Default Interface Bringup

[Manik Taneja]

> On Dec 29, 2015, at 3:25 AM, Alexander Sack <asac at canonical.com> wrote:
> 
> Hi,
> 
> not sure if you are on 15.04, but if you are, run snappy config
> ubuntu-core and you will get a yaml that has a network/interfaces
> section, like:
Yes, I am 15.04. I was able to setup wifi using wpa_supplicant. Thanks for this suggestion. But the point was that as Snappy boots up and discovers devices why does it not enable the wifi by default? There's no lspci in snappy and I am not sure if I remember seeing lsusb. In the absence of these tools an end user starting with snappy does not get any indication as to what's going on with the wifi. This needs to be enabled by default just like eth0!
> 
> config:
>  ubuntu-core:
>    [...]
>    network:
>      interfaces:
>      - name: eth0
>        content: |
>          allow-hotplug eth0
>          iface eth0 inet dhcp
>      ppp: []
> [...]...
> 
> 
> 
> Try to change that so it matches what you need to bringup your wifi,
> e.g. a WPA iface config would look like:
> 
> allow-hotplug wlan0
> iface wlan0 inet dhcp
>   wpa-ssid YOURSSID
>   wpa-psk YOURPSKKEY
> 
> Hope that works!
> 
> - Alexander
> 
>> On Tue, Dec 29, 2015 at 1:33 AM, Manik Taneja <manik at canonical.com> wrote:
>> Guys,
>> 
>> I was working on the Thin Canyon NUC and noticed that by default we don't
>> bring up wlan0 interface. Instead, the only interface brought up is eth0. I
>> checked this behavior on the Dragonboard 410c and noticed that we don't
>> bring up the wlan0 interface as well. Is this behavior by design? On both
>> the boards, I was able to bring up the interfaces by using-
>> 
>> sudo ifconfig wlan0 up
>> 
>> however, the command-
>> 
>> sudo ifup wlan0 fails with ifup: Ignoring unkown interface: wlan0=wlan0
>> 
>> Can someone please help me understand what's the reason for this? Also, If
>> we have the kernel module for wifi available than why don't we enable the
>> wlan0 interface by default? I think that's a much cleaner interface for
>> someone starting with Snappy.
>> 
>> /Manik
>> 
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