How can I install firmware-b43-installer driver if I can't connect to internet by wire?

  • If you think it is better that I ask this question inside the comments of question mentioned above, then let me know. – Woeitg Feb 7 '16 at 11:41
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    Possible duplicate of Installing Broadcom Wireless Drivers – Pilot6 Feb 7 '16 at 11:42
  • did you read my quesiton? I know it is a duplicate of that question but my problem is related to some special unknown case in that question. – Woeitg Feb 7 '16 at 11:46
  • Nothing is unknown. Did you see the table? It is firmware-b43-installer. – Pilot6 Feb 7 '16 at 11:47
  • I am using 15.10 version. for that version it is unknown. – Woeitg Feb 7 '16 at 11:49

You need to install firmware-b43-installer.

If you do not have an alternative internet connection, do it this way.

If you installed bcmwl-kernel-source, then remove it.

    sudo apt-get purge bcmwl-kernel-source
  1. Download these files

http://mirrors.kernel.org/ubuntu/pool/main/b/b43-fwcutter/b43-fwcutter_015-9_amd64.deb http://www.lwfinger.com/b43-firmware/broadcom-wl-5.100.138.tar.bz2

  1. Copy them to your Ubuntu Home folder.

  2. Run in terminal

    sudo dpkg -i b43-fwcutter_015-9_amd64.deb
    tar xfvj broadcom-wl-5.100.138.tar.bz2
    sudo b43-fwcutter -w /lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o
  3. Reboot or run:

    sudo modprobe b43

Note: For 32-bit systems download http://mirrors.kernel.org/ubuntu/pool/main/b/b43-fwcutter/b43-fwcutter_019-2_i386.deb instead of amd64 and update the file name in the dpkg command.

For Ubuntu 16.04 http://mirrors.kernel.org/ubuntu/pool/main/b/b43-fwcutter/b43-fwcutter_019-2_amd64.deb should be installed or the i386 alternative.

If you are having trouble finding another computer, an Android phone can be used as a USB modem. You can connect the phone and choose "USB modem" in settings.

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  • What is the difference between this solution and this one? I am asking this question because I have a serious problem with my wireless connection as it goes off frequently so I was thinking maybe there are some differences between solutions that may help me find the problem. – Woeitg Feb 10 '16 at 10:35
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    These are different drivers. See askubuntu.com/questions/55868/… This is a solution to install the firmware without an internet connection. – Pilot6 Feb 10 '16 at 10:36
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    This worked for me in the installed system but not in the installer (which would be good to fetch updates). – Melebius Jun 28 '17 at 9:45
  • Download link for Ubuntu 16.04 on 32-bit mirrors.kernel.org/ubuntu/pool/main/b/b43-fwcutter/… – motorbaby May 18 '19 at 21:21
  • @motorbaby Thanks, updated. – Pilot6 May 20 '19 at 7:17

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