what is the command you need to use to update bios of a server from a uefi shell
Unified Extensible Firmware Interface The Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (BIOS) firmware interface originally present in all IBM PC-compatible personal computers,[1][2] with most UEFI firmware implementations providing legacy support for BIOS services. UEFI can support remote diagnostics and repair of computers, even with no operating system installed.[3] The user can enter a setup utility by quickly pressing the manufacturer's specific setup key at an early moment when the computer starts up. The most common such keys are Delete, F2, F12, and Esc.