semodule_link command not found

In this troubleshooting guide we learn how to fix semodule_link command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

semodule_link: command not found

or when using sudo you get the following error message

sudo: semodule_link: command not found

How To Fix semodule_link: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu semodule_link is provided by semodule-utils package.

semodule-utils is:

Security-enhanced Linux is a patch of the Linux® kernel and a number of utilities with enhanced security functionality designed to add mandatory access controls to Linux. The Security-enhanced Linux kernel contains new architectural components originally developed to improve the security of the Flask operating system. These architectural components provide general support for the enforcement of many kinds of mandatory access control policies, including those based on the concepts of Type Enforcement®, Role-based Access Control, and Multi-level Security.

This package contains the tools used to build policy modules in an SELinux environment.

To fix this problem, we can install more using the command below.

sudo apt-get -y install semodule-utils

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install semodule-utils.

sudo apt -y install semodule-utils

Or if you have aptitude installed you can use the following command.

sudo aptitude install semodule-utils

Summary

In this tutorial we learn how to fix semodule_link command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.