在CentOS6.x或CentOS7.x上安装EPEL Repo,Extra Packages for Enterprise Linux (EPEL)

Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again

Repo

repository，资源库，源的意思。RHEL EPEL(Extra Packages for Enterprise Linux) Repo是Linux发行版中最大的软件仓库之一，免费，丰富的软件包更新。

介绍：

http://fedoraproject.org/wiki/EPEL

Support Red Hat Enterprise Linux (RHEL), CentOS and Scientific Linux (SL), Oracle Linux (OL).

安装步骤：

CentOS 6.x

sudo rpm --import http://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-6 //导入GPG key

yum-config-manager epel | grep gpgkey

gpgkey = /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 //检查GPG key

sudo rpm -Uvh http://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm //安装

CentOS 7.x

sudo rpm --import http://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-7 //导入GPG key

yum-config-manager epel | grep gpgkey

gpgkey = /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7 //检查GPG key

sudo rpm -Uvh http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm //安装

或者

yum install epel-release -y

NOTE for CentOS users

You can install EPEL by running yum install epel-release. The package is included in the CentOS Extras repository, enabled by default.

可能出现的问题：

运行yum报错：

Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again

解决办法：

vim /etc/yum.repos.d/epel.repo

编辑[epel]下的baseurl前的#号去掉，mirrorlist前添加#号。

正确配置如下：

[epel]

name=Extra Packages for Enterprise Linux 6 - $basearch

baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch

#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch

failovermethod=priority

enabled=1

gpgcheck=1

gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

再运行

yum clean all

yum makecache

yum repolist //确认EPEL状态

repo id repo name status

base CentOS-6 - Base 6518

epel Extra Packages for Enterprise Linux 6 - x86_64 11628

extras CentOS-6 - Extras 38

rpmforge RHEL 6 - RPMforge.net - dag 245

updates CentOS-6 - Updates 1199

repolist: 19628

完成

另外：有的时候EPEL需要手动开启

yum install yum* //为了安装yum-config-manager

或者

yum install yum-utils.noarch

sudo yum-config-manager --enable epel //开启EPEL Repository，有的时候无法自动开启

或者

sudo yum-config-manager --enable epel*

epel Extra Packages for Enterprise Linux 6 - x86_64 11,746

epel-debuginfo Extra Packages for Enterprise Linux 6 - x86_64 - D 2,207

epel-source Extra Packages for Enterprise Linux 6 - x86_64 - S 0

epel-testing Extra Packages for Enterprise Linux 6 - Testing - 950

epel-testing-debuginfo Extra Packages for Enterprise Linux 6 - Testing - 78

epel-testing-source Extra Packages for Enterprise Linux 6 - Testing - 0