yum update 出现 Could not resolve host: repo.mysql.com; Unknown error解决办法

3,250 次访问 2019-10-16

Winte Wu

如出现

Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
mysql-community-common-5.7.27- FAILED
http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/mysql-community-common-5.7.27-1.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: repo.mysql.com; Unknown error"B  --:--:-- ETA
Trying other mirror.

本地尝试下载rpm文件可以成功，服务器上异常，一般出现是因为DNS解析异常导致，换一个DNS服务即可解决

vi /etc/resolv.conf

增加如下服务器

nameserver 8.8.8.8

重启网络

systemctl restart network

再次尝试，更新成功！