unchiujar

I am running Fedora 6 and the kernel source is installed.
I installed the rpms needed for the wireless from freshrpms.
When I boot the computer i get the message:

ipw3945 (1.2.0-1): Installing module
Kernel source for kernel [...] not found. Cannot install module.

unchiujar

I found the solution so I'm posting it for the benefit of future generations. I'm not sure but it seems that yum installed i586 kernel binary and i686 sources (or the other way around).
Steps:

1. Install other kernel (I used the xen version of the kernel)
2. Remove all other kernel and kernel sources
3. Install the kernel and the kernel source. They must be both i586 or i686.
4. Install dkms-ipw3945 from freshrpms (it should also add the needed dependencies). This also can be done before step 1.
5. Reboot
6. After the startup process, if you press CTRL+F8, you should see a message that says the kernel module has been installed.
7. Start ipw3459 demon: as root 8. Insert the module 9. Add a new wireless device (mine is eth1)
10. Use wifi-radar (or some other program) to find wireless networks
11. Connect

Steps 7,8 should be added to some initialization script so the wireless connection is available after reboot.

How to add ipw3945d as a service:

For the following steps you need root access to the machine. These are to be done after you checked that the wireless works.
1. Save the following code in /etc/init.d/ as intel_wireless or some other name of your choosing. Be careful not to overwrite other scripts in that directory because they are used to start services on boot.

2. Make it executable (it's a script that gets run at startup)
3. Add the service with chkconfig. The line
# chkconfig: 345 09 09 09
in the file establishes the runlevels for the service and when it starts. This one starts in runlevels 3,4, and 5 with a priority of 09 which is quite high. It is placed before the initialization of network cards because the Intel Wireless kernel module needs the daemon to run before it's loaded. As always, your mileage may vary, my network initialization script has a priority of 10. To see a listing of the services do
It will show a list of the services that run in runlevel 3. The letters in front decide whether the service will start "S" or not "K". The numbers after the letters show the priority with a higher number being a lower priority.
Add the service:
After you reboot the computer you should see a line saying:
Starting Intel Wireless IPW3945: [ OK ]
And wifi-radar and NetworkManager will show the available wireless networks in range.