Filipe Brandenburger wrote: > Does it work if you use http:// instead of https:// with the same URL? No, I get exactly the same error: --------------------------------------- [tim at helen tmp]$ sudo yum update Loaded plugins: downloadonly, fastestmirror, priorities, protect-packages, protectbase Loading mirror speeds from cached hostfile Could not retrieve mirrorlist http://mirrors.fedoraproject.org/mirrorlist?repo=epel-5&arch=x86_64 error was [Errno 14] HTTP Error 404: Not Found Error: Cannot find a valid baseurl for repo: epel --------------------------------------- But thanks for trying to help. -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College Dublin