OSMH: Difference in Package Count Between OSMH Installed Packages and Oracle Linux Operating System

On an instance registered with OS Management Hub (OSMH), the package count displayed on the OSMH console is different to the package count displayed by the Oracle Linux Operating System of the instance.

In this case, the Oracle Linux OS shows a count of 1422 installed packages:

$ sudo dnf list --installed | wc -l 
1422  
$ rpm -qa | wc -l 
1422 

However, the OSMH console shows a count of 1421 installed packages:

$ rpm -qa | grep gpg-pubkey 
gpg-pubkey-ad986da3-5cabf60d

This is expected behaviour and is not a problem.

 The gpg-pubkey* packages are examples of 'pseudo-rpm' packages that are created on instances and do not reside in any software source (this is true for both standard Yum/DNF as well as OSMH). These packages are used to store and manage rpm keys.