实验环境：
[root@bogon zhi]# uname -a Linux bogon 2.6.32-642.11.1.el6.i686 #1 SMP Fri Nov 18 18:48:28 UTC 2016 i686 i686 i386 GNU/Linux [root@bogon zhi]# cat /etc/redhat-release CentOS release 6.8 (Final)
一、安装Wget
[root@bogon zhi]# yum install wget
已加载插件：fastestmirror, refresh-packagekit
设置安装进程
Loading mirror speeds from cached hostfile
* base: mirror.bit.edu.cn
* epel: mirror.lzu.edu.cn
* extras: mirrors.btte.net
* updates: mirrors.btte.net
解决依赖关系
--> 执行事务检查
---> Package wget.i686 0:1.12-8.el6 will be 安装
--> 完成依赖关系计算
依赖关系解决
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软件包 架构 版本 仓库 大小
=================================================================================================================================================================================
正在安装:
wget i686 1.12-8.el6 base 483 k
事务概要
=================================================================================================================================================================================
Install 1 Package(s)
总下载量：483 k
Installed size: 1.8 M
确定吗？[y/N]：y
下载软件包：
wget-1.12-8.el6.i686.rpm | 483 kB 00:00
运行 rpm_check_debug
执行事务测试
事务测试成功
执行事务
正在安装 : wget-1.12-8.el6.i686 1/1
Verifying : wget-1.12-8.el6.i686 1/1
已安装:
wget.i686 0:1.12-8.el6
完毕！
二、下载repel
CentOS6.8_32位epel下载地址：https://mirrors.tuna.tsinghua.edu.cn/epel/6/i386/epel-release-6-8.noarch.rpm
CentOS6.8_64位epel下载地址：https://mirrors.tuna.tsinghua.edu.cn/epel/6Server/x86_64/epel-release-6-8.noarch.rpm
[root@bogon zhi]# wget https://mirrors.tuna.tsinghua.edu.cn/epel/6/i386/epel-release-6-8.noarch.rpm --2016-12-06 01:44:43-- https://mirrors.tuna.tsinghua.edu.cn/epel/6/i386/epel-release-6-8.noarch.rpm 正在解析主机 mirrors.tuna.tsinghua.edu.cn... 166.111.206.63, 2402:f000:1:416:166:111:206:63 正在连接 mirrors.tuna.tsinghua.edu.cn|166.111.206.63|:443... 已连接。 已发出 HTTP 请求，正在等待回应... 200 OK 长度：14540 (14K) [application/x-redhat-package-manager] 正在保存至: “epel-release-6-8.noarch.rpm.1” 100%[=======================================================================================================================================>] 14,540 --.-K/s in 0s 2016-12-06 01:44:43 (262 MB/s) - 已保存 “epel-release-6-8.noarch.rpm.1” [14540/14540]) [root@bogon zhi]# ls Desktop Documents Downloads epel-release-6-8.noarch.rpm epel-release-6-8.noarch.rpm.1 Music Pictures Public Templates Videos
三、安装epel
[root@bogon zhi]# rpm -ivh epel-release-6-8.noarch.rpm #安装下载好的epel rpm包 Preparing... ########################################### [100%] package epel-release-6-8.noarch is already installed [root@bogon zhi]# rpm -e epel-release-6-8.noarch.rpm error: package epel-release-6-8.noarch.rpm is not installed [root@bogon zhi]# rpm -e epel error: package epel is not installed [root@bogon zhi]# rpm -qa |grep epel epel-release-6-8.noarch [root@bogon zhi]# rpm -e epel-release-6-8.noarch [root@bogon zhi]# rpm -ivh epel-release-6-8.noarch.rpm Preparing... ########################################### [100%] 1:epel-release ########################################### [100%] [root@bogon zhi]# rpm -qa |grep epel #安装成功 epel-release-6-8.noarch [root@bogon zhi]# ll /etc/yum.repos.d/ #查看额外源 总用量 32 -rw-r--r--. 1 root root 1991 5月 19 2016 CentOS-Base.repo -rw-r--r--. 1 root root 647 5月 19 2016 CentOS-Debuginfo.repo -rw-r--r--. 1 root root 289 5月 19 2016 CentOS-fasttrack.repo -rw-r--r--. 1 root root 630 5月 19 2016 CentOS-Media.repo -rw-r--r--. 1 root root 6259 5月 19 2016 CentOS-Vault.repo -rw-r--r--. 1 root root 957 11月 5 2012 epel.repo -rw-r--r--. 1 root root 1056 11月 5 2012 epel-testing.repo [root@bogon zhi]# cat /etc/yum.repos.d/epel.repo [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 [epel-debuginfo] name=Extra Packages for Enterprise Linux 6 - $basearch - Debug #baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch/debug mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-6&arch=$basearch failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 gpgcheck=1 [epel-source] name=Extra Packages for Enterprise Linux 6 - $basearch - Source #baseurl=http://download.fedoraproject.org/pub/epel/6/SRPMS mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-6&arch=$basearch failovermethod=priority enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 gpgcheck=1