I'm trying to upgrade (update) a very old CentOS7 setup.  I have, I think, successfully updated the CentOS7 to CentOS8.  The /etc/redhat-release file says 8.5, kernel version however is still 3.10, so I might have messed up some steps.  Also, this CentOS7 was a KDE custom setup.   During this process, I was running out of the GUI/DE - which at a point reverted to CLI only (inside a VMWare Workstation 16.2.x Virtual Machine).  I have tried to get KDE installed, but alas, no joy.  

  So I decided to follow the upgrade path to Alma Linux.  Following the instructions on GitHub, when I run the almalinux-deploy.sh script, I get:

Verify almalinux-relesae-latest.rpm package  ERROR (in red)

details say: RSA sha1 ((MD5) PGP) md5 NO OK MISSING KEYS: (MD5) PGP#c21ad6ea)

Any assistance you could provide would be greatly appreciated. 

I thank you for your time and expertise. 

Regards,

Stephen Beckwith