Re: [gPXE] Near last step of flashing e1000 ROM with Wifi gPXE the USB stick won't boot

[Shao Miller]

On 8/3/2011 12:14, J C wrote:
I tried creating a ROM to flash my Intel PRO/1000 MT NIC with gPXE a 
wireless boot but I get stuck at creating a Boot Disk. I configured it 
on Ubuntu 11. Below are the steps I use/d:

    lspci
    02:06.0 Ethernet controller: Intel Corporation 82540EM Gigabit 
Ethernet Controller (rev 02)
    lspci -n -s 02:06.0
    02:06.0 0200: 8086:100e (rev 02)
    #etherboot :http://etherboot.org/
<gpxe1user> gpxebot: lspci 8086:100e
<gpxebot> e1000_82540

I downloaded the gpxe src and compiled it. I can create working ISO's 
with it and can boot wirelessly with an embedded script. I used a CD. 
Now I want to flash the ROM on my NIC with this script.

cd Downloads/gpxe/src
make bin/8086100e.rom EMBEDDED_IMAGE=wireless.gpxe

    wireless.gpxe file contents:
    #!gpxe
    set net0/ssid MYWIFIAP
    set net0/key MYWIFIKEY
    autoboot

cp bin/8086100e.rom bin/8086100e.iba
# This is done to refresh with a clean "dosboot.img"
cp /home/myfolder/Downloads/dosboot.img .
mcopy -i dosboot.img bin/8086100e.iba ::
# IBAUtil.exe was automatically extracted when I downloaded PROBOOT.exe
mcopy -i dosboot.img /home/myfolder/Downloads/APPS_intel/IBAUtil.exe ::

For USB stick, do this:
    sudo dd if=dosboot.img of=/dev/sdc1

    USB stick contents:

    8086100e.iba
    AUTOEXEC.BAT (0 bytes)
    COMMAND.COM
    CONFIG.SYS (0 bytes)
    IBAUtil.exe
    KERNEL.SYS

For CD, do this, then burn ISO:
    mkisofs -b dosboot.img -o dosboot.iso dosboot.img

    CD contents after burning the ISO:

    boot.cat
    dosboot.img

Neither USB stick nor CD work when booting. The screen is just black 
with a blinking underscore. I've tried them both on several machines. 
What can I do to get around this?

Everything looks good except...  What is 'dosboot.img'?  Where does it 
come from?  Does its vendor suggest that it can be DDd to any USB stick 
and that it should be expected to work with any BIOS?

- Shao Miller
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