How to select the correct kernel to boot from on CloudLinux

Introduction

When installing CloudLinux, you will need to switch from the CentOS kernel to the CloudLinux kernel.

You may see the following in WHM >> LVE Manager if you are not using the correct kernel:

Reboot your system to update the kernel

List the currently installed kernels on your server:

awk -F\' '$1=="menuentry " {print i++ " = "$2}' /etc/grub2.cfg

The output will vary depending on your hosting provider and server environment, but the CloudLinux kernel will be labeled similarly to what is below. For CloudLinux, you want to make sure you are booting a kernel with "lve" in the name:
```
1 = CloudLinux (3.10.0-962.3.2.lve1.5.52.el7.x86_64) 7.9 (Boris Yegorov)
```
The number on the left indicates the option in the list that you would choose during boot time. You can make the CloudLinux option the default by referencing the option number in the following command:
```
grub2-set-default 1
```
Reboot the server, and it should boot into CloudLinux automatically

CloudLinux provides instructions on selecting the correct kernel to boot from here: