http://dl.fedoraproject.org/pub/epel/

 epel-release-latest-.noarch.rpm       redhat5

 epel-release-latest-.noarch.rpm       redhat6

 epel-release-latest-.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]# ll

total

-rw-------  root root  Jun    CenOS-Base.repo

-rw-------  root root     Jun    CenOS-Base.repo~

-rw-r--r--  root root   Aug    epel.repo

-rw-r--r--  root root  Aug    epel-testing.repo

-rw-r--r--  root root  Mar     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。