It is suggested to first update your operating system to the newest version, which should install a newer kernel in the process. You can then use the steps below to check if there is a newer version of the kernel available for install.
If your system is registered with Red Hat Network (RHN), then you can use the up2date command as follows:
For SMP kernel (multi core or multiple CPU) use command:
Use the yum command:
Use the rpm command if you have already downloaded an RPM file:
Use the zipper command:
Use the apt-get command: