[Q] rooting without an sd card

[chukk98]

The first methods of rooting a Nook was without a SD card.......... you put a file in the root directory of your Nook via USB. I have a Nook color with a broken SD card slot (next question was if anyone had a broken Nook I could buy with a intact SD slot that I can cannibalize) I want to root it. Does anyone remember the procedure and/or have the file? It (the Nook) otherwise works fine, and USB works fine as well. Any info would be appreciated.