FATAL: Module vboxguest not found.

While creating a new virtual machin using VirtualBox and using CentOS 7.6-1810 I forget the steps to install the packages needed to compile the modules needed.

This time after "inserting" the "Guest Additions" image and running the script to install them the following error mesage was displayed:

FATAL: Module vboxguest not found.

These are the steps I found from different sources to install the packages needed:

yum install dkms binutils gcc make patch libgomp glibc-headers glibc-devel

There's one thing, the package "dkms" was not available from the origial repos:

I'm not sure where to get it but until now never need it.

The install the following:

yum install kernel-headers-$(uname -r) 
yum install kernel-devel-$(uname -r)

Now, you should be ready to install the "Guest Additions".