Preheat the oven to 325 degrees . In a large Dutch oven, heat 4 tbsp. EVOO, 4 turns of the pan, over medium-high heat. Add the pancetta and render out the fat until crisp. Remove the pancetta with a slotted spoon and drain on paper towels.
Season the short ribs generously with salt and pepper. Add to the pan and brown on all sides--you may need to do this in batches. Set aside. Stir in the carrots, celery, onions, garlic, rosemary, thyme, sage, oregano and cloves. Partially cover the vegetables and cook to soften a bit, 5 to 8 minutes. Once softened, add the tomato paste and stir for a minute or two to incorporate, then add the wine, consomme and tomatoes. Return the short ribs and pancetta to the pot, stir everything together, bring up to a simmer, cover and bake until the meat is tender to the touch or falls apart easily, 2 to 2 1/2 hours. Cool and refrigerate overnight if making ahead.
Remove the excess fat that has floated to the top and solidified. Take the meat off the bones and shred with two forks or with your fingers. Add the meat back into the sauce. Place the pot over medium heat to bring up to temperature.
Meanwhile, in a large skillet, heat the remaining 2 tbsp. EVOO, 2 turns of the pan, over medium- high heat. Add the sausages to the pan and cook, breaking up with the back of a wooden spoon, until browned, crisp and crumbly, 8 to 10 minutes. Drain the sausage and then add it to the meat sauce. Stir together to combine.
While the meat sauce is coming together, bring a large pot of water to a boil for the rigatoni. Salt the boiling water and cook the rigatoni to al dente.
Toss the pasta with the meat sauce. Place the pasta in bowls and top with the pecorino cheese.