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I have installed 12.04 and am attempting to update the wireless drivers (I have a Dell Insiron 6400), but it keeps asking for an installation CD that I do not have. How do I force it to stop asking for the CD and go to the network? The commands I am running are:

~$ sudo apt-get update
~$ sudo apt-get install firmware-b43-installer
~$ sudo apt-get remove bcmwl-kernel-source
~$ sudo reboot

It asks for the Cd at step 2

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See my answer for a very similar question:askubuntu.com/questions/178437/i-cant-update-12-04-lts/… –  IgnitE Sep 4 '12 at 20:25
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1 Answer

You can sudo nano /etc/apt/sources.list and comment out the CD-ROM lines near the top of the file by placing a # symbol as the first character. Or you can launch the software center and edit > software sources and uncheck the cdrom as an option.

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