YumRepo Error: All mirror URLs are not using ftp, http[s] or file
Be sure that you can ping vault.centos.org. Then edit /etc/yum.repos.d/CentOS-Base.repo Comment out mirrorlist and uncomment baseurl Change all baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/ to baseurl=http://vault.centos.org/$releasever/centosplus/$basearch/ And enjoy your yum update!!! 😉