The Linux kernel is a program that constitutes the central core of the operating system. It can directly access the underlying hardware and make it available to the user to work with it using the shell.
In this recipe, we will learn how to prime the kernel by working with dynamically loaded kernel modules. Kernel modules are device driver files (or filesystem driver files) that add support for specific pieces of hardware so that we can access them.
You will not work very often with kernel modules as a system administrator, but having a basic understanding of them can be beneficial if you have a device driver problem or an unsupported piece of hardware.
To complete this recipe, you will require a minimal installation of the CentOS 7 operating system with root privileges.