How To Install kernel-debug on CentOS 7

In this tutorial we learn how to install kernel-debug on CentOS 7. kernel-debug is The Linux kernel compiled with extra debugging enabled

Introduction

In this tutorial we learn how to install kernel-debug on CentOS 7.

What is kernel-debug

The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system. The kernel handles the basic functions of the operating system allocation, device input and output, etc. This variant of the kernel has numerous debugging options enabled. It should only be installed when trying to gather additional information on kernel bugs, as some of these options impact performance noticably.

We can use yum or dnf to install kernel-debug on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install kernel-debug.

Install kernel-debug on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

After updating yum database, We can install kernel-debug using yum by running the following command:

sudo yum -y install kernel-debug

Install kernel-debug on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install kernel-debug using dnf by running the following command:

sudo dnf -y install kernel-debug

How To Uninstall kernel-debug on CentOS 7

To uninstall only the kernel-debug package we can use the following command:

sudo dnf remove kernel-debug

References

Summary

In this tutorial we learn how to install kernel-debug on CentOS 7 using yum and dnf.