✎ dnsmasq - Etherboot/gPXE Wiki

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====== How to configure dnsmasq for gPXE ======

{{ nic.jpeg?237×222|A network card}}

===== Why DNSMasq =====

  * It is small and lightweight
  * Easy to setup (includes its own tftp server)
  * It may already be running on your linux-based router :-)

===== Defining the gPXE-specific options =====

Add the following settings to your ///etc/dnsmasq.conf// file:

    dhcp-boot=pxelinux.0
    enable-tftp
    tftp-root=/var/lib/tftpboot

for pxe chaining use this:

    dhcp-match=gpxe,175
    dhcp-boot=net:#gpxe,gpxe.pxe
    dhcp-boot=pxelinux.0
    
the '#' above is a 'not', not a comment

See: http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq.conf.example
for more information

===== A potential problem and a fix =====

According to this page: http://blog.nella.org/?p=335

<html><blockquote>
gPXE wants to find the boot filename in the dedicated slot in the reply packet. dnsmasq does something clever/stupid (I’m not sure which) and puts it someplace else. You have to use the –dhcp-no-override option to dnsmasq to make gPXE see the filename.
</blockquote></html>

Trace: • pxeknifeoverhttp • copyright • vmwarebios • debian_aoe_migrate • packages • qemupxeknife • wirelessboot

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