проблема с включением репозиториев в RHEL 7

Обнаружено, что это ошибка сервера.https://serverfault.com/questions/798427/what-linux-distribution-is-the-amazon-linux-ami-based-on

Подводя итог :Цитата от людей AWS:

The Amazon Linux AMI is not based on any one upstream Linux project. That said, one of the goals of the most current Amazon Linux AMI (2013.09) is to be as compatible as possible with RHEL 6. If there are places in which you find that we are not, please let us know so that we can investigate further."