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

How to Update Kernel on Mint GNU/Linux Distro

GNU/Linux Mint Updating Kernel Guide

The tutorial shows you step-by-step How to Update/Upgrade Kernel on Mint GNU/Linux desktops – Step by step Tutorials.

And this Update Linux Kernel on Mint expose All the Best available Methods.

Especially relevant: the first thing to do is a simple System Update.

How to Update Kernel on Mint GNU/Linux Distro

GNU/Linux Mint Kernel Updating Guide