heterogeneous pxe cluster using dnsmasq&friends

[feynman]

I have been trying to switch from dhcp + tftp-hpa to dnsmasq because I was under the impression that the configuration was more consolidated (less files to keep track of.)

This is becoming unexpectedly frustrating as I cannot even get my server to dish out an address to a client!

I was going to work my way up to the configuration I wanted by tweaking settings one at a time, but seeing as I cannot even get a dhcp server working, I am just going to describe my final goal and hope someone can help me set it up.

I would like to give my server/router/head node/master an address of:
192.168.1.1
I would like to map lists of mac addresses (are those case sensitive?) to lists of subnets like this:

i686 adresses ==> the i686 net
{
mac1,
mac2,
mac3
}

mad64 adresses ==> the amd64 net
{
mac4,
mac5,
mac6
}

Each subnet gets its own kernel and nfs root file system. The usual pxelinux.0 and pxelinux.cfg stuff is in a directory called /node and each architecture's root file system is in a directory in /node (e.g. /node/i686, /node/amd64, etc.)

eth0 is for the cluster (I will get an ethernet switch as soon as I get one node working using this method), eth1 is for my internet access on the head node.

That should take care of everything needed to set up the network. I will probably have to ask more questions on configuring the filesystems, but I want to get the pxe booting/networking stuff figured out first.

Thanks