That's correct. The Buddha taught only one path - the noble eightfold path. I interpret the meaning of "an unawakened bodhisatta" as "an as yet unawakened being headed for self-awakening". I also understand that Gotama, the as yet unawakened being headed for self-awakening, was already a sotapanna. If you read the Pali suttas, a sotapanna is often described as "a stream-winner headed for self-awakening".