Bug#592446: don't make wlan the default if iwl wifi firmware was not found

[Petter Reinholdtsen <pere@hungry.com>]

[Harald Dunkel]
> The iwl wifi firmware was not found on the netinst CD, so I
> continued without firmware. In the next step the iwl wlan
> was set as the default network interface to configure.
> Thats not reasonable.
>
> The ethernet NIC could be configured as expected.

I agree, and there is code in d-i to make the interface with link
detected the default.  Apparently it failed for your combination of
network interfaces. :/

Can you provide the output from "/usr/share/bug/discover-data 3>&1"
run as root on the machine to give info on the hardware and drivers
involved.

Happy hacking,
-- 
Petter Reinholdtsen