There are plenty of articles explaining how to install OS X on a separate partition of your Mac’s internal drive and how to install it onto an external drive using a single partition. However, it’s not clear to me whether it’s possible to install OS X onto a separate partition of an external drive. It’s what I’d like to do, is it possible?
For what it’s worth, my external drive currently has a single 500GB partition, is formatted as “Mac OS Extended (Journaled)” and has a GUID Partition Table. That should make it bootable, right?