Every time I run dnf, I get this: ========= [root at vmhost2 ~]# dnf upgrade CentOS Linux 8 - AppStream 70 B/s | 38 B 00:00 Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist ========= I tried disabling the repository, but that only gives me exactly the same error for the baseos repository. I doubt it is a problem in the .repo files. Something else is going on. Ping to mirrorlist.centos.org works on both ipv4 and ipv6, so I know that both name resolution and network connectivity are working. Thanks! ======== Bill Gee