I am trying to get Apache2/PHP/MySQL working but on this URL
It mentions going into .etc/passwd and
Find the line pi:x;1000:1000:Raspberry Pi User,,,:home/pi:/bin/bash and add a # sign to the beginning of it. Now save and exit the file."
Which I have done and now i'm stuffed as it doesn't recognise Pi. Or allow e to add Pi as a new user. How can I get around this?