http://lampblogs.com/blog/how-to-migrate-from-centos-8-to-centos-stream
https://www.centos.org/centos-stream/
Converting from CentOS Linux to CentOS Stream:
root@centos-linux# dnf install centos-release-stream
root@centos-linux# dnf --allowerasing distro-sync
root@centos-stream# cat /etc/centos-release CentOS Stream release 8
Other Notes
9 September 2021
Add these 2 lines to /etc/dnf/dnf.conf
fastestmirror=1 max_parallel_downloads=8
5 April 2021
Migrated VM #1 and it had to remove the following:
ImageMagick-c++-devel ImageMagick-devel OpenEXR-devel ilmbase-devel libgs-devel libreoffice-sdk
VM #2 also removed the following:
NetworkManager-libnm-devel
New install notes