Module tricks

[Karl Larsen]

Timothy Murphy wrote:
> aKarl Larsen wrote:
>  
>   
>>     It has been awhile since I cared what the kernel has in it. But as I
>> thought "lsmod" will list everything in the kernel and it still does. I
>> did a lsmod and found the modules for WiFi were not in the kernel. The
>> kernel I am using on the laptop is supposed to have all the WiFi modules.
>>     
>
> lsmod lists the modules that are loaded.
> In the case of distribution kernels
> this is a tiny proportion of the modules in (or with) the kernel.
>
>   
>>     So I did a modprobe ipw2100 and it seemed to work. I looked with
>> lsmod and sure enough the it and ieee81102 was also in the kernel. It
>> didn't start WiFi working yet. I looked at /var/log/messages and it
>> showed both modules loading properly but for some reason NetworkManager
>> was not interested in finding WiFi. I need to do something else.
>>     
>
> This is a minority opinion,
> but I am not a great fan of NM (NetworkManager).
>   
    I am becoming less of a NM fan. I had it running on this computer 
and from /var/log/messages I learned it turned off eth0. What I saw was 
the Internet stopped working :-(
> If WiFi is working then NM isn't really necessary;
> and if it is not working then NM just adds another layer of confusion
> to an already confused situation.
>
>   
    It is sure not a clear system. And I will try doing this without NM.
> Personally, I would stop NM, look at the entries
> in /etc/sysconfig/network-scripts/ifcfg-*
> and make sure they are reasonable,
> and then say "service network restart".
>
>   
I will try that. The kernel 3232 has a lot of different modules and I 
expect I need to find the right one for my WiFi hardware.


>>     Be aware that if you modprobe a module into the kernel it goes away
>> with a reboot.
>>     
>
> You can probably make an entry in modprobe.conf to make sure it is loaded.
>
>   
    Maybe after I figure out which module works.

Karl