Add PXE support

[cilki]

In order to enable PXE booting, the user would need to also add the goldboot registry's IP to their DHCP server.

When enabled, the registry will:

• Start a TFTP listener on 69/UDP
• Send a specialized goldboot linux image wrapped in an EFI binary
  • According to the requestor's MAC address, the goldboot linux image automatically pulls the appropriate public image and applies it

[berlin4apk]

+1

Looking forward to it.

You might get some value from referencing digitalrebar's provision tool, which can act as a PXE boot server among other things.

[cilki]

Thanks for the suggestion; I'll try it out and see what other features are relevant. I love when open source is better than its proprietary counterparts!