ORBIT-USER: Where's the WiFi device on sb2?

[Einar Vollset]

Umm... good point. However, if I boot normal Linux box, I can add  
bits to /etc/modules to have them loaded on boot - is this
also true when I imageNodes ? Actually, thinking about it for half a  
second - imageNodes only writes the image doesn't it? When
are the machines actually booted (by a nodehandler script?), and do  
they then follow the normal boot sequence? How do I
boot an imaged node without using nodehandler?

Oh, and assuming /etc/modules work as normal - will nodehandler still  
unload the driver if I do any of the node.net.w0 bla bla
stuff in my script?


On Jul 25, 2006, at 5:40 PM, Pandurang Kamat wrote:

> ummm.. image is just what's on the disk and driver is loaded  
> unloaded from memory.
>
> You probably already knew this but typed your question faster than  
> the speed of thought :-)
> And the faq is back (thanks for pointing out), an accidental  
> deletion of '}}}' had messed up the wiki rendering.
>
> -Pandurang
>
> Einar Vollset wrote:
>> Ah. Magic.. :-) Thanks!
>> Out of interest, if I load the driver like this and then save the  
>> image, will the driver be there when
>> I re-image the nodes? If so, and I then ran an experiment, would  
>> the nodehandler (rudely IMHO)
>> unload it again?
>> Cheers,
>> Einar
>> On Jul 25, 2006, at 5:15 PM, Sachin Ganu wrote:
>>> Einar,
>>>
>>> You will need to load the driver using "modprobe ath_pci" prior to
>>> bringing the interface ath0 up. The nodehandler does this
>>> automatically. Also, at the end of the experiment, the nodehandler
>>> unloads the driver.
>>>
>>> At the end of your slot, I will try to test "nodehandler -t -k " and
>>> see if I can recreate the problem.
>>>
>>> On 7/25/06, Einar Vollset <einar at cs.cornell.edu> wrote:
>>>>
>>>>
>>>>
>>>> Hi,
>>>>
>>>> I've been trying to wrestle nodehandler to run my code and was  
>>>> making
>>>> progress when I noticed that
>>>> my experiments were a little too successful; my code was picking  
>>>> the
>>>> 1Gbps wired network device
>>>> instead of the wireless one :-)
>>>>
>>>> However, I appear unable to actually locate the device interface  
>>>> for
>>>> the wireless card; I simply run
>>>> `nodehandler -t -k` - which should create me a device ath0, but  
>>>> when
>>>> I ssh into the node after the
>>>> simulation I only see the two wired interfaces:
>>>>
>>>> node1-1:~# iwconfig
>>>> eth0      no wireless extensions.
>>>>
>>>> eth1      no wireless extensions.
>>>>
>>>> lo        no wireless extensions.
>>>>
>>>> It also doesn't like my suggestion to manually ifconfig the ath0  
>>>> device:
>>>>
>>>> node1-1:~# ifconfig ath0 up
>>>> ath0: ERROR while getting interface flags: No such device
>>>> node1-1:~#
>>>>
>>>>
>>>> Any thoughts?
>>>>
>>>> Cheers,
>>>>
>>>> Einar
>>>>