Export stage completely reworked, uses qemu-img commit now
Holger Pandel
parent
53de9f344c
commit
4ea3675b52
82
build.sh
82
build.sh
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@ -1,7 +1,5 @@
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#!/bin/bash -e
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#set -x
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# shellcheck disable=SC2119
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run_sub_stage()
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{
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@ -106,8 +104,11 @@ run_stage(){
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load_qimage
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fi
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else
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# make sure we are not umounting during export-image stage
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if [ "${USE_QCOW2}" = "0" ] && [ "${NO_PRERUN_QCOW2}" = "0" ]; then
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unmount "${WORK_DIR}/${STAGE}"
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fi
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fi
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if [ ! -f SKIP_IMAGES ]; then
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if [ -f "${STAGE_DIR}/EXPORT_IMAGE" ]; then
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@ -136,8 +137,11 @@ run_stage(){
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if [ "${USE_QCOW2}" = "1" ]; then
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unload_qimage
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else
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# make sure we are not umounting during export-image stage
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if [ "${USE_QCOW2}" = "0" ] && [ "${NO_PRERUN_QCOW2}" = "0" ]; then
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unmount "${WORK_DIR}/${STAGE}"
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fi
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fi
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PREV_STAGE="${STAGE}"
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PREV_STAGE_DIR="${STAGE_DIR}"
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@ -245,9 +249,17 @@ source "${SCRIPT_DIR}/common"
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# shellcheck source=scripts/dependencies_check
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source "${SCRIPT_DIR}/dependencies_check"
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export NO_PRERUN_QCOW2="${NO_PRERUN_QCOW2:-1}"
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export USE_QCOW2="${USE_QCOW2:-1}"
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export BASE_QCOW2_SIZE=${BASE_QCOW2_SIZE:-12G}
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source "${SCRIPT_DIR}/qcow2_handling"
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if [ "${USE_QCOW2}" = "1" ]; then
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NO_PRERUN_QCOW2=1
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else
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NO_PRERUN_QCOW2=0
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fi
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export NO_PRERUN_QCOW2="${NO_PRERUN_QCOW2:-1}"
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dependencies_check "${BASE_DIR}/depends"
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@ -278,14 +290,70 @@ for EXPORT_DIR in ${EXPORT_DIRS}; do
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# shellcheck source=/dev/null
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source "${EXPORT_DIR}/EXPORT_IMAGE"
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EXPORT_ROOTFS_DIR=${WORK_DIR}/$(basename "${EXPORT_DIR}")/rootfs
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QIMAGE="image-$(basename "${EXPORT_DIR}").qcow2"
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if [ "${USE_QCOW2}" = "1" ]; then
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USE_QCOW2=0
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mount_qimage "${WORK_DIR}/${QIMAGE}" "${EXPORT_ROOTFS_DIR}"
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echo "Mounting image ${WORK_DIR}/${QIMAGE} to export rootfs ${EXPORT_ROOTFS_DIR}"
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EXPORT_NAME="${IMG_FILENAME}${IMG_SUFFIX}"
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echo "------------------------------------------------------------------------"
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echo "Running export stage for ${EXPORT_NAME}"
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rm -f "${WORK_DIR}/export-image/${EXPORT_NAME}.img" || true
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rm -f "${WORK_DIR}/export-image/${EXPORT_NAME}.qcow2" || true
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rm -f "${WORK_DIR}/${EXPORT_NAME}.img" || true
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rm -f "${WORK_DIR}/${EXPORT_NAME}.qcow2" || true
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EXPORT_STAGE=$(basename "${EXPORT_DIR}")
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for s in $STAGE_LIST; do
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TMP_LIST=${TMP_LIST:+$TMP_LIST }$(basename "${s}")
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done
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FIRST_STAGE=${TMP_LIST%% *}
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FIRST_IMAGE="image-${FIRST_STAGE}.qcow2"
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pushd "${WORK_DIR}" > /dev/null
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echo "Creating new base "${EXPORT_NAME}.qcow2" from ${FIRST_IMAGE}"
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cp "./${FIRST_IMAGE}" "${EXPORT_NAME}.qcow2"
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ARR=($TMP_LIST)
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# rebase stage images to new export base
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for CURR_STAGE in "${ARR[@]}"; do
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if [ "${CURR_STAGE}" = "${FIRST_STAGE}" ]; then
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PREV_IMG="${EXPORT_NAME}"
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continue
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fi
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echo "Rebasing image-${CURR_STAGE}.qcow2 onto ${PREV_IMG}.qcow2"
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qemu-img rebase -f qcow2 -u -b ${PREV_IMG}.qcow2 image-${CURR_STAGE}.qcow2
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if [ "${CURR_STAGE}" = "${EXPORT_STAGE}" ]; then
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break
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fi
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PREV_IMG="image-${CURR_STAGE}"
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done
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# commit current export stage into base export image
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echo "Committing image-${EXPORT_STAGE}.qcow2 to ${EXPORT_NAME}.qcow2"
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qemu-img commit -f qcow2 -p -b "${EXPORT_NAME}.qcow2" image-${EXPORT_STAGE}.qcow2
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# rebase stage images back to original first stage for easy re-run
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for CURR_STAGE in "${ARR[@]}"; do
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if [ "${CURR_STAGE}" = "${FIRST_STAGE}" ]; then
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PREV_IMG="image-${CURR_STAGE}"
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continue
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fi
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echo "Rebasing back image-${CURR_STAGE}.qcow2 onto ${PREV_IMG}.qcow2"
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qemu-img rebase -f qcow2 -u -b ${PREV_IMG}.qcow2 image-${CURR_STAGE}.qcow2
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if [ "${CURR_STAGE}" = "${EXPORT_STAGE}" ]; then
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break
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fi
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PREV_IMG="image-${CURR_STAGE}"
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done
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popd > /dev/null
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mkdir -p "${WORK_DIR}/export-image/rootfs"
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mv "${WORK_DIR}/${EXPORT_NAME}.qcow2" "${WORK_DIR}/export-image/"
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echo "Mounting image ${WORK_DIR}/export-image/${EXPORT_NAME}.qcow2 to rootfs ${WORK_DIR}/export-image/rootfs"
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mount_qimage "${WORK_DIR}/export-image/${EXPORT_NAME}.qcow2" "${WORK_DIR}/export-image/rootfs"
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CLEAN=0
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run_stage
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unload_qimage
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CLEAN=1
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USE_QCOW2=1
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else
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run_stage
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fi
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@ -305,7 +373,7 @@ for EXPORT_DIR in ${EXPORT_DIRS}; do
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fi
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done
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if [ -x ${BASE_DIR}/postrun.sh ]; then
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if [ -x postrun.sh ]; then
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log "Begin postrun.sh"
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cd "${BASE_DIR}"
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./postrun.sh
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@ -1,5 +1,7 @@
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#!/bin/bash -e
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if [ "${NO_PRERUN_QCOW2}" = "0" ]; then
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IMG_FILE="${STAGE_WORK_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
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IMGID="$(dd if="${IMG_FILE}" skip=440 bs=1 count=4 2>/dev/null | xxd -e | cut -f 2 -d' ')"
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@ -11,3 +13,6 @@ sed -i "s/BOOTDEV/PARTUUID=${BOOT_PARTUUID}/" "${ROOTFS_DIR}/etc/fstab"
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sed -i "s/ROOTDEV/PARTUUID=${ROOT_PARTUUID}/" "${ROOTFS_DIR}/etc/fstab"
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sed -i "s/ROOTDEV/PARTUUID=${ROOT_PARTUUID}/" "${ROOTFS_DIR}/boot/cmdline.txt"
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fi
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@ -77,17 +77,24 @@ cp "$ROOTFS_DIR/etc/rpi-issue" "$INFO_FILE"
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dpkg -l --root "$ROOTFS_DIR"
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} >> "$INFO_FILE"
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mkdir -p "${DEPLOY_DIR}"
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rm -f "${DEPLOY_DIR}/${ZIP_FILENAME}${IMG_SUFFIX}.zip"
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rm -f "${DEPLOY_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
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mv "$INFO_FILE" "$DEPLOY_DIR/"
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if [ "${USE_QCOW2}" = "0" ] && [ "${NO_PRERUN_QCOW2}" = "0" ]; then
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ROOT_DEV="$(mount | grep "${ROOTFS_DIR} " | cut -f1 -d' ')"
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unmount "${ROOTFS_DIR}"
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zerofree "${ROOT_DEV}"
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unmount_image "${IMG_FILE}"
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mkdir -p "${DEPLOY_DIR}"
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rm -f "${DEPLOY_DIR}/${ZIP_FILENAME}${IMG_SUFFIX}.zip"
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rm -f "${DEPLOY_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
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else
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unload_qimage
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make_bootable_image "${STAGE_WORK_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.qcow2" "$IMG_FILE"
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fi
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if [ "${DEPLOY_ZIP}" == "1" ]; then
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pushd "${STAGE_WORK_DIR}" > /dev/null
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@ -95,16 +102,5 @@ if [ "${DEPLOY_ZIP}" == "1" ]; then
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"$(basename "${IMG_FILE}")"
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popd > /dev/null
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else
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if [ "${USE_QCOW2}" = "1" ]; then
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mv "$IMG_FILE" "$DEPLOY_DIR/"
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else
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cp "$IMG_FILE" "$DEPLOY_DIR"
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fi
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fi
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if [ "${USE_QCOW2}" = "1" ]; then
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mv "$INFO_FILE" "$DEPLOY_DIR/"
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else
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cp "$INFO_FILE" "$DEPLOY_DIR"
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fi
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@ -1,5 +1,6 @@
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#!/bin/bash -e
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if [ "${NO_PRERUN_QCOW2}" = "0" ]; then
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IMG_FILE="${STAGE_WORK_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
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unmount_image "${IMG_FILE}"
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@ -59,3 +60,4 @@ mount -v "$BOOT_DEV" "${ROOTFS_DIR}/boot" -t vfat
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rsync -aHAXx --exclude /var/cache/apt/archives --exclude /boot "${EXPORT_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
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rsync -rtx "${EXPORT_ROOTFS_DIR}/boot/" "${ROOTFS_DIR}/boot/"
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fi
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@ -3,12 +3,12 @@
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NOOBS_DIR="${STAGE_WORK_DIR}/${IMG_DATE}-${IMG_NAME}${IMG_SUFFIX}"
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mkdir -p "${STAGE_WORK_DIR}"
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if [ "${USE_QCOW2}" = "1" ]; then
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if [ "${DEPLOY_ZIP}" == "1" ]; then
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IMG_FILE="${WORK_DIR}/export-image/${IMG_FILENAME}${IMG_SUFFIX}.img"
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else
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cp "${WORK_DIR}/export-image/${IMG_FILENAME}${IMG_SUFFIX}.img" "${STAGE_WORK_DIR}/"
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IMG_FILE="${STAGE_WORK_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
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IMG_FILE="${DEPLOY_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
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fi
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unmount_image "${IMG_FILE}"
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rm -rf "${NOOBS_DIR}"
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@ -37,4 +37,8 @@ bsdtar --numeric-owner --format gnutar -C "${STAGE_WORK_DIR}/rootfs/boot" -cpf -
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umount "${STAGE_WORK_DIR}/rootfs/boot"
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bsdtar --numeric-owner --format gnutar -C "${STAGE_WORK_DIR}/rootfs" --one-file-system -cpf - . | xz -T0 > "${NOOBS_DIR}/root.tar.xz"
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if [ "${USE_QCOW2}" = "1" ]; then
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rm "$ROOTFS_DIR/etc/systemd/system/multi-user.target.wants/apply_noobs_os_config.service"
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fi
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unmount_image "${IMG_FILE}"
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@ -1,16 +1,20 @@
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#!/bin/bash
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# QCOW2 Routines
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export CURRENT_IMAGE
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export CURRENT_MOUNTPOINT
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export NBD_DEV
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export MAP_DEV
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export MAP_BOOT_DEV
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export MAP_ROOT_DEV
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# set in build.sh
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# should be fairly enough for the beginning
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# overwrite here by uncommenting following lines
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# BASE_QCOW2_SIZE=12G
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# find and initialize free block device nodes
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init_nbd() {
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modprobe nbd max_part=16
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if [ -z "${NBD_DEV}" ]; then
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S=`cat $x/size`
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if [ "$S" == "0" ] ; then
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NBD_DEV=/dev/$(basename $x)
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MAP_DEV=/dev/mapper/$(basename $x)p1
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MAP_BOOT_DEV=/dev/mapper/$(basename $x)p1
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MAP_ROOT_DEV=/dev/mapper/$(basename $x)p2
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break
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fi
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done
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fi
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}
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export -f init_nbd
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# mount qcow2 image: mount_image <image file> <mountpoint>
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mount_qimage() {
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# connect image to block device
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connect_blkdev() {
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init_nbd
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qemu-nbd --discard=unmap -c $NBD_DEV "$1"
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kpartx -a $NBD_DEV
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mount $MAP_DEV "$2"
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CURRENT_IMAGE="$1"
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}
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export -f connect_blkdev
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# disconnect image from block device
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disconnect_blkdev() {
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kpartx -d $NBD_DEV
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qemu-nbd -d $NBD_DEV
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NBD_DEV=
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MAP_BOOT_DEV=
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MAP_ROOT_DEV=
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CURRENT_IMAGE=
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}
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export -f disconnect_blkdev
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# mount qcow2 image: mount_image <image file> <mountpoint>
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mount_qimage() {
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connect_blkdev "$1"
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mount -v -t ext4 $MAP_ROOT_DEV "$2"
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mkdir -p "${ROOTFS_DIR}/boot"
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mount -v -t vfat $MAP_BOOT_DEV "$2/boot"
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CURRENT_MOUNTPOINT="$2"
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}
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export -f mount_qimage
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@ -39,16 +64,19 @@ export -f mount_qimage
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# umount qcow2 image: umount_image <current mountpoint>
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umount_qimage() {
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sync
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#umount "$1/boot"
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while mount | grep -q "$1"; do
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local LOCS
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LOCS=$(mount | grep "$1" | cut -f 3 -d ' ' | sort -r)
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for loc in $LOCS; do
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echo "$loc"
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umount "$loc"
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while mountpoint -q "$loc" && ! umount "$loc"; do
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sleep 0.1
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done
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done
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kpartx -d $NBD_DEV
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qemu-nbd -d $NBD_DEV
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done
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CURRENT_MOUNTPOINT=
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disconnect_blkdev
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}
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export -f umount_qimage
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@ -63,20 +91,29 @@ load_qimage() {
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pushd ${WORK_DIR} > /dev/null
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init_nbd
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if [ -z "${PREV_STAGE}" ]; then
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echo "Creating base image: image-${STAGE}.qcow2"
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# -o preallocation=falloc
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qemu-img create -f qcow2 image-${STAGE}.qcow2 $BASE_QCOW2_SIZE
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qemu-nbd --discard=unmap -c $NBD_DEV image-${STAGE}.qcow2
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echo 'type=83' | sfdisk $NBD_DEV
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sfdisk $NBD_DEV << EOF
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,250MiB,b
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,,83;
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EOF
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kpartx -a $NBD_DEV
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mkfs.ext4 $MAP_DEV
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mkdosfs -n boot -F 32 -v $MAP_BOOT_DEV
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mkfs.ext4 -L rootfs -O "^huge_file,^metadata_csum,^64bit" $MAP_ROOT_DEV
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else
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if [ ! -f "${WORK_DIR}/image-${PREV_STAGE}.qcow2" ]; then exit 1; fi
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echo "Creating backing image: image-${STAGE}.qcow2 <- ${WORK_DIR}/image-${PREV_STAGE}.qcow2"
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qemu-img create -f qcow2 \
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-o backing_file=${WORK_DIR}/image-${PREV_STAGE}.qcow2 \
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${WORK_DIR}/image-${STAGE}.qcow2
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qemu-nbd --discard=unmap -c $NBD_DEV image-${STAGE}.qcow2
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kpartx -a $NBD_DEV
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fi
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mount $MAP_DEV "${ROOTFS_DIR}"
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mount -v -t ext4 $MAP_ROOT_DEV "${ROOTFS_DIR}"
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mkdir -p "${ROOTFS_DIR}/boot"
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mount -v -t vfat $MAP_BOOT_DEV "${ROOTFS_DIR}/boot"
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CURRENT_IMAGE=${WORK_DIR}/image-${STAGE}.qcow2
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CURRENT_MOUNTPOINT=${ROOTFS_DIR}
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popd > /dev/null
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@ -93,8 +130,104 @@ unload_qimage() {
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if [ ! -z "${CURRENT_MOUNTPOINT}" ]; then
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fstrim -v "${CURRENT_MOUNTPOINT}" || true
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umount_qimage "${CURRENT_MOUNTPOINT}"
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CURRENT_IMAGE=""
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CURRENT_MOUNTPOINT=""
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fi
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}
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export -f unload_qimage
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# based on: https://github.com/SirLagz/RaspberryPi-ImgAutoSizer
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# helper function for make_bootable_image, do not call directly
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function resize_qcow2() {
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if [ -z "$CALL_FROM_MBI" ]; then echo "resize_qcow2: cannot be called directly, use make_bootable_image instead"; return 1; fi
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ROOT_MARGIN=$((800*1024*1024))
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PARTED_OUT=`parted -s -m "$NBD_DEV" unit B print`
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PART_NO=`echo "$PARTED_OUT" | grep ext4 | awk -F: ' { print $1 } '`
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PART_START=`echo "$PARTED_OUT" | grep ext4 | awk -F: ' { print substr($2,1,length($2)-1) } '`
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e2fsck -y -f $MAP_ROOT_DEV || true
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DATA_SIZE=`resize2fs -P $MAP_ROOT_DEV | awk -F': ' ' { print $2 } '`
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BLOCK_SIZE=$(dumpe2fs -h $MAP_ROOT_DEV | grep 'Block size' | awk -F': ' ' { print $2 }')
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BLOCK_SIZE=${BLOCK_SIZE// /}
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let DATA_SIZE=$DATA_SIZE+$ROOT_MARGIN/$BLOCK_SIZE
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resize2fs -p $MAP_ROOT_DEV $DATA_SIZE
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sleep 1
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let PART_NEW_SIZE=$DATA_SIZE*$BLOCK_SIZE
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let PART_NEW_END=$PART_START+$PART_NEW_SIZE
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ACT1=`parted -s "$NBD_DEV" rm 2`
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ACT2=`parted -s "$NBD_DEV" unit B mkpart primary $PART_START $PART_NEW_END`
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NEW_IMG_SIZE=`parted -s -m "$NBD_DEV" unit B print free | tail -1 | awk -F: ' { print substr($2,1,length($2)-1) } '`
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}
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export -f resize_qcow2
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# create raw img from qcow2: make_bootable_image <in.qcow2> <out.img>
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function make_bootable_image() {
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EXPORT_QCOW2="$1"
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EXPORT_IMAGE="$2"
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echo "Connect block device to source qcow2"
|
||||
connect_blkdev "${EXPORT_QCOW2}"
|
||||
|
||||
echo "Resize fs and partition"
|
||||
CALL_FROM_MBI=1
|
||||
resize_qcow2
|
||||
CALL_FROM_MBI=
|
||||
|
||||
echo "Disconnect block device"
|
||||
disconnect_blkdev
|
||||
|
||||
if [ -z "$NEW_IMG_SIZE" ]; then
|
||||
echo "NEW_IMG_SIZE could not be calculated, cannot process image. Exit."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo "Shrinking qcow2 image"
|
||||
qemu-img resize --shrink "${EXPORT_QCOW2}" $NEW_IMG_SIZE
|
||||
|
||||
echo "Convert qcow2 to raw image"
|
||||
qemu-img convert -f qcow2 -O raw "${EXPORT_QCOW2}" "${EXPORT_IMAGE}"
|
||||
|
||||
echo "Get PARTUUIDs from image"
|
||||
IMGID="$(blkid -o value -s PTUUID "${EXPORT_IMAGE}")"
|
||||
|
||||
BOOT_PARTUUID="${IMGID}-01"
|
||||
echo "Boot: $BOOT_PARTUUID"
|
||||
ROOT_PARTUUID="${IMGID}-02"
|
||||
echo "Root: $ROOT_PARTUUID"
|
||||
|
||||
echo "Mount image"
|
||||
MOUNTROOT=${WORK_DIR}/tmpimage
|
||||
mkdir -p $MOUNTROOT
|
||||
|
||||
MOUNTPT=$MOUNTROOT
|
||||
PARTITION=2
|
||||
mount "${EXPORT_IMAGE}" "$MOUNTPT" -o loop,offset=$[ `/sbin/sfdisk -d "${EXPORT_IMAGE}" | grep "start=" | head -n $PARTITION | tail -n1 | sed 's/.*start=[ ]*//' | sed 's/,.*//'` * 512 ],sizelimit=$[ `/sbin/sfdisk -d "${EXPORT_IMAGE}" | grep "start=" | head -n $PARTITION | tail -n1 | sed 's/.*size=[ ]*//' | sed 's/,.*//'` * 512 ] || exit 1
|
||||
|
||||
MOUNTPT=$MOUNTROOT/boot
|
||||
PARTITION=1
|
||||
mount "${EXPORT_IMAGE}" "$MOUNTPT" -o loop,offset=$[ `/sbin/sfdisk -d "${EXPORT_IMAGE}" | grep "start=" | head -n $PARTITION | tail -n1 | sed 's/.*start=[ ]*//' | sed 's/,.*//'` * 512 ],sizelimit=$[ `/sbin/sfdisk -d "${EXPORT_IMAGE}" | grep "start=" | head -n $PARTITION | tail -n1 | sed 's/.*size=[ ]*//' | sed 's/,.*//'` * 512 ] || exit 1
|
||||
|
||||
if [ ! -d "${MOUNTROOT}/root" ]; then
|
||||
echo "Image damaged or not mounted. Exit."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo "Setup PARTUUIDs"
|
||||
if [ ! -z "$BOOT_PARTUUID" ] && [ ! -z "$ROOT_PARTUUID" ]; then
|
||||
echo "Set UUIDs to make it bootable"
|
||||
sed -i "s/BOOTDEV/PARTUUID=${BOOT_PARTUUID}/" "${MOUNTROOT}/etc/fstab"
|
||||
sed -i "s/ROOTDEV/PARTUUID=${ROOT_PARTUUID}/" "${MOUNTROOT}/etc/fstab"
|
||||
sed -i "s/ROOTDEV/PARTUUID=${ROOT_PARTUUID}/" "${MOUNTROOT}/boot/cmdline.txt"
|
||||
fi
|
||||
|
||||
echo "Umount image"
|
||||
umount "${MOUNTROOT}/boot" || exit 1
|
||||
umount "${MOUNTROOT}" || exit 1
|
||||
|
||||
echo "Remove qcow2 export image"
|
||||
rm -f "${EXPORT_QCOW2}"
|
||||
}
|
||||
export -f make_bootable_image
|
||||
|
|
|
|||
Loading…
Reference in New Issue