The Source Slot owner is Invalid

Movement of media from the source I/E slot is not allowed because the slot is not owned by the system partition:
Change the ownership of the slot to the system partition by following these steps:
  1. Remove the tape from the I/E slot.
  2. Close the I/E door and let the library scan the I/E slots.
  3. Open the I/E door and put the tape back in the top slot.
  4. Close the I/E door and let the library rescan the I/E slots.
  5. If Auto Assigment is disabled, select the system partition
  6. Try the operation again.