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====== Burning gPXE into Broadcom BCM57xx based cards cards ======

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

Various manufacturers supply their own flash utilites, unfortuantly these do not appear to work correctly with etherboot, and due to this, we require the Broadcom "diagnostic" utility set.

===== Obtaining the ROM image =====

In order to build the rom for my HP card the PCI id had to be added to src/drivers/net/tg3.c

    PCI_ROM(0x0e11, 0x00ca, "tg3-hp",       "tg3 HP"),

The above was added to tg3.c and the rom made with the following command

    make bin/tg3-hp.rom

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

Now that we have the image, I would suggest copying this to media that will be accessable from FreeDOS (such as a FAT formated USB Drive)

Once we have the rom saved else where we need to obtain the Broadcom Diagnostic utility
  * FreeDOS with BRCM570x diagnostitcs utility, [[http://www.broadcom.com/support/ethernet_nic/driver-sla.php?driver=570x-diag]]

Burn this image to CD using your favourite CD burning method  

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

Boot from the CD selecting option 1.

At the next prompt choose the "Install to HD using FD setup" option, please note this won't actually install to your HDD without more confirmation

At the next screen, choose your language, and then select "Run FreeDOS from CD ROM (return to command prompt)"

You should now have an X:\ prompt

From here change your current working directory to X:\B57UDIAG\

From here you will want to execute the following command
    B67UDIAG.exe -ver

You should see something like

    X:\B57UDIAG\>b57diag.exe -ver
    ****************
    Copyright notice
    ***************
    C	Brd:Rv	Bus		PCI	Spd	Base	Irq		EEP		MAC				Fmw			Configuration
    ----------------------------------------------------------------------------------------------
    0	5703:B0	05:04:0	32	33	FC50	11		128K	012345567810	5703-v.235	WMp,auto
    
This shows the list of broadcom cards in the machine. We in this case have only the one card.
We want to check the current payload in the card, so we need to run the following    


    X:\B57UDIAG\>b57diag.exe -c 0 -dir
    ****************
    Copyright notice
    ***************
    C	Brd:Rv	Bus		PCI	Spd	Base	Irq		EEP		MAC				Fmw			Configuration
    ----------------------------------------------------------------------------------------------
    0	5703:B0	05:04:0	32	33	FC50	11		128K	012345567810	5703-v.235	WMp,auto
    
    0	5703:B0	05:04:0	32	33	FC50	11		128K	012345567810	5703-v.235	WMp,auto
    Entry	Type		SRAM Addr	EEP Offset		Length		Execute		Version
    		Bootcode	08003000	00000200		00001860	CPUE(2)		5703-v2.35
    0		PXE			00010000	00001A60		0000EA04	no			v73.67.80
    
This lists the current NRAM filesystem on the card. Please note the PXE rom on this card is already a gPXE rom, however the same process holds true for replacing the rom
Trace: • todo • e1000 • fedora11bko • journal • config
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