Place dried porcini mushrooms in medium bowl. Add 2 cups hot water. Let porcini stand until softened, about 30 minutes. Drain porcini; reserve soaking liquid. Coarsely chop porcini. Heat oil in heavy large Dutch oven over medium-high heat. Add duck meat and bones. Saute until golden, about 8 minutes. Drain off all but 1 tablespoon fat. Add onions and pancetta. Saute until golden, about 5 minutes. Add chicken livers and porcini and saute 2 minutes. Add bay leaves, rosemary and cloves; saute 5 minutes. Add wine and simmer until almost all liquid evaporates, stirring often, about 4 minutes. Mix in tomato paste. Add broth and reserved mushroom soaking liquid, leaving any sediment in bowl. Bring to boil. Reduce heat and simmer until meat is tender, about 1 hour. Discard bones, bay leaves, rosemary and cloves from sauce. Skim any fat from surface. Simmer sauce until thickened to sauce consistency, about 10 minutes. Season with salt and pepper. (Can be made 1 day ahead; chill. Bring to simmer before using.) Cook pasta in large pot of boiling salted water until tender but still firm to bite. Drain well. Transfer pasta to large bowl. Spoon half of duck sauce over pasta. Toss pasta briefly to coat. Spoon remaining duck sauce over. Sprinkle with Parmesan cheese and serve. Serves 6. Bon Appetit May 1995 Per serving: 6319 Calories (kcal); 563g Total Fat; (82% calories from fat); 196g Protein; 75g Carbohydrate; 1960mg Cholesterol; 1407mg Sodium Food Exchanges: 0 Grain(Starch); 26 Lean Meat; 12 Vegetable; 0 Fruit; 98 1/2 Fat; 0 Other Carbohydrates Converted by MM_Buster v2.0n.