Sat Mar 4 08:56:35 EST 2006 rsc
    Now that you don't need ea= anymore, what is wrong
    with the probing code as it is now?  I can imagine
    scenarios where you grab 9pxeload over the network
    but then use a local plan9.ini.  Or where you use a
    local 9load but grab your plan9.ini over the network.
    Why disallow these?