It seems as if you have confused the hardware (emonPi1, emonPi2, laptop) and the software (emonCMS). emonCMS will run on whichever hardware it will run on, and do exactly the same things.
It should work, but I had trouble and I’ve seen a recent report that some commands don’t work when using a terminal program on a laptop. If it appears not to work, experiment with different baud rates (should be 115200) and different line endings (CR, LF, both). See
CT Calibration selection from Pi2 - #4 by Robert.Wall and following posts, and I had the trouble with the Arduino IDE and an emonTx4 - in both cases the “avrdb combined” software is involved.