I am trying to update php on my centos server. But getting following error [[email protected] ~]# yum update Loaded plugins: fastestmirror Determining fastest mirrors YumRepo Error: All mirror URLs are not using ftp, http or file. Eg. Invalid release/ removing mirrorlist with no valid mirrors: /var/cache/yum/addons/mirrorlist.txt Error: Cannot find a valid baseurl for repo: addons