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I just got ubuntu installed on my laptop but I can't access the internet on it. I have a flashdrive and another laptop that's running windows and does have internet access. I tried downloading firmware-b43-installer to the windows laptop and then moving it over to the flashdrive. But I couldn't figure out how to install it from the flashdrive back onto the ubuntu computer. How can I get it installed onto my ubuntu computer?

Chill's sudo commands all seemed to go through but the internet still didn't work. The dmesg command gave a ton of output:`[ 11.974594] b43-phy0: Broadcom 4331 WLAN found (core revision 29)

[   11.974985] b43-phy0: Found PHY: Analog 9, Type 7 (HT), Revision 1

[   11.974995] b43-phy0: Found Radio: Manuf 0x17F, ID 0x2059, Revision 0, Version 1

[   11.974996] b43-phy0 warning: 5 GHz band is unsupported on this PHY

[   11.982127] b43 bcma0:1: Direct firmware load for b43/ucode29_mimo.fw failed with error -2

[   11.982138] b43 bcma0:1: Direct firmware load for b43/ucode29_mimo.fw failed with error -2

[   11.982149] b43 bcma0:1: Direct firmware load for b43-open/ucode29_mimo.fw failed with error -2

[   11.982155] b43 bcma0:1: Direct firmware load for b43-open/ucode29_mimo.fw failed with error -2

[   11.982157] b43-phy0 ERROR: Firmware file "b43/ucode29_mimo.fw" not found

[   11.982158] b43-phy0 ERROR: Firmware file "b43-open/ucode29_mimo.fw" not found

[   11.982159] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website.

[   12.009721] Modules linked in: b43 mac80211 cfg80211 ssb drbg ansi_cprng joydev dm_crypt applesmc input_polldev intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp uvcvideo kvm_intel kvm snd_hda_codec_cirrus videobuf2_vmalloc snd_hda_codec_generic videobuf2_memops irqbypass crct10dif_pclmul btusb btrtl crc32_pclmul btbcm videobuf2_v4l2 videobuf2_core btintel snd_hda_intel v4l2_common input_leds snd_hda_codec videodev snd_hda_core aesni_intel bcm5974 aes_x86_64 media lrw snd_hwdep gf128mul snd_pcm glue_helper bluetooth ablk_helper snd_seq_midi cryptd snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer bcma snd thunderbolt mei_me lpc_ich mei shpchp soundcore apple_gmux sbs acpi_als sbshc kfifo_buf industrialio apple_bl mac_hid r8169 mii parport_pc ppdev lp parport autofs4 hid_generic
Zach O
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  • Is it a .deb file? –  May 06 '16 at 23:37
  • if it is a .deb file you can install it by running sudo dpkg -i firmware-b43-installer_015-9_all.deb or whatever the deb file is named. – Michael Lindman May 06 '16 at 23:41
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    also, do you have the ability to connect via Ethernet cable to your router? –  May 06 '16 at 23:41
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    @MichaelLindman good advice, but I just looked up that package and it looks like it depends on the b43-fwcutter package. And the firmware-b43-installer package requires internet access, since all it does is start a download of the firmare from a server and unpack them. @Zach O I think your best bet would be to find a place to plug in an Ethernet cable, if at all possible. –  May 06 '16 at 23:44
  • @NickWeinberg Interesting, I've unpacked the .deb file and found that it gets http://mirror2.openwrt.org/sources/broadcom-wl-5.10.56.27.3_mipsel.tar.bz2 so it'll be possible to install it manually but chili555s answer is a much easier solution. – Michael Lindman May 06 '16 at 23:59
  • try this https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx#b43_-_No_Internet_access – Mohit Rajan May 07 '16 at 01:43
  • @Mohit_Rajan I'll be honest, as a noob I have serious trouble following and understanding those instructions all the way through. – Zach O May 07 '16 at 02:37
  • @NickWeinberg I don't at this time. I'd rather not go out and buy a new adapter for 20 dollars but I will if I have to. Thanks – Zach O May 07 '16 at 02:38
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    Possible duplicate of Installing "fimware-b43-installer" offline – Pilot6 May 07 '16 at 09:45

1 Answers1

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Download the file b43.zip from this forum thread: http://ubuntuforums.org/showthread.php?t=2316899&highlight=b43.zip Transfer it to the desktop of the Ubuntu computer on your flash drive. Right-click it and select 'Extract Here.' Now, from the terminal:

sudo mkdir /lib/firmware/b43
sudo cp ~/Desktop/b43/*  /lib/firmware/b43
sudo modprobe b43

If your wireless doesn't start immediately, reboot.

From your dmesg, it appears that your device also requires the "mimo" firmware files. Please remove the older, unneeded folder from your desktop:

cd ~/Desktop
rm -r b43

On my Dropbox account, I have the newer firmware files. Please download this to your desktop: https://dl.dropboxusercontent.com/u/58267392/b43_newest.zip Right-click it and select 'Extract Here.'

Now open a terminal and do:

sudo cp ~/Desktop/b43/*  /lib/firmware/b43
sudo modprobe b43

If your wireless doesn't start immediately, reboot.

chili555
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