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Accepted
John Baber-Lucero
Asked: 2012-08-28 07:17:55 +0800 CST

How do I handle "Firmware file X not found" stopping bootup?

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I recently upgraded my desktop mac to Precise and now can't get past the Ubuntu 12.04 splash page. The splash freezes with

[   19.931097] b32-phy0 ERROR: Firmware file "b43/ucode16_mimo.fw" not found
[   19.9311126] b32-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.

written on it

This is when I choose 3.2.0-generic from the grub menu. If I choose to load up older kernels, I still get the same thing.

How can I make my computer finish booting again?

I'm able to ssh into the machine and poke around, but the actual screen freezes at the splash.

The firmware error is now gone ,but I still can't get past the splash screen

dmesg

cat kern.log

12.04

1 Answers

  1. Best Answer

    If you've got the possibility to connect to the internet by cable - highly likely if you can ssh into your machine - run jockey-text and see if this helps.

    If this doesn't solve the issue just download the firmware from wireless.kernel.org and just manually extract/copy it to /lib/firmware/b43/. Use scp for copying. If you can install b43-fwcutter and run b43-fwcutter -i to see what device you're on (if you don't already know).

    If both ways fail update your question with details. The Ubuntu Wiki bcm43xx page has some details to continue the debugging.

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