M芯片 新安装的centos7虚拟机无法用yum

参考链接：

https://developer.aliyun.com/mirror/centos?spm=a2c6h.13651102.0.0.3e221b11LM3dnf

https://developer.aliyun.com/mirror/centos-altarch/?spm=a2c6h.13651104.d-2001.3.298a320cTqm1un

操作

# 第一步
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

# 第二步
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-altarch-7.repo

# 第三步
yum makecache