burrow-pi-img/export-image/prerun.sh

53 lines
972 B
Bash
Executable File

#!/bin/bash -e
IMG_FILE="${STAGE_WORK_DIR}/${IMG_NAME}${IMG_SUFFIX}.img"
echo "Doing cleanup first"
unmount_image ${IMG_FILE}
rm -f ${IMG_FILE}
rm -rf ${ROOTFS_DIR}
echo "Cleanup done"
mkdir -p ${ROOTFS_DIR}
BOOT_SIZE=$(du -sh ${EXPORT_ROOTFS_DIR}/boot -B M | cut -f 1 | tr -d M)
TOTAL_SIZE=$(du -sh ${EXPORT_ROOTFS_DIR} -B M | cut -f 1 | tr -d M)
IMG_SIZE=$(expr $BOOT_SIZE \* 2 \+ $TOTAL_SIZE \+ 512)M
fallocate -l ${IMG_SIZE} ${IMG_FILE}
fdisk ${IMG_FILE} > /dev/null 2>&1 <<EOF
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+`expr $BOOT_SIZE \* 3`M
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n
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EOF
LOOP_DEV=`kpartx -asv ${IMG_FILE} | grep -E -o -m1 'loop[[:digit:]]+' | head -n 1`
BOOT_DEV=/dev/mapper/${LOOP_DEV}p1
ROOT_DEV=/dev/mapper/${LOOP_DEV}p2
mkdosfs -n boot -S 512 -s 16 -v $BOOT_DEV > /dev/null
mkfs.ext4 -O ^huge_file $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 ${EXPORT_ROOTFS_DIR}/ ${ROOTFS_DIR}/ -aHAX