Configure the boot Kernel CentOS7

Introduction

This article discusses the process of configuring which Kernel your CentOS7 OS will load during system boot.  

Procedure

The cPanel software does not provide a method in which to manage the Kernel that your server will boot into by default.Normally, the kernel package update will automatically configure the latest version to be loaded during boot. It is important that the server is configured to boot into the latest Kernel for security purposes. In some cases, it may become necessary to change this configuration manually if there is a conflict with an update or the grub2 is not loading the most secure version.

This task involves advanced procedures and can impact your server's ability to boot successfully. Due to this, we advise that this task only be performed by a system administrator experienced in performing this task.

If you wish to proceed with this change, we advise reviewing the following article in its entirety. This discusses the information contained in the grub2 configuration and how to edit which Kernel will be used during boot. 

https://wiki.centos.org/HowTos/Grub2