How to rebuild yum/dnf cache

Introduction

If the cache is corrupted in yum or dnf it could cause failures with the update systems. Rebuilding the cache will address the issue.

Procedure

1. Access your server via SSH as the root user
2. On a RHEL 7 or earlier server, rebuild the yum cache with the following commands:
   

   yum clean all

   yum makecache

   On a RHEL 8 or later server, rebuild the dnf cache with the following commands:
   

   dnf clean all

   dnf makecache