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Old 11-06-2014, 08:21 AM   #1
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Zenwalk 7.4 Broadcom (BCM4312) wifi not working


I am using Zenwalk 7.4 with 3.10.25 Kernel on a netbook

My wifi device resp. interface is not listed in iwconfig and ifconfig
I tried the following hint from a user with these files
and and zenpkg with no success.

lspci | grep BCM
06:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
07:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
Old 11-06-2014, 11:53 AM   #2
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Exactly the same stuff I have in my old laptop. There are several Gotchas

1. If you have something like 'Fast Ethernet Switching' set in the bios, it will disable wifi if the ethernet is configured, and vice versa.
2. The rc scripts probably only set up one network interface.

3. The Broadcom 4312 needs firmware from the windows driver cut out by bw-fwcutter. Follow the directions here

Use the version mentioned of b43-fwcutter. It is tricky to use and should spit up some stuff that it's extracting. If it doesn't check your syntax.

4. wpa supplicant doesn't want your wifi password in the config file, it wants the long version, as supplied by wpa_passphrase. The command is
wpa_passphrase   Your_essid   Your_password
and it gives you back a few lines for the config. note that WEP is not supported by the linux driver.
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Old 11-06-2014, 12:49 PM   #3
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Great it worked. The link you provided was useful. I downloaded and
and installed the cutter first (luckily I used Slackware before so b43-fwcutter installation was no problem)

and then I ran as root
tar xjf broadcom-wl-5.100.138.tar.bz2
b43-fwcutter -w /lib/firmware broadcom-wl-5.100.138/linux/wl_apsta.o
I unloaded b43, bcma, brcmsmac and wl via modprobe -r and rebooted the machine.
Now iwconfig shows the wlan0 interface.

I think setting up a connection wont be hard.

Again thank you very much.

edit: Forgot to mention that I downloaded before and installed it with
installpkg wireless-tools-29-i486-6.txz

Last edited by Resauce; 11-06-2014 at 01:07 PM.


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