Originally Posted by spec
The above article will not work if your nook came with 1.5 from b&n. My understanding is not all nooks are rootable. 1.4.1 1.4.2 are rootable using that method but the bug allowing to use that method has been fixed in firmware 1.5. On top of that, the above method doesnt enable downgrading to 1.0.0 and installing unsigned updates. All it does is it starts adbd so that you can connect to your nook via adb and install apps this way.
I rooted my 1.5 upgrade using Nomad's server. He's updated it to deal with 1.5. I Changed my router's hosts file to swap his server for B&N and bob's yer uncle.
126.96.36.199 sync.barnesandnoble.com edmfiletransfer.barnesandnoble.com
It installs a program, net.runserver.nookRoot.apk, that you use once to start adbd, then delete.