clic-rpi-image/export-image/prerun.sh
Sam Tygier 82bcfa427a Use different rsync options for boot and root
When copying files to boot, options that are not supported on fat32 can cause errors. For example owner, group and xattrs.
2019-02-18 09:45:10 +00:00

70 lines
2 KiB
Bash
Executable file

#!/bin/bash -e
IMG_FILE="${STAGE_WORK_DIR}/${IMG_FILENAME}${IMG_SUFFIX}.img"
unmount_image "${IMG_FILE}"
rm -f "${IMG_FILE}"
rm -rf "${ROOTFS_DIR}"
mkdir -p "${ROOTFS_DIR}"
BOOT_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}/boot" --block-size=1 | cut -f 1)
TOTAL_SIZE=$(du --apparent-size -s "${EXPORT_ROOTFS_DIR}" --exclude var/cache/apt/archives --block-size=1 | cut -f 1)
ROUND_SIZE="$((4 * 1024 * 1024))"
ROUNDED_ROOT_SECTOR=$(((2 * BOOT_SIZE + ROUND_SIZE) / ROUND_SIZE * ROUND_SIZE / 512 + 8192))
IMG_SIZE=$(((BOOT_SIZE + TOTAL_SIZE + (800 * 1024 * 1024) + ROUND_SIZE - 1) / ROUND_SIZE * ROUND_SIZE))
truncate -s "${IMG_SIZE}" "${IMG_FILE}"
fdisk -H 255 -S 63 "${IMG_FILE}" <<EOF
o
n
8192
+$((BOOT_SIZE * 2 /512))
p
t
c
n
${ROUNDED_ROOT_SECTOR}
p
w
EOF
PARTED_OUT=$(parted -s "${IMG_FILE}" unit b print)
BOOT_OFFSET=$(echo "$PARTED_OUT" | grep -e '^ 1'| xargs echo -n \
| cut -d" " -f 2 | tr -d B)
BOOT_LENGTH=$(echo "$PARTED_OUT" | grep -e '^ 1'| xargs echo -n \
| cut -d" " -f 4 | tr -d B)
ROOT_OFFSET=$(echo "$PARTED_OUT" | grep -e '^ 2'| xargs echo -n \
| cut -d" " -f 2 | tr -d B)
ROOT_LENGTH=$(echo "$PARTED_OUT" | grep -e '^ 2'| xargs echo -n \
| cut -d" " -f 4 | tr -d B)
BOOT_DEV=$(losetup --show -f -o "${BOOT_OFFSET}" --sizelimit "${BOOT_LENGTH}" "${IMG_FILE}")
ROOT_DEV=$(losetup --show -f -o "${ROOT_OFFSET}" --sizelimit "${ROOT_LENGTH}" "${IMG_FILE}")
echo "/boot: offset $BOOT_OFFSET, length $BOOT_LENGTH"
echo "/: offset $ROOT_OFFSET, length $ROOT_LENGTH"
ROOT_FEATURES="^huge_file"
for FEATURE in metadata_csum 64bit; do
if grep -q "$FEATURE" /etc/mke2fs.conf; then
ROOT_FEATURES="^$FEATURE,$ROOT_FEATURES"
fi
done
mkdosfs -n boot -F 32 -v "$BOOT_DEV" > /dev/null
mkfs.ext4 -L rootfs -O "$ROOT_FEATURES" "$ROOT_DEV" > /dev/null
mount -v "$ROOT_DEV" "${ROOTFS_DIR}" -t ext4
mkdir -p "${ROOTFS_DIR}/boot"
mount -v "$BOOT_DEV" "${ROOTFS_DIR}/boot" -t vfat
rsync -aHAXx --exclude /var/cache/apt/archives --exclude /boot "${EXPORT_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
rsync -rtx "${EXPORT_ROOTFS_DIR}/boot/" "${ROOTFS_DIR}/boot/"