Rocky yard, can't bring in topsoil
I have a rocky backyard that I need grass in by August. There is nothing there now, just a few weeds starting to pop up. I can't bring in topsoil or anything else that needs to be delivered by truck (and I don't have time to bring it in a wheelbarrowful at a time.) I don't need a perfect lawn, just some green. What will happen if I just rake it, take out what rocks I can (this would leave a lot of rocks), put some seed in, and water? Would fertilizer help?
Thank you for any suggestions.