A unified scribed image for installing software on different storage system platforms and configurations is described. The scribed image is produced by installing on a reference storage system reference system software including reference system core components usable by all storage systems, and reference system unique components used only by the reference storage system. Reference system software representing shared components used by pairs of storage systems is added. The reference system software related to the reference system unique components is then removed. The remaining core components and shared components to are scribed to media to produce the unified scribed image. Methods of using the unified scribed image to install storage system software in various storage systems are also described.