System, device, method, computer, computer program and computer program product for computer booting devices not coupled to an internal local bus of the computer to be booted. Boot device may be network-attached device directly coupled to computer over network and not through another computer or server process. Method for redirecting booting process to look away from storage devices coupled to internal computer bus, and to look for external devices on network. Method of booting computer with operating system from storage device including executing a boot block loader program in the processor and memory of computer to be booted that before loading an operating system, loads device driver for accessing storage device; loading the operating system from storage device that is not directly coupled to internal local bus of computer using the device driver, to processor accessible memory; and booting computer from loaded operating system. Computer program and computer program product.