[gPXE] PATCH: Allow "dhcp" command to iterate over multiple interfaces like autoboot()

[Stefan Hajnoczi]

On Sat, Jul 24, 2010 at 7:21 PM, Lars Kellogg-Stedman <lars at oddbit.com> wrote:
>> Can you explain why -c is necessary to stay compatible with the
>> current command?  The current command takes one argument and fails if
>> the interface doesn't exist.
>
> I wanted to preserve the "fail on unknown interface" semantics, even
> with multiple interfaces on the command line.  I'm not sure in
> retrospect if this matters or not.  It seemed worthwhile to have to
> have both behaviors (because maybe the unknown interface is due to a
> spelling error and it *should* fail?).  I'm not wedded to this option,
> and if you think that removing it simplifies things I'm all for it.

Thanks for explaining.  I think having both behaviors is useful.

If a gPXE script is used on a range of different machines it could be
handy to skip unknown interfaces.

On the other hand, it can make sense to error for the reason you mentioned.

Stefan