yum No package xxx available

现象描述

# yum install epel-release
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
No package epel-release available.
Error: Nothing to do

解决方法

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -ivh epel-release-latest-7.noarch.rpm

检查是否安装成功

yum repolist

可以看到多了一个源

Extra Packages for Enterprise Linux 7 - x86_64