Pxe boot process requirements – HP 441877-00F User Manual
Page 43
Configuration and diagnostics 43
Command Definition
Description
-a, --all
Update all of
firmware
Updates the flash memory using
appropriate romimage file. The tool
determines which rom image file to
use.
-r, --restore
Restore flash
memory
Restores flash memory using backup
romimage. The romimage is
contained in the image file.
--opt-rom-on Enable
expansion
ROM
Enables the adapter's PXE
functionality.
--opt-rom-off Disable
expansion
ROM
Disables the adapter's PXE
functionality.
-h, --help
help
Displays the help menu.
-v, --version
Version
Displays the nxflash utility's version
information
PXE boot process requirements
The PXE boot process has the following requirements.
•
An HP NC51xx network adapter enabled to support PXE boot.
•
A Dynamic Host Configuration Protocol (DHCP) server — Used to assign an IP address to the
network adapter and to specify a boot image to download and load. Typically, a system
administrator configures a DHCP server to provide boot parameters.
•
A Trivial File Transfer Protocol (TFTP) server — Used by the network adapter to download a PXE boot
loader.
•
System BIOS enabled for PCI Expansion ROM scanning of the PCI slot where the network adapter is
installed. PCI Expansion ROM scanning allows the network adapter's PXE driver to be loaded and
executed during system boot time.
Configuring PCI behavior is system BIOS dependent but usually requires accessing the BIOS setup
screen and configuring the PCI advanced or boot properties. Also, the system BIOS must be enabled
to boot from the NC51xx network adapter.
•
Desired boot order selected to insure that the appropriate boot sequence occurs.
When PCI Expansion ROM scanning is enabled and the NC51xx network adapter is installed
correctly, the NC51xx network adapter displays as a boot option in the system BIOS boot order
menu.
PXE functionality in the firmware is disabled by default.
Complete the following steps to enable or disable PXE functionality for Windows.
1.
Execute the following command to enable PXE functionality:
nxflash -i NX_NIC
2.
Execute the following command to disable PXE functionality:
nxflash -i NX_NIC
Complete the following steps to enable or disable PXE functionality for Linux.