Prepare image resizing

disk.sh

@@ -10,16 +10,35 @@ FILE="$IMG/$BASE.boot.img"
 FILE="$IMG/$BASE.system.img"
 [ ! -f "$FILE" ] && echo "ERROR: Virtual DSM system-image does not exist ($FILE)" && exit 82
 
+DISK_SIZE=$(echo "${DISK_SIZE}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
+NEW_SIZE=$(numfmt --from=iec "${DISK_SIZE}")
+
 FILE="$IMG/data$DISK_SIZE.img"
 
 if [ ! -f "$FILE" ]; then
-    truncate -s "$DISK_SIZE" "$FILE"
-    mkfs.btrfs -q -L data -d single -m single "$FILE" > /dev/null
+    truncate -s "${NEW_SIZE}" "${FILE}"
+    mkfs.btrfs -q -L data -d single -m single "${FILE}" > /dev/null
     #qemu-img convert -f raw -O qcow2 -o extended_l2=on,cluster_size=128k,compression_type=zstd,preallocation=metadata "$TMP" "$FILE"
 fi
 
 [ ! -f "$FILE" ] && echo "ERROR: Virtual DSM data-image does not exist ($FILE)" && exit 83
 
+#OLD_SIZE=$(stat -c%s "${FILE}")
+#
+#if [ "$NEW_SIZE" -ne "$OLD_SIZE" ]; then
+#  echo "Resizing data disk from $OLD_SIZE to $NEW_SIZE bytes"
+#
+#  if [ "$NEW_SIZE" -gt "$OLD_SIZE" ]; then
+#    truncate -s "${NEW_SIZE}" "${FILE}"
+#    btrfs filesystem resize "${NEW_SIZE}" "${FILE}"
+#  fi
+#
+#  if [ "$NEW_SIZE" -lt "$OLD_SIZE" ]; then
+#    btrfs filesystem resize "${NEW_SIZE}" "${FILE}"
+#    truncate -s "${NEW_SIZE}" "${FILE}"
+#  fi
+#fi
+
 KVM_DISK_OPTS="\
     -device virtio-scsi-pci,id=hw-synoboot,bus=pcie.0,addr=0xa \
     -drive file=${IMG}/${BASE}.boot.img,if=none,id=drive-synoboot,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \