RedBoot (also called Red Hat's Embedded Debug and Bootstrap Program), is a standalone, open source bootstrap/loader designed for use in embedded systems.
RedBoot provides a simple command line interface (CLI). The CLI allows the download and execution of embedded applications via the asynchronous port (using XMODEM or YMODEM) or via ethernet (using TFTP), management of Flash images and the setting of system configuration parameters. For a complete list of RedBoot commands, see the RedBoot Command Summary.