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====== Burning gPXE into Intel EtherExpress cards ======

<referback>This page is part of the [[:romburning|ROM-burning]] tutorial.</referback>

Intel provides a utility called IBAUtil which allows you to update the expansion ROM images on many Intel NICs.

===== Renaming the ROM image =====

Intel's IBAUtil ROM-burning tool requires filenames with a //.iba// extension rather than a //.rom// extension.  Give your gPXE ROM image a name suitable for IBAUtil:

    cp bin/8086107c.rom bin/8086107c.iba

where //bin/8086107c.rom// is the gPXE ROM image that you have just built.

===== Preparing the tools =====

Download and save the two files:

  * A FreeDOS boot disk, [[http://rom.etherboot.org/boot/dosboot.img|dosboot.img]]
  * Intel's IBAUtil ROM-burning tool, available as part of   [[http://downloadmirror.intel.com/8242/eng/PROBOOT.exe|PROBOOT.exe]]

Copy your gPXE ROM image to the FreeDOS boot disk:

    mcopy -i dosboot.img bin/8086107c.iba ::

where //bin/8086107c.iba// is the renamed gPXE ROM image as created earlier.

Run //PROBOOT.exe//.  This is a Windows application; if you don't have a Windows installation available then you should be able to extract the files embedded in it using [[http://p7zip.sourceforge.net/|p7zip]] or [[http://www.cabextract.org.uk/|cabextract]].  //PROBOOT.exe// will extract several files to the directory //C:\Intel13.3//; the only file that you need is //C:\Intel13.3\IBAUtil.exe//.

**NOTE:** Be sure to get the latest version of PROBOOT.exe. Tested with version 14.3, but older versions are unable to burn images > 64kB 
in a correct way. Symptoms: 2nd prompt freezes system, no gPXE boot device in bios, but 1st prompt (ctrl+B) works and also autoboot within 1st prompt.

Copy //IBAUtil.exe// to the FreeDOS boot disk:

    mcopy -i dosboot.img /path/to/IBAUtil.exe ::

where ///path/to/IBAUtil.exe// is the path to your extracted copy of //IBAUtil.exe//.

===== Creating the boot disk =====

Transfer the boot disk image to a floppy disk:

    dd if=dosboot.img of=/dev/fd0

If you do not have a floppy disk available, you can create a bootable CD-ROM using

    mkisofs -b dosboot.img -o dosboot.iso dosboot.img

and then burn the ISO image //dosboot.iso// to a recordable CD-ROM.

===== Burning the gPXE ROM =====

Boot from the floppy disk (or CD-ROM).  At the DOS //A:\>// prompt, type

    ibautil -restore -all

You should see something like

    A:\>ibautil -restore -all
    Intel(R) Boot Agent Utility
    IBAUtil version 4.03.05.06
    Copyright (C) 2002-2007 Intel Corporation
    
    Restoring image on NIC 1 from file 8086107C.IBA..done
    
    NIC Network Address Series  WOL Boot ROM Type      Version
    === =============== ======= === ================== =======
     1  001B210A7760    Gigabit YES PXE/RPL            98.113.250

Reboot the machine and enter the BIOS setup.  You should see gPXE show up as an option in your BIOS's boot selection menu.

Congratulations on successfully burning gPXE into your network card!

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