Rub salt then liquid smoke over meat.

Place roast in a slow cooker.

Cover, and cook on low for 8-10 hours.

Remove meat from slow cooker, and shred.

Heat 1 tablespoon of oil in a large skillet on medium high heat.

Add pork and sauté for 2 minutes while stirring.

Add cabbage to pork and continue to cook until cabbage is tender, about 3 minutes. Remove pan from heat.

To assemble the sandwiches, slice rolls in half, spread a bit of teriyaki sauce on the bread, top bottom bread with pulled pork, and garnish with a slice of pineapple and top bun.

Serve sandwiches immediately.

Pork can be made up to 2 days in advance or frozen for up to 2 months.