How do I get my wireless to automatically start after reboot

Question

I am running Ubuntu 11.10, and finally have figured out how to get my Broadcom BCM4306 wireless working. Unfortunately, I still have to enter the following commands "sudo modprobe -r b43 ssb" and "sudo modprobe b43" then enable networking and enable wireless every time after I reboot. Does anyone know how to make this process happen automatically?

Thanks for your help!

Solution 1

I do not know about that wireless device in special, but I do know something about modules

Concerning the modules, the commands you posted seem a bit confusing, as they first remove the module "b43" and then load it again:

sudo modprobe -r b43 ssb
#this removes (-r) the modules "b43" and "ssb" if they are already loaded (see *man modprobe*)

sudo modprobe b43
#this loads the module "b43"

To load a module at boot time, add the module-name to the end of the file /etc/modules (you can edit the file executing sudo gedit /etc/modules, for more info see man modules and man modprobe)

To explicitly prevent loading a module at boot time, you can blacklist it, by adding the module-name to the end of the file /etc/modprobe.d/blacklist.conf

So maybe in your case, it could be enough to add "ssb" into /etc/modprobe.d/blacklist.conf

Try it out and share with us :)

Solution 2

Under 12.04 you just need to comment out blacklist bcm43xx in /etc/modprobe.d/blacklist.conf.

To do that, run this command in the Terminal:

gksu gedit /etc/modprobe.d/blacklist.conf

This will open the file in a graphical text editor. In the editor, find the blacklist bcm43xx line and put a # character at the beginning of it. Save the file and quit the text editor.

Solution 3

Instead of putting sudo modprobe b43 in the /etc/modules just put b43.

I also commented out the b43 line in /etc/modprobe.d/blacklist.conf.

This worked for me.

Comments

[nilsonneto]

I'm surprised that you need to do this - have you tried instructions such as this to ensure your wireless is automatically recognised? ubuntubuzz.com/2011/09/fixing-broadcom-43xx-wireless-card.ht‌​ml

[Eliah Kagan]

Please note that when running graphical programs like gedit as root, gksu/gksudo (or kdesudo in Kubuntu) should be used, instead of straight sudo.