On Monday 16 Dec 2013 15:56:35 Rick "Zero_Chaos" Farina wrote:
> On 12/16/2013 10:43 AM, Florian HEGRON wrote:
> >> My problem :
> >> Recently, I decided to install Gentoo on an old acer laptop.
> >> And as everydays, when I try to install my wifi device on a Gnu/linux
> >> distro, I have a problem.
> >> The wireless card is Intel Pro 2200BG.
> >> 
> >> 
> >> I tried to follow the simple wiki page
> >> 
> >> : https://wiki.gentoo.org/wiki/Wifi
> >> 
> >> It appears easy because my card is in the list.
> >> I config my kernel as indicated. I tried too to active the support of
> >> all proposed wifi device.
> >> I rebooted on the new compiled kernel.
> >> I emerge sys-firmware/iwl2000-ucode without problem.
> >> After a reboot, I tried to use ifconfig -a but I only see my lo,
> >> enp6s8 (ethernet), and sit0 (ipv6 I think).
> >> I tried to unmerge sys-firmware/iwl2000-ucode and emerge
> >> sys-kernel/linux-firmware but nothing more.
> >> 
> >> Hi,
> >> 
> >> did you try:  # rfkill list ?  ===> no ²
> > 
> > What is the goal of this command ?
> > In which package it is because I haven't this.
> > 
> > If I have a result with this command, what do I have to do ?
> > 
> > I will try to try today.
> > 
> > Thank you.
> 
> I would suggest "modprobe ipw2200" then "dmesg | grep ipw2200" and see
> what is going on.  might not see your hardware at all, might have a
> firmware issue, might be broken.  dmesg will show more.
> 
> if you need help please reboot, modprobe ipw2200, and then provide
> "dmesg" output to the list.
> 
> -Zero

Only to add that getting WiFi to work is not too complicated, but you will 
need to follow some basic steps to get it going:

1. Check that the wireless card's driver is installed in the kernel.  You can 
install this as a module if you do not use wireless all the time, otherwise 
build it in the kernel.  If it is installed as a module, then modprobe it and 
check in dmesg to see that it is loaded.

2. Check that the relevant firmware is also installed and loaded.

3. Check that the card is switched on on the laptop (there may be some button 
to switch on the hardware).  The rfkill package can be used to check this:

$ eix -l rfkill
[I] net-wireless/rfkill
     Available versions:  
            0.4
            0.5
     Installed versions:  0.5(14:34:30 06/29/13)
     Homepage:            
http://wireless.kernel.org/en/users/Documentation/rfkill
     Description:  Tool to read and control rfkill status through /dev/rfkill


Now the card should be listed in ifconfig.  Set up your network management 
solution to configure your desired wireless access point and encryption:

  https://wiki.gentoo.org/wiki/Network_management

Hope this helps.
-- 
Regards,
Mick