mirrorlist.centos.org no longer available – updating centos 8 repository Rumi, January 18, 2025 mirrorlist.centos.org doesn’t exists anymore. From the .repo file: # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. To resolve the issue you can mass update all .repo files: sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/CentOS-*.repo sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/CentOS-*.repo sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/CentOS-*.repo Administrations Configurations (Linux) CentOS 8mirrorlist