1377e903b8
Although the loop block device is created before attaching the image to it, the devices for the partition that the image contains are still not created. This patch creates those devices as well, when they are not already available. Fixes #482 Signed-off-by: Vasilis Tsiligiannis <acinonyx@openwrt.gr>
69 lines
2.4 KiB
Bash
Executable File
69 lines
2.4 KiB
Bash
Executable File
#!/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 "${IMG_FILE}"
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rm -f "${IMG_FILE}"
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rm -rf "${ROOTFS_DIR}"
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mkdir -p "${ROOTFS_DIR}"
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BOOT_SIZE="$((512 * 1024 * 1024))"
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ROOT_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --exclude boot/firmware --block-size=1 | cut -f 1)
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# All partition sizes and starts will be aligned to this size
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ALIGN="$((4 * 1024 * 1024))"
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# Add this much space to the calculated file size. This allows for
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# some overhead (since actual space usage is usually rounded up to the
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# filesystem block size) and gives some free space on the resulting
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# image.
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ROOT_MARGIN="$(echo "($ROOT_SIZE * 0.2 + 200 * 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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ROOT_PART_START=$((BOOT_PART_START + BOOT_PART_SIZE))
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ROOT_PART_SIZE=$(((ROOT_SIZE + ROOT_MARGIN + ALIGN - 1) / ALIGN * ALIGN))
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IMG_SIZE=$((BOOT_PART_START + BOOT_PART_SIZE + ROOT_PART_SIZE))
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truncate -s "${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 "${ROOT_PART_START}" "$((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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ROOT_DEV="${LOOP_DEV}p2"
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ROOT_FEATURES="^huge_file"
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for FEATURE in 64bit; do
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if grep -q "$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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mkdosfs -n bootfs -F 32 -s 4 -v "$BOOT_DEV" > /dev/null
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mkfs.ext4 -L rootfs -O "$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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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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fi
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