[ipxe-devel] ${net1/mac} is empty

Suresh Nathagoundenpalayam suresh at pc-doctor.com
Tue May 6 15:51:56 UTC 2014

Hi Michael,

I'm new to PXE booting stuff. I ended up here while experimenting with razor-server (https://github.com/puppetlabs/razor-server/wiki/Installation). In the installation instructios for razor-server, I was asked to make the following changes in my dhcp.

 if exists user-class and option user-class = "iPXE" {
    filename "bootstrap.ipxe";
  } else {
    filename "undionly.kpxe";

Does this mean that I'm using undionly.kpxe ? If so, how do I modify it to use ipxe.pxe or ipxe.iso.

The bootstrap.ipxe file contains 


isset ${ip} || goto dhcp_net0
set dhcp_mac ${mac:hexhyp}
goto chain_boot

isset ${net0/mac} && dhcp net0 || goto dhcp_net1
echo net0 has DHCP
set dhcp_mac net0$${net0/mac:hexhyp}

isset ${net1/mac} && dhcp net1 || goto dhcp_net2
echo net1 has DHCP
set dhcp_mac net1$${net1/mac:hexhyp}

isset ${net2/mac} && dhcp net2 || goto dhcp_net3
echo net2 has DHCP
set dhcp_mac net2$${net2/mac:hexhyp}

isset ${net3/mac} && dhcp net3 || goto chain_boot
echo net3 has DHCP
set dhcp_mac net3$${net3/mac:hexhyp}

chain${net0/mac:hexhyp}&net1=${net1/mac:hexhyp}&net2=${net2/mac:hexhyp}&net3=${net3/mac:hexhyp}&dhcp_mac=${dhcp_mac}&serial=${serial}&asset=${asset}&uuid=${uuid} || goto error
echo successfully completed the chain-loaded script; booting locally with 'exit'

echo error handler invoked; waiting one minute and rebooting
sleep 60

Suresh Kumar
Sr. Software Engineer, Team Lead (Analytics/R&D)

PC-Doctor, Inc.
10345 Professional Circle,
Reno, NV – 89521

Phone: 775 336 4047
Fax: 775 336 4099
Email: suresh at pc-doctor.com

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----- Original Message -----
From: "Michael Brown" <mcb30 at ipxe.org>
To: "Suresh Nathagoundenpalayam" <suresh at pc-doctor.com>, ipxe-devel at lists.ipxe.org
Sent: Tuesday, May 6, 2014 7:44:32 AM
Subject: Re: [ipxe-devel] ${net1/mac} is empty

On 06/05/14 02:22, Suresh Nathagoundenpalayam wrote:
> I'm trying to use iPXE with razor-server. I have a machine with two nics. But when I log into the iPXE and look at the config for this machine, I get info for only one of the nics. Is this a usual occurrence ? Is it possible to get the mac addresses for both the nics ie have both net1 and net0 populated ?
> boardmanufacturer: "Supermicro"
> boardproductname: "X10SLE"
> boardserialnumber: "NM13CS013211"
> macaddress1: "00:25:90:e7:74:aa"
> macaddress2: "00:25:90:e7:74:ab"

How are you loading iPXE?

If you are using undionly.kpxe, then that will only ever see the NIC 
from which it was chainloaded.  To get access to any other NICs, you 
will need to use native iPXE drivers (e.g. ipxe.pxe, ipxe.iso, etc) 
rather than the undionly driver.


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