centos7 yum update更新出错 yum源出错 repodata/repomd.xml 404error

执行 yum update 出现repo 404错误
failure: repodata/repomd.xml from mysql56-community: [Errno 256] No more mirrors to try.
http://repo.mysql.com/yum/mysql-5.6-community/el/7/aarch64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

或者其它:
http://mirrors.163.com/centos/7/os/aarch64/repodata/repomd.xml 404error
http://mirrors.163.com/centos/7/extras/aarch64/repodata/repomd.xml 404error
http://repo.mysql.com/yum/mysql-5.6-community/el/7/aarch64/repodata/repomd.xml 404error
http://repo.mysql.com/yum/mysql-5.6-community/el/7/aarch64/repodata/repomd.xml 404error

查看了一下,原来是163的源地址改变了目录,只要将
cd /etc/yum.repos.d
vim CentOS-Base.repo
centos7 yum update更新出错 yum源出错 repodata/repomd.xml 404error_第1张图片
将 baseurl 中的$basearch 改为 x86_64即可
centos7 yum update更新出错 yum源出错 repodata/repomd.xml 404error_第2张图片

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