Wireless on T400 running CentOS 5.4
Finally, I forced myself to learn Linux by formatting my laptop and installed CentOS 5.4. Only leave an old and slow desktop for vpn. Everything runs fine except the wireless. Google and find Kurt's blog (Thanks Kurt). Steps: First make sure the RPMForge repo is installed rpm -Uhv http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.x86_64.rpm yum clean all yum update Next install the driver for the PRO/Wireless 5100 AGN[Shiloh] card from Intel yum install iwl5000-firmware The wireless device should now be working, and you can enable the NetworkManager to start using it chkconfig NetworkManager on service NetworkManager start and you may want to save yourself some wait time at boottime by disabling the network since you don't need that anymore chkconfig network off Next you need to configure your wireless connection settings by going to System > Preferences > More Preferences > Network Connections