Before updating the Linux kernel, update your operating system first to ensure stability and security. Then, depending on which Linux distributor you use, enter one of the following commands to check if a new version of the kernel is available.
If your system is registered with Red Hat Network (RHN), you can use the up2date command as follows:
For SMP kernel (multi core or multiple CPU) use the following command:
Use the yum command:
If you have already downloaded an RPM file, use the rpm command :
For this distributor, please use the zipper command:
The apt-get will help you here: