Learn one scale at a time, throughout the entire fretboard. The whole "patterns" thing is bull****, it's just to help kids remember the scales. In a week or maybe two weeks, you should know the scale to the point where you can remember the notes in your sleep.

There is no point in "Knowing C Major in two patterns" or anything that limits the amount of the fretboard you use; if you aren't going to learn it all, there's no point in learning it, trust me on this one.
I have a friend who is not very good at guitar, but he knows "some positions of the scales", and let me tell you, after listening to hear him play for 5 minutes, you'd rather want to hear nails on a chalkboard. Nothing is more annoying than guitarists using the same patterns on the same octaves on the same positions again.

Me? I know all the western scales, modes, and about 30 eastern scales, by heart. I used to dream about the scales, and practice them constantly (5 hours a day) until each scale was engraved in my head. After you know all of that, then you have to go back to step one and take a look at what each note means, relative to each chord.

If you find a song that has both C-Minor and A-Minor in it, tell me because it most definitely is a rare find. I've seen a few tunes with it, but it's not something you see everyday.

~Incidents