http://dl.fedoraproject.org/pub/epel/ epel-release-latest-5.noarch.rpm       redhat5 epel-release-latest-6.noarch.rpm       redhat6 epel-release-latest-7.noarch.rpm       redhat7 安装他们系统中

验证查看是否安装成功：yum repolist

[root@localhost yum.repos.d]# yum repolist

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* epel: mirror01.idc.hinet.net

repo id repo name status

base CentOS-5Server - Base 3,667

epel Extra Packages for Enterprise Linux 5 - x86_64 6,674

extras CentOS-5Server - Extras 266

updates CentOS-5Server - Updates 749

repolist: 11,356

查看某个包的详细信息：yum --enablerepo=epel info htop

root@localhost yum.repos.d]# yum --enablerepo=epel info htop

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* epel: mirror01.idc.hinet.net

Available Packages

Name : htop

Arch : x86_64

Version : 1.0.3

Release : 1.el5

Size : 88 k

Repo : epel

Summary : Interactive process viewer

URL : http://hisham.hm/htop/

License : GPL+

Description: htop is an interactive text-mode process viewer for Linux, similar to

列出epel源的所有包列表： yum --disablerepo="*" --enablerepo="epel" list available | less [root@localhost yum.repos.d]# yum --disablerepo="*" --enablerepo="epel" list available |grep htop

   htop.x86_64 1.0.3-1.el5 epel

   这个可用于:查找相关的包集合,然后选择

remi库 http://rpms.famillecollet.com/enterprise/

　　remi-release-4.rpm

   rpm --import http://rpms.famillecollet.com/RPM-GPG-KEY-remi

　  

   remi-release-5.rpm

   rpm --import http://rpms.famillecollet.com/RPM-GPG-KEY-remi

　　

   remi-release-6.rpm

   rpm --import http://rpms.famillecollet.com/RPM-GPG-KEY-remi

　　

   remi-release-7.rpm

   rpm --import http://rpms.famillecollet.com/RPM-GPG-KEY-remi

 

yum --enablerepo=remi info htop  

两个源已安装OK [root@localhost yum.repos.d]# pwd/etc/yum.repos.d[root@localhost yum.repos.d]# lltotal 24-rw------- 1 root root 1528 Jun 30  2015 CenOS-Base.repo-rw------- 1 root root    0 Jun 30  2015 CenOS-Base.repo~-rw-r--r-- 1 root root  954 Aug 11  2010 epel.repo-rw-r--r-- 1 root root 1054 Aug 11  2010 epel-testing.repo-rw-r--r-- 1 root root 2298 Mar  1  2014 remi.repo

注意：安装REMI库不要在启用了REMI库时运行yum update。因为REMI库的包名与RHEL/CentOS默认库中的相同，运行yum update可能会触发意外的更新。平时禁用REMI库，在你需要安装RMEI库中独有的包时再启用。安装REMI库之前，首先需要启用EPEL库，因为REMI中的一些包依赖于EPEL。