Re: Boot from one card only

Once started from a ROM, gPXE does not remember where it came from.
It will try to boot from all network interfaces for which you have a
driver built in.

There is high-level support in usr/autoboot.c to prioritize a
particular network interface but the find_boot_netdev function is
currently empty.  I think the way to implement it would be by storing
away the PCI device/function of the network card when the ROM entry
point gets called - the BIOS will pass it in %ax (see BIOS Boot
Specification).

For the time being, you can embed a gPXE script into your ROM that
boots from the particular card.  Documentation to get you started:
http://etherboot.org/wiki/scripting

Stefan

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