If you wanted to play A pentatonic minor instead of E pentatonic minor, you would have to move the first position that starts with the low E note up 5 frets so that the first note of position 1 is the A note. All other positions would have to slide up the neck 5 frets also, so that their relation to each other is still the same. Naturally, anything that slides up past the octave (12th fret) will also appear at the bottom of the neck, as they are the same notes.
If you have already learned E pentatonic minor (and you should have if you are here) you can study the diagram below and you can see exactly what I am talking about. Our root note will now be A, and thats where the first position will start.

Notice that even the root notes are in exactly the same place in the positions as they were before, the only thing thats changed is we slid the whole thing up 5 frets.
You would now be playing "A pentatonic minor".
