How do I update Linux Kernel?
Updating your Kernel version.
Connect to your server using SSH, switch to root and use Yum to update your kernel.
user# su root# yum update kernel
Reboot the server to the update to the installed Kernel
root# reboot
Checking your server is running the latest Kernel version.
The following command listed the currently available Kernel versions.
root# rpm -qa | grep kernel
The following will show the currently active Kernel
root# uname -vr
Note: Active Kernel version should match the latest installed package.