The configurations are stored in a vendor subdirectory. Typing an initial make menuconfig will prompt selection of a vendor and a specified target. Having a directory entry under the vendor's subdirectory will generate a new vendor and target. Having done make menuconfig and selecting a vendor and target, the make process will automatically add additional menu make selections. It uses the Linux menu configuration scheme, and automatically drops down into further menu selections to finalize a configuration. The Makefile in its vendor's target directory controls the final image build and production including the ROM file system and any other images required. A typical build sequence begins by specifying make menuconfigs, and then then typing "make" once the configuration selections are made. The kernel, libraries, and user applications will be compiled. The ROM file system will be created and updated. A ready-to-load elf file is generated. In this case, it's named Linux.dxe.