$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install New Kernel in Gnu/Linux Distros

GNU/Linux Installing New Kernel Guide

The linked Tutorials Show you Step-by-step How to Install a New Kernel in GNU/Linux Distributions.

Especially relevant: for the Rpm based Distros then only arbitray choice is often to build a Custom Kernel from Source Code.

Instead, on the Ubuntu Based OSes possibly you dispose also of a Repository of Kernel Prebuilt Images.

Again, on Ubuntu based desktops an easy Kernel Update may be achieved with the Mainline UI Tool.

Furthermore, on Debian/Ubuntu and Arch based desktops an easier and often better Alternative is represented by the ready-made XanMod and Liquorix Kernel Setup.

After a Kernel Upgrade, it is Strongly Recommended to Immediately Proceed with a Firmware Update to Ensure Hardware Compatibility and Optimal Performance. Follow this Guide: How to Update Linux Firmware on GNU/Linux Distros.

How to Install New Kernel in GNU/Linux Distros

GNU/Linux Kernel Installation Guides

Building Custom Kernel from Source Code
Liquorix Kernel Installation on GNU/Linux desktops
XanMod Kernel Installation on GNU/Linux desktops
Easy Kernel Update with Mainline UI on Ubuntu-based desktops
Prebuilt Kernel Images Setup on Ubuntu Servers