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Old 06-14-2012, 03:26 AM   #1
koshy
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Registered: Mar 2010
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Wireless problem CentOS 6


Hi all
I have a strange problem. I was using wirless (Broadcom BCM4312 on Dell Vostro 1510).
OS is CentOS 6 uname -r gives 2.6.32-71.el6.i686. It was working fine until I updated some packages.I am unable to recollect the packages I updated.
The wireless stopped working after that and is showing Wireless Disconnected when clicking on NM applet on top right. Wireless card is listed as eth1 instead of wlan0

I did lsmod | grep wl and it shows wl, cfg80211 and lib8021 loaded.
I removed the modprobe wl from the rc.local it still gets loaded. Kindly help me get out of this mess and my wireless working.
Best regards
 
Old 06-16-2012, 05:25 PM   #2
okcomputer44
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Hi,

Did you check the yum update log?
That should contain all the updated packages, it should be somewhere at the /var/log/yum.log.
Then you can downgrade the package(s) to the old one.

As well as the yum update backs up the old updated package config file. So you should have them next to the newly installed rpm.

And the wireless card added by Network-manager in CentOS so probably the network-manager yum update killed it somehow.
You can have a look there to start to investigate it.

Dmesg what says to wlan?

Quote:
dmesg | grep wlan
 
Old 06-18-2012, 08:36 PM   #3
koshy
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Quote:
Originally Posted by okcomputer44 View Post
Hi,

Did you check the yum update log?
That should contain all the updated packages, it should be somewhere at the /var/log/yum.log.
Then you can downgrade the package(s) to the old one.

As well as the yum update backs up the old updated package config file. So you should have them next to the newly installed rpm.

And the wireless card added by Network-manager in CentOS so probably the network-manager yum update killed it somehow.
You can have a look there to start to investigate it.

Dmesg what says to wlan?
Well. I was off the keyboard for a while. I'll try to downgrade and revert with the status.
Thank you very much.
Koshy
 
Old 06-19-2012, 06:03 AM   #4
koshy
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Kindly tell me How to downgradeusing yum.log.
The dmesg | grep eth1 says eth1: Broadcom BCM4315 802.11 Hybrid Wireless Controller 5.100.82.112
Regards
Koshy
 
Old 06-20-2012, 12:08 AM   #5
okcomputer44
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Hi,

You can use the
Quote:
yum downgrade [packagename]
command to downgrade any packages.
Check the yum log to see what you upgraded (networking related packages) and try to downgrade them.

The other option is to downgrade package is the
Code:
rpm -Uvh --oldpackage [filename]
command.
So if you want to use the rpm then download the older version of the package and install it with the above command.

The different between the two is that rpm wont download any related dependency package if it's any and you need to do it manually one by one.
But yum will do the package dependency install automatically no matter if it's an upgrade or downgrade.
 
Old 06-27-2012, 08:10 AM   #6
mallimca23
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Registered: Aug 2011
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Hi kosal,

try this commands i have also faced wifi proble and my problem is resolved.

yum install b43-fwcutter b43-openfwwf

mkdir ~/b43-driver; cd ~/b43-driver

wget http://downloads.openwrt.org/sources...0.10.5.tar.bz2

tar jxf broadcom-wl-4.150.10.5.tar.bz2

cd broadcom-wl-4.150.10.5/driver

b43-fwcutter -w /lib/firmware/ wl_apsta_mimo.o


and reboot the system

Last edited by mallimca23; 06-27-2012 at 08:12 AM.
 
Old 06-27-2012, 11:40 PM   #7
koshy
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Registered: Mar 2010
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Hi mallimca

Thank you very much for the post
I tried your suggestion and everything is working now.
Thank you once again
Koshy

Quote:
Originally Posted by mallimca23 View Post
Hi kosal,

try this commands i have also faced wifi proble and my problem is resolved.

yum install b43-fwcutter b43-openfwwf

mkdir ~/b43-driver; cd ~/b43-driver

wget http://downloads.openwrt.org/sources...0.10.5.tar.bz2

tar jxf broadcom-wl-4.150.10.5.tar.bz2

cd broadcom-wl-4.150.10.5/driver

b43-fwcutter -w /lib/firmware/ wl_apsta_mimo.o


and reboot the system
 
Old 11-23-2012, 06:49 PM   #8
badbodh
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Registered: Nov 2012
Posts: 3

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Thumbs up thank you very much

Quote:
Originally Posted by mallimca23 View Post
Hi kosal,

try this commands i have also faced wifi proble and my problem is resolved.

yum install b43-fwcutter b43-openfwwf

mkdir ~/b43-driver; cd ~/b43-driver

wget http://downloads.openwrt.org/sources...0.10.5.tar.bz2

tar jxf broadcom-wl-4.150.10.5.tar.bz2

cd broadcom-wl-4.150.10.5/driver

b43-fwcutter -w /lib/firmware/ wl_apsta_mimo.o


and reboot the system
i signed up just to thank you. big sigh of relief
 
  


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