I am not sure if this is the correct place to put this forum anyways, I was having an issue trying to use ADB. I read all the forums and nothing would help connect it but I finally found a site that helped.
If any of you are having an issue with ADB with the Nook HD+, run this command in terminal,
mkdir -p ~/.android && echo 0x2080 > ~/.android/adb_usb.ini && adb kill-server && adb devices
after doing this, I finally got my laptop to detect my nook.
I got this from:
nookdevs [dot] com at the adb over usb section
so all credit goes to them.
They also have some other useful troubleshooting tips if any issues.
I hope this can help someone out.