[CentOS] How to remove the wrong wireless firmware module
Ned Slider
ned at unixmail.co.uk
Wed Jun 3 14:39:38 UTC 2009
David McGuffey wrote:
> How do I back out of these directions?
>
> "yum install iwl4965-firmware
>
> rmmod iwl4965; modprobe iwl4965
>
rmmod iwl4965
yum erase iwl4965-firmware
> Your wireless device should be working now. Enable NetworkManager to use it.
> Starting from CentOS 5.3 (kernel 2.6.18-128) the kernel includes the iwlagn
> kernel module. If you are running an older kernel, please look at the ipw4965
> method above.
> First download and install the firmware (see above), then just reload the iwlagn
> kernel module:
>
> rmmod iwlagn; modprobe iwlagn"
>
> I managed to grab the wrong set of firmware for my Dell Latitude D830. There was
> conflicting guidance on the Internet as to which device was installed...I've now
> found out that it is a Broadcom device. I need to remove the Intel firmware and
> install the Broadcom firmware.
>
No, not really. Firmwares are generaly installed to /etc/firmware and
the correct firmware will automatically be loaded and used by the
wireless driver, so it really doesn't matter if a bunch of other
firmwares are present on your system or not.
But if you want to uninstall them, just use:
yum erase iwl4965-firmware
> BTW, it appears that support for the Broadcom wireless device is not in the
> CentOS repositories. I think I 'm going to have to download the Broadcom files
> and "make" the firmware module. I'd like to avoid that...any guidance?
>
Please show us:
lspci
then:
lspci -n | grep '0X:0Y.Z'
where 0X:0Y.Z is the first column output for the Broadcom wireless
device. Then we may be able to tell you if it's supported or not, and
what driver to use.
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