x86_64:https://wiki.centos.org/Download
ARM:http://mirror.nsc.liu.se/centos-store/altarch/
http://dl.fedoraproject.org/pub/epel/
阿里ARM源:https://mirrors.aliyun.com/centos-altarch
baseurl=http://dl.fedoraproject.org/pub/epel/7Server/aarch64/
x86_64:https://wiki.centos.org/Download
ARM:http://mirror.nsc.liu.se/centos-store/altarch/
http://dl.fedoraproject.org/pub/epel/
阿里ARM源:https://mirrors.aliyun.com/centos-altarch
baseurl=http://dl.fedoraproject.org/pub/epel/7Server/aarch64/