Howdy,
I found out that there is new Red Hat branding in yum.
1. Get newest yum. 2. Move all repos to different location (probably enable=0 also would work - not tested), and disable any other repo (if there is repo enabled from another sources/plugin). 3. Try to update the system.
One-liner: "sudo yum update yum -y && mkdir repos && sudo mv /etc/yum.repos.d/* repos/. && sudo yum update"
Vagrant (libvirt) oneliner:
" vagrant init centos/7 && vagrant up --provider=libvirt && vagrant ssh -c 'sudo yum update yum -y && mkdir repos && sudo mv /etc/yum.repos.d/* repos/. && sudo yum update'"
yum update returns: """ There are no enabled repos. Run "yum repolist all" to see the repos you have. To enable Red Hat Subscription Management repositories: subscription-manager repos --enable <repo> To enable custom repositories: yum-config-manager --enable <repo> """
Patch responsible for change: BZ-1175309-enable-repos-instruction.patch
This patch has number 230 in spec file.
Bests, Alex