86 lines
3.1 KiB
Bash
Executable File
86 lines
3.1 KiB
Bash
Executable File
#!/bin/bash -e
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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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rm -f "${IMG_FILE}"
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rm -rf "${ROOTFS_DIR}"
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mkdir -p "${ROOTFS_DIR}"
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BOOT_SIZE="$((512 * 1024 * 1024))"
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RECOVERY_SIZE="$((256 * 1024 * 1024))"
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ROOT_SIZE=$(du -x --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --exclude boot/firmware --block-size=1 | cut -f 1)
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# All partition sizes and starts will be aligned to this size
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ALIGN="$((8 * 1024 * 1024))"
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ROOT_MARGIN="$(echo "($ROOT_SIZE * 0.2 + 400 * 1024 * 1024) / 1" | bc)"
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BOOT_PART_START=$((ALIGN))
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BOOT_PART_SIZE=$(((BOOT_SIZE + ALIGN - 1) / ALIGN * ALIGN))
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RECOVERY_PART_START=$((BOOT_PART_START + BOOT_PART_SIZE))
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RECOVERY_PART_SIZE=$(((RECOVERY_SIZE + ALIGN - 1) / ALIGN * ALIGN))
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ROOT_PART_START=$((RECOVERY_PART_START + RECOVERY_PART_SIZE))
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ROOT_PART_SIZE=$(((ROOT_SIZE + ROOT_MARGIN + ALIGN - 1) / ALIGN * ALIGN))
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IMG_SIZE=$((BOOT_PART_START + BOOT_PART_SIZE + RECOVERY_PART_SIZE + ROOT_PART_SIZE))
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echo "Estimated sizes:"
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echo " Boot partition: $((BOOT_PART_SIZE / 1024 / 1024))MB"
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echo " Root partition: $((ROOT_PART_SIZE / 1024 / 1024))MB"
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echo " Recovery partition: $((RECOVERY_PART_SIZE / 1024 / 1024))MB"
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echo " Total image size: $((IMG_SIZE / 1024 / 1024))MB"
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truncate -s "${IMG_SIZE}" "${IMG_FILE}"
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parted --script "${IMG_FILE}" mklabel msdos
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parted --script "${IMG_FILE}" unit B mkpart primary fat32 "${BOOT_PART_START}" "$((BOOT_PART_START + BOOT_PART_SIZE - 1))"
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parted --script "${IMG_FILE}" unit B mkpart primary ext4 "${RECOVERY_PART_START}" "$((RECOVERY_PART_START + RECOVERY_PART_SIZE - 1))"
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parted --script "${IMG_FILE}" unit B mkpart primary ext4 "${ROOT_PART_START}" "$((ROOT_PART_START + ROOT_PART_SIZE - 1))"
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echo "Creating loop device..."
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cnt=0
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until ensure_next_loopdev && LOOP_DEV="$(losetup --show --find --partscan "$IMG_FILE")"; do
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if [ $cnt -lt 5 ]; then
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cnt=$((cnt + 1))
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echo "Error in losetup. Retrying..."
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sleep 5
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else
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echo "ERROR: losetup failed; exiting"
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exit 1
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fi
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done
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ensure_loopdev_partitions "$LOOP_DEV"
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BOOT_DEV="${LOOP_DEV}p1"
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RECOVERY_DEV="${LOOP_DEV}p2"
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ROOT_DEV="${LOOP_DEV}p3"
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ROOT_FEATURES="^huge_file"
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for FEATURE in 64bit; do
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if grep -q "$FEATURE" /etc/mke2fs.conf; then
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ROOT_FEATURES="^$FEATURE,$ROOT_FEATURES"
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fi
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done
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if [ "$BOOT_SIZE" -lt 134742016 ]; then
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FAT_SIZE=16
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else
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FAT_SIZE=32
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fi
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mkdosfs -n bootfs -F "$FAT_SIZE" -s 4 -v "$BOOT_DEV" > /dev/null
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mkfs.ext4 -L recovery -O "$ROOT_FEATURES" "$RECOVERY_DEV" > /dev/null
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mkfs.ext4 -L rootfs -O "$ROOT_FEATURES" "$ROOT_DEV" > /dev/null
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mount -v "$ROOT_DEV" "${ROOTFS_DIR}" -t ext4
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mkdir -p "${ROOTFS_DIR}/boot/firmware"
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mount -v "$BOOT_DEV" "${ROOTFS_DIR}/boot/firmware" -t vfat
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#mkdir -p "${ROOTFS_DIR}/recovery"
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#mount -v "$RECOVERY_DEV" "${ROOTFS_DIR}/recovery" -t ext4
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rsync -aHAXx --exclude /var/cache/apt/archives --exclude /boot/firmware "${EXPORT_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
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rsync -rtx "${EXPORT_ROOTFS_DIR}/boot/firmware/" "${ROOTFS_DIR}/boot/firmware/"
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#rsync -aHAXx "${EXPORT_ROOTFS_DIR}/recovery/" "${ROOTFS_DIR}/recovery/"
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echo "Image created with boot, rootfs, and 256MB recovery partition." |