Intro Converted the 'tx2' PC from CentOS8 8.3 to Rocky Linux 8.4 Ref: Tecmint.com, and rockylinux.org Migration Before: cat /etc/redhat-release CentOS Linux release 8.3.2011 Used the migrate2rocky.sh script. Website says you do not need to update to lastest CentOS. wget the script: wget https://raw.githubusercontent.com/rocky-linux/rocky-tools/main/migrate2rocky/migrate2rocky.sh chmod +x migrate2rocky.sh execute the script, reboot when finished: bash migrate2rocky.sh -r reboot after: cat /etc/redhat-release Rocky Linux release 8.4 (Green Obsidian)