You're likely getting the permission denied error because you haven't rooted (gained access to the root directory as the administrative user, "root") the Novel yet. You should check out the Slatedroid forums for all community work on the PDN.
Forum: Pandigital Novel Android Tablet Discussion
Specifically, post #66 on page 7 of the topic
pandigital novel rooted is what helped me the most.
Keep at it! You're almost there!