Intel® Ethernet Adapters and Devices User Guide

ID Date Version Classification
705831 11/28/2024 Public

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Document Table of Contents

Intel® Boot Agent

The Intel® Boot Agent is a software product that allows your networked client computer to boot using a program code image supplied by a remote server.

Intel Boot Agent complies with the Pre-boot eXecution Environment (PXE) Version 2.1 Specification. It is compatible with legacy boot agent environments that use the BOOTP protocol.

Configuring the Intel Boot Agent Client

The Intel Boot Agent software provides configuration options that allow you to customize the behavior of the Intel Boot Agent software. You can configure the Intel Boot Agent in any of the following environments:

  • A Microsoft Windows* environment

  • A preboot environment (before operating system is loaded)

The Intel Boot Agent supports PXE in preboot and Microsoft Windows environments. In each of these environments, a single user interface allows you to configure PXE protocols on Intel® Ethernet adapters.

Important:

If spanning tree protocol is enabled on a switch port through which a port is trying to use PXE, the delay before the port starts forwarding can cause a DHCP timeout. Either disable spanning tree or turn on the feature that allows the port to begin forwarding of packets immediately (“port fast learning” for Cisco switches), rather than wait until the spanning tree discovery is complete.

Configuring the Intel Boot Agent in a Microsoft Windows Environment

If you use the Windows operating system on your client computer, you can use Intel® PROSet for Windows* Device Manager to configure and update the Intel Boot Agent software. Intel PROSet is available through the device manager. Intel PROSet provides a special tab, called the Boot Options tab, used for configuring and updating the Intel Boot Agent software.

To access the Boot Options tab:

  1. Open Intel PROSet for Windows Device Manager by opening the System Control Panel. On the Hardware tab, click Device Manager.

  2. Select the appropriate adapter and click the Boot Options tab. If the tab does not appear, update your network driver.

  3. The Boot Options tab shows a list of current configuration parameters and their corresponding values. Corresponding configuration values appear for the selected setting in a drop-down box.

  4. Select a setting you want to change from the Settings selection box.

  5. Select a value for that setting from the Value drop-down list.

  6. Repeat the preceding two steps to change any additional settings.

  7. Once you have completed your changes, click Apply Changes to update the adapter with the new values.

Configuring the Intel Boot Agent in a Preboot PXE Environment

Note:

Intel Boot Agent may be disabled in the BIOS.

You can customize the behavior of the Intel Boot Agent software through a preboot (operating system independent) configuration setup program contained within the adapter’s flash ROM. You can access this preboot configuration setup program each time the client computer cycles through the boot process.

When the boot process begins, the screen clears and the computer begins its Power On Self Test (POST) sequence. Shortly after completion of the POST, the Intel Boot Agent software stored in flash ROM executes. The Intel Boot Agent then displays an initialization message, similar to the one below, indicating that it is active:

Initializing Intel(R) Boot Agent Version X.X.XX
PXE 2.0 Build 083
Note:

This display may be hidden by the manufacturer’s splash screen. Consult your manufacturer’s documentation for details.

The configuration setup menu shows a list of configuration settings on the left and their corresponding values on the right. Key descriptions near the bottom of the menu indicate how to change values for the configuration settings. For each selected setting, a brief “mini-Help” description of its function appears just above the key descriptions.

  1. Highlight the setting you need to change by using the arrow keys.

  2. Once you have accessed the setting you want to change, press the space bar until the desired value appears.

  3. Once you have completed your changes, press F4 to update the adapter with the new values. Any changed configuration values are applied as the boot process resumes.

The following describes the available configuration settings and their possible values.

Network Boot Protocol:

Select PXE for use with Network management programs, such as LANDesk* Management Suite. Depending on the configuration of the Intel Boot Agent, this parameter may not be changeable.

Possible values include:

  • PXE (Preboot eXecution Environment)

Boot Order:

Sets the boot order in which devices are selected during boot up if the computer does not have its own control method.

If your client computer’s BIOS supports the BIOS Boot Specification (BBS), or allows PnP-compliant selection of the boot order in the BIOS setup program, then this setting will always be Use BIOS Setup Boot Order and cannot be changed. In this case, refer to the BIOS setup manual specific to your client computer to set up boot options.

If your client computer does not have a BBS- or PnP-compliant BIOS, you can select any one of the other possible values listed for this setting except for Use BIOS Setup Boot Order.

Possible values include:

  • Use BIOS Setup Boot Order

  • Try network first, then local drives

  • Try local drives first, then network

  • Try network only

  • Try local drives only

Legacy OS Wakeup Support:

(For 82559-based adapters only)

If set to 1, the Intel Boot Agent will enable PME in the adapter’s PCI configuration space during initialization. This allows remote wakeup under legacy operating systems that don’t normally support it. Note that enabling this makes the adapter technically non-compliant with the ACPI specification, which is why the default is disabled.

Possible values include:

  • 0 = Disabled (Default Value)

  • 1 = Enabled

Note:

If, during PXE boot, more than one adapter is installed in a computer and you want to boot from the boot ROM located on a specific adapter, you can do so by moving the adapter to the top of the BIOS Boot Order or by disabling the flash on the other adapters.

While the configuration setup menu is displayed, diagnostics information is also displayed in the lower half of the screen. This information can be helpful during interaction with Intel Customer Support personnel or your IT team members. For more information about how to interpret the information displayed, refer to Diagnostics Information for Preboot PXE Environments below.

Setting Up the Intel Boot Agent Target/Server

For the Intel Boot Agent software to perform its intended job, a server must be set up on the same network as the client computer. That server must recognize and respond to the PXE or BOOTP boot protocols that are used by the Intel Boot Agent software.

Note:

When the Intel Boot Agent software is installed as an upgrade for an earlier version boot ROM, the associated server-side software may not be compatible with the updated Intel Boot Agent. Contact your system administrator to determine if any server updates are necessary.

Linux* Server Setup

Consult your Linux vendor for information about setting up the Linux Server.

Windows Deployment Services

Nothing is needed beyond the standard driver files supplied in the software release. Microsoft owns the process and associated instructions for Windows Deployment Services. For more information on Windows Deployment Services perform a search of Microsoft articles at http://technet.microsoft.com/en-us/library/default.aspx.

Intel Boot Agent Troubleshooting

Common Issues

The following list of problems and associated solutions covers a representative set of problems that you might encounter while using the Intel Boot Agent.

After booting, my computer experiences problems

After the Intel Boot Agent product has finished its sole task (remote booting), it no longer has any effect on the client computer operation. Thus, any issues that arise after the boot process is complete are most likely not related to the Intel Boot Agent product.

If you are having problems with the local (client) or network operating system, contact the operating system manufacturer for assistance. If you are having problems with some application program, contact the application manufacturer for assistance. If you are having problems with any of your computer’s hardware or with the BIOS, contact your computer system manufacturer for assistance.

Cannot change boot order

If you are accustomed to redefining your computer’s boot order using the motherboard BIOS setup program, the default settings of the Intel Boot Agent setup program can override that setup. To change the boot sequence, you must first override the Intel Boot Agent setup program defaults. A configuration setup menu appears allowing you to set configuration values for the Intel Boot Agent. To change your computer’s boot order setting, see Configuring the Intel Boot Agent in a Preboot PXE Environment.

My computer does not complete POST

If your computer fails to boot with an adapter installed, but does boot when you remove the adapter, try moving the adapter to another computer and using BootUtil to disable the Flash ROM.

If this does not work, the problem may be occurring before the Intel Boot Agent software even begins operating. In this case, there may be a BIOS problem with your computer. Contact your computer manufacturer’s customer support group for help in correcting your problem.

There are configuration/operation problems with the boot process

If your PXE client receives a DHCP address, but then fails to boot, you know the PXE client is working correctly. Check your network or PXE server configuration to troubleshoot the problem. Contact Customer Support if you need further assistance.

PXE option ROM does not follow the PXE specification with respect to the final “discover” cycle

In order to avoid long wait periods, the option ROM no longer includes the final 32-second discover cycle. (If there was no response in the prior 16-second cycle, it is almost certain that there will be none in the final 32-second cycle.

Diagnostics Information for Preboot PXE Environments

Anytime the configuration setup menu is displayed (see Configuring the Intel Boot Agent in a Preboot PXE Environment above), diagnostics information is also displayed on the lower portion of the screen. The information displayed appears similar to that shown in the lower half of the screen image below. This information can be helpful during interaction with Intel Customer Support personnel or your IT team members.

Note:

Actual diagnostics information may vary, depending upon the adapter(s) installed in your computer.

../../_images/ba_diagnostics.gif

Diagnostics information may include the following items:

  • PWA Number: The Printed Wire Assembly number identifies the adapter’s model and version.

  • MAC Address: The unique Ethernet address assigned to the device.

  • Memory: The memory address assigned by the BIOS for memory-mapped adapter access.

  • I/O: The I/O port address assigned by the BIOS for I/O-mapped adapter access.

  • IRQ: The hardware interrupt assigned by the system BIOS.

  • UNB: The address in upper memory where the Boot Agent is installed by the BIOS.

  • PCI ID: The set of PCI identification values from the adapter in the form:

    VendorID/DeviceID/SubvendorID/SubdeviceID/Revision
    
  • Slot: The PCI bus address (slot number)reported by the BIOS.

    Note:

    The number displayed is the BIOS version of the PCI slot number. Therefore, actual positions of NICs within physical slots may not be displayed as expected. Slots are not always enumerated in an obvious manner, and this will only report what is indicated by the BIOS.

  • Flags: A set of miscellaneous data either read from the adapter EEPROM or calculated by the Boot Agent initialization code. This information varies from one adapter to the next and is only intended for use by Intel customer support.