am 3dba40da: (-s ours) am d4208f9f: remove the notion of "root path"; support mixed flash types (do not merge)

Merge commit '3dba40da1e533c6f419857e4274d9d9dd55868b6'

* commit '3dba40da1e533c6f419857e4274d9d9dd55868b6':
  remove the notion of "root path"; support mixed flash types (do not merge)