Easy Slow Cooker Pulled Pork

2 Yellow Onions Chopped
4 Medium Garlic Cloves, Minced
1 Tablespoon Packed Brown Sugar
1 Tablespoon Chili Powder
1 Tablespoon Salt
1/2 Teaspoon Cumin
1/4 Teaspoon Cinnamon
4-5 lb. Pork Roast
2 Cups Barbecue Sauce

Place all ingredients into a slow cooker.  Cook on low 8-10 hours or 6-8 on high.  Serve on Rolls with Coleslaw.