"Normal" depends on the kid. My daughter wasn't interested in eating food at 6 months, either. I decided not to force the issue and waited, periodically giving her tastes of things to try to get her interested. At 8 months, she decided that food was good stuff, but she never did like commercially produced baby food. (she could spit it an awfully long way, though!)
I think she found the texture too smooth - she still doesn't like smooth food, and she's 11 now. Besides, have you tasted baby food? It's nasty. Perhaps you should try modifying "real food" and see how it goes. When my daughter did start eating, I fed her small amounts of the same food the rest of the table was getting, mashed up or ground up. She liked it, and has grown into an adventurous, healthy eater with a remarkably sophisticated palate for a tween.
Both of my kids' favorite first foods were rice, mashed up fruit, and yogurt.
In the meantime, your daughter will be fine subsisting on breast milk. Better than fine - it is the perfect food for little ones.