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i've just install Ubuntu 14.04 from a key on my computer, I have already installed 5 time ubuntu on other computer, but for this one, i can't connect to internet at all...

And i have try every solution i could find on internet !

So, first of all, ubuntu doesn't find any wifi connection, so i try to connect to Ethernet: Wired connection 1 doesn't work...

I try this:

lspci -knn | grep Net -A2

it say:

02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 

   802.11b/g/n [14e4:4365] (rev 01)
   Subsystem: Lenovo Device [17aa:0611]
   Kernel_driver in use: bcma-pci-bridge

i don't know what is it... so let's try another solution, when i set these following line:

lspci -n | egrep '0200|0280' | awk '{print$3}'

it say:

1969:10a0
14e4:4365

So I try to do these following line:

sudo apt-get remove --purge bcmwl-kernel-source
sudo rm /etc/modprobe.d/blacklist-bcm43.conf #its ok if this command does nothing or fails
sudo modprobe b44

But the first line fails, the second too, and the third seems to works.. (but i'm not sure there are no outputs...)

EDIT: i did what suggested here: How to install Broadcom wireless drivers offline?

first i cp pool/main/d/dkms/dkms_XXXXX.deb and pool/restricted/b/bcmwl/bcmwl-kernel-source_XXXXX.deb from my key in my home, then i did sudo dpkg -i *.deb. Then i download this: http://mirrors.kernel.org/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu0.2_amd64.deb (64-BIT DRIVER FROM UBUNTU REPOSITORY) and I retry dpkg again: not working... (reboot done)

Here is my screenshot: (after trying to dpkg the 2 .deb in my bottable key, i download the 64BIT-DRIVER in an other key and i retry like I said to dkpg the downloaded one)

dpkg *.deb the 64bit driver

EDIT 2: Ok, it seems i have installed a wrong version... How can i remove driver i've just downloaded ?

So I recap: I have from my key bootable ubuntu 14.04:

dkms_2.2.0.3-1.1ubuntu5.14.04_all.deb
bcmwl-kernel-source_6.30.223.141+bdcom-Oubuntu2_amd64.deb

and from the answer here: How to change desktop background from command line in Unity? i have these one:

bcmwl-kernel-source_6.30.223.248+bdcom-Oubuntu0.2_amd64.deb
dkms_2.2.0.3-1.1ubuntu5.14.04.5_all.deb

I have the 4 of them in my desktop... i think i install the 4 of them... how can i know which one i have, how can i delete the one i don't need ?

Thanks !

marked as duplicate by Pilot6, Elder Geek, Jeremy31, David Foerster, Eric Carvalho Mar 29 '16 at 0:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • i did what you tell in this post: first i cp pool/main/d/dkms/dkms_XXXXX.deb and pool/restricted/b/bcmwl/bcmwl-kernel-source_XXXXX.deb from my key in my home, then i did sudo dpkg -i *.deb. Then i download the 64-BIT DRIVER FROM UBUNTU REPOSITORY (with your link) and I retry dpkg again: not working... (reboot done) – Ugo Hed Mar 27 '16 at 16:54
  • Did you replace XXXX with the real file name? – Pilot6 Mar 27 '16 at 16:57
  • Please add information to your question, not to comments. – Pilot6 Mar 27 '16 at 16:58
  • 2
    You have 14.04.2. You need to remove the driver you copied from the installation disk and download another one as directed in the answer. mirrors.kernel.org/ubuntu/pool/restricted/b/bcmwl/… – Pilot6 Mar 27 '16 at 17:07
  • You install a wrong version. It does not build. – Pilot6 Mar 27 '16 at 17:08
up vote 0 down vote accepted

So ok, just follow the link here: How to install Broadcom wireless drivers offline? and follow the wonderful answer of Pilot6, and don't do anything else liek me please... the wifi should works after that !

  • 1
    This is not an answer to your question. You can just agree that the question is a duplicate. This is a comment and it should be deleted. – Pilot6 Mar 27 '16 at 18:03
  • How do i accept this is a duplicate ? – Ugo Hed Mar 27 '16 at 18:05
  • 1
    Thhere must be a link somewhere around your question. – Pilot6 Mar 27 '16 at 18:07
  • Ok, thanks for the help, and so sorry for the mess i maid with my question/comment/duplicate, i'm new in stack overflow and i learn a lot, so sorry again i will mark it in duplicate ok resolve when i will find the button ! – Ugo Hed Mar 27 '16 at 18:13

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