NVIDIA PreBoot Drivers (FlexBoot & UEFI) User Manual v15.0

Overview

NVIDIA® PreBoot drivers are a multiprotocol remote boot technology that support remote Boot over InfiniBand (BoIB) and over Ethernet.

Using Virtual Protocol Interconnect (VPI) technologies available in NVIDIA® ConnectX® adapters, PreBoot drivers give IT Managers’ the choice to boot from a remote storage target (iSCSI target) or a LAN target (Ethernet Remote Boot Server) using a single ROM image on ConnectX products.

FlexBoot is based on the open source project iPXE available at http://www.ipxe.org.

PreBoot drivers first initialize the adapter device, senses the port protocol – Ethernet or InfiniBand, and brings up the port. Then it connects to a DHCP server to obtain its assigned IP address and network parameters, and also to obtain the source location of the kernel/OS to boot from. The DHCP server instructs the PreBoot drivers to access the kernel/OS through a TFTP server, an iSCSI target, or some other service.

Supported Adapter Devices and Firmware

The following are the supported HCAs and firmware versions:

HCAs

Firmware Version

FlexBoot Version

UEFI Version

NVIDIA BlueField-2

24.35.1012

3.6.804

14.28.15

ConnectX-7

28.35.1012

ConnectX-6 Dx

22.35.1012

ConnectX-6 Lx

26.35.1012

ConnectX-6

20.35.1012

ConnectX-5/ConnectX-5 Ex

16.35.1012

The following are the supported legacy HCAs and firmware versions:

HCAs

Firmware Version

FlexBoot Version

UEFI Version

NVIDIA BlueField

18.33.1048

3.6.502

14.26.17

ConnectX-4 Lx

14.32.1010

14.25.17

ConnectX-4

12.28.2006

3.6.102

14.22.14

ConnectX-3/ConnectX-3 Pro

2.42.5000

3.4.752

N/A

Software Downloads

  • FlexBoot: Please visit FlexBoot page

  • UEFI: Please visit the UEFI webpage.

Document Revision History

A list of the changes made to this document are provided in User Manual Revision History.

© Copyright 2023, NVIDIA. Last updated on Sep 5, 2023.