Just a quick note.
Be sure to use v1.0.31 of adb or greater, or it will not see your device.
Also, in my bootimg_tools_ovation are the files necessary to get adb working in linux.
(the "hidden" .android folder gets copied to home, and the rules file to /etc/udev).
Someone really should make a live linux usb/flash image with working adb for the nook. (Just boot from usb key and have working adb)
Wouldn't be that difficult.