Could not resolve host: mirrorlist.centos.org

Issue

CentOS 7 ELS install failed

Error: `Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=genclo error was

curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"`

Environment

• CentOS 7
• CentOS 7 ELS

Solution

sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/CentOS-*.repo
sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/CentOS-*.repo
sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/CentOS-*.repo
yum clean all
yum makecache

Cause

CentOS 7 has reached its end-of-life