I have a Macbook Pro Early 2011 with dual drives via an Optibay. I am running Lion OS off my SSD which is currently in the main drive bay and the original 500GB HDD is in the Optibay drive. I am interested in dual booting by putting Ubuntu on the HDD in the Optibay slot. Is this possible through simply installing Linux on the HDD and choosing that drive when booting my system or do I need to use boot camp somehow to accomplish this?