Unverified Commit fb8fe23f authored by Kroese's avatar Kroese Committed by GitHub
Browse files

Allow disk resizing 

Allow disk resizing
parent 174c335b

disk.sh

+28 −18
Original line number Diff line number Diff line
@@ -12,9 +12,9 @@ DISK_SIZE=$(echo "${DISK_SIZE}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g') 


[ -f "$IMG/data$DISK_SIZE.img" ] && mv -f "$IMG/data$DISK_SIZE.img" "${DATA}"



NEW_SIZE=$(numfmt --from=iec "${DISK_SIZE}")

DATA_SIZE=$(numfmt --from=iec "${DISK_SIZE}")



if (( NEW_SIZE < 6442450944 )); then

if (( DATA_SIZE < 6442450944 )); then

  echo "ERROR: Please increase DISK_SIZE to at least 6 GB." && exit 83

fi
@@ -22,16 +22,26 @@ if [ -f "${DATA}" ]; then 


  OLD_SIZE=$(stat -c%s "${DATA}")



  # Resize disk to new size if needed

  if [ "$DATA_SIZE" -gt "$OLD_SIZE" ]; then



  if [ "$NEW_SIZE" -ne "$OLD_SIZE" ]; then

    echo "Resizing data disk from $OLD_SIZE to $DATA_SIZE bytes.."

           

    REQ=$((DATA_SIZE-OLD_SIZE))

      

    # Check free diskspace    

    SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)

      

    if (( REQ > SPACE )); then

      echo "ERROR: Not enough free space to resize virtual disk." && exit 84

    fi



    if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then

      echo "ERROR: Could not allocate file for virtual disk." && exit 85

    fi

      

    if [ "$NEW_SIZE" -gt "$OLD_SIZE" ]; then

      echo "Resizing data disk from $OLD_SIZE to $NEW_SIZE bytes.."

      fallocate -l "${NEW_SIZE}" "${DATA}"

  fi



    if [ "$NEW_SIZE" -lt "$OLD_SIZE" ]; then

  if [ "$DATA_SIZE" -lt "$OLD_SIZE" ]; then



    echo "INFO: Shrinking existing disks is not supported yet!"

    echo "INFO: Creating backup of old drive in storage folder..."
@@ -39,7 +49,7 @@ if [ -f "${DATA}" ]; then 
    mv -f "${DATA}" "${DATA}.bak"



  fi

  fi

  

fi



if [ ! -f "${DATA}" ]; then
@@ -47,19 +57,19 @@ if [ ! -f "${DATA}" ]; then 
  # Check free diskspace

  SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)



  if (( NEW_SIZE > SPACE )); then

    echo "ERROR: Not enough free space to create virtual disk." && exit 84

  if (( DATA_SIZE > SPACE )); then

    echo "ERROR: Not enough free space to create virtual disk." && exit 86

  fi



  # Create an empty file

  if ! fallocate -l "${NEW_SIZE}" "${DATA}"; then

  if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then

    rm -f "${DATA}"

    echo "ERROR: Could not allocate file for virtual disk." && exit 85

    echo "ERROR: Could not allocate file for virtual disk." && exit 87

  fi



  # Check if file exists

  if [ ! -f "${DATA}" ]; then

    echo "ERROR: Virtual DSM data disk does not exist ($DATA)" && exit 86

    echo "ERROR: Virtual DSM data disk does not exist ($DATA)" && exit 88

  fi



  # Format as BTRFS filesystem