot_path}'" >&2
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exit 1
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fi
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cat >"${FLAGS_output_disk}"/DiskDescriptor.xml <<EOF
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<?xml version='1.0' encoding='UTF-8'?>
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<Parallels_disk_image Version="1.0">
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<Disk_Parameters>
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<Disk_size>$((DISK_VIRTUAL_SIZE_BYTES / 16 / 32))</Disk_size>
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<Cylinders>$((DISK_VIRTUAL_SIZE_BYTES / 16 / 32 / 512))</Cylinders>
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<PhysicalSectorSize>512</PhysicalSectorSize>
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<Heads>16</Heads>
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<Sectors>32</Sectors>
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<Padding>0</Padding>
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<Encryption>
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<Engine>{00000000-0000-0000-0000-000000000000}</Engine>
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<Data></Data>
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</Encryption>
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<UID>{$(uuidgen)}</UID>
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<Name>coreos</Name>
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<Miscellaneous>
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<CompatLevel>level2</CompatLevel>
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<Bootable>1</Bootable>
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<SuspendState>0</SuspendState>
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</Miscellaneous>
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</Disk_Parameters>
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<StorageData>
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<Storage>
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<Start>0</Start>
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<End>$((DISK_VIRTUAL_SIZE_BYTES / 16 / 32))</End>
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<Blocksize>2048</Blocksize>
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<Image>
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<GUID>${snapshot_uuid}</GUID>
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<Type>Compressed</Type>
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<File>${disk_name}.0.${snapshot_uuid}.hds</File>
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</Image>
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</Storage>
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</StorageData>
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<Snapshots>
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<Shot>
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<GUID>${snapshot_uuid}</GUID>
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<ParentGUID>{00000000-0000-0000-0000-000000000000}</ParentGUID>
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</Shot>
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</Snapshots>
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</Parallels_disk_image>
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EOF
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