1. A system for loading images, comprising: a read-only memory (ROM) for storing the images; an initialization module for initializing a running environment of the system, and for starting up a procedure for automatically loading any of the images; an image-searching module for searching the images in the ROM; an image-validating module for validating images that are found by the image-searching module; and an image-loading module for loading valid images to a memory of a network device.