First time rails install, help with gems/rake

Hello all,     I just did a first time ruby enterprise edition, installed some gems, and now I'm trying to do a ' sudo ./rake gems:install' and getting a: rake aborted!
No Rakefile found

error. Firstly, what directory should I be doing this from?

You should be doing it from the root directory of a Rails app (in other words, the one with app/, config/, db/, log/, lib/, vendor/ etc).

If you're someplace where you can do ./rake and have it work, you're *definitely* in the wrong place.

--Matt Jones