6 months and would rather eat a bottle

La
My son just turned 6 months and he has hardly any interest in eating cereal. We tried starting him on food at 4 months because he was drinking a 5 oz bottle every 2 hours but when we tried giving him cereal he didn't have the tongue thing down to swallow it. So I decided to wait on the trying food. So now he is 6 months and I am trying to feed him food again. I am able to get about 5 bites into him and then he just starts crying and gets frustrated with eating and I have to give him a bottle to get him to stop crying. My first son was never like this so I have no ideas. Any one else have any ideas to get him to eat food instead of wanting a bottle?