CentOS7 系統配置國內 yum 源和epel源

1.首先進入/etc/yum.repos.d/ 目錄下，新建一個repo_bak目錄，用於保存系統中原來的repo文件

[root@bogon ~]# cd /etc/yum.repos.d/
[root@bogon yum.repos.d]# mkdir repo_bak
[root@bogon yum.repos.d]# mv *.repo repo_bak/

2.在CentOS中配置使用網易和阿里的開源鏡像

到網易和阿里開源鏡像站點下載系統對應版本的repo文件

[root@bogon yum.repos.d]# wget http://mirrors.aliyun.com/repo/Centos-7.repo

[root@bogon yum.repos.d]# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

[root@bogon yum.repos.d]# ls
Centos-7.repo CentOS-Base-163.repo repo.bak
或者手動下載repo文件並上傳到/etc/yum.repos.d/目錄

網易開源鏡像站：http://mirrors.163.com/.help/centos.html
阿里開源鏡像站：https://opsx.alibaba.com/mirror?lang=zh-cn

3.清除系統yum緩存並生成新的yum緩存

[root@bogon yum.repos.d]# ls # 列出/etc/yum.repos.d/目錄下的文件
Centos-7.repo CentOS-Base-163.repo repo.bak

[root@bogon yum.repos.d]# yum clean all # 清除系統所有的yum緩存
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Cleaning repos: base extras updates
Cleaning up everything
Cleaning up list of fastest mirrors

[root@bogon yum.repos.d]# yum makecache # 生成yum緩存
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
base | 3.6 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
(1/12): base/7/x86_64/filelists_db | 6.7 MB 00:00:02
(2/12): base/7/x86_64/group_gz | 156 kB 00:00:02
(3/12): base/7/x86_64/other_db | 2.5 MB 00:00:01
(4/12): base/7/x86_64/primary_db | 5.7 MB 00:00:02
(5/12): extras/7/x86_64/prestodelta | 51 kB 00:00:01
(6/12): extras/7/x86_64/filelists_db | 494 kB 00:00:02
(7/12): extras/7/x86_64/other_db | 86 kB 00:00:00
(8/12): extras/7/x86_64/primary_db | 130 kB 00:00:01
(9/12): updates/7/x86_64/prestodelta | 406 kB 00:00:01
(10/12): updates/7/x86_64/filelists_db | 2.1 MB 00:00:01
(11/12): updates/7/x86_64/other_db | 354 kB 00:00:00
(12/12): updates/7/x86_64/primary_db | 3.6 MB 00:00:01
Determining fastest mirrors
Metadata Cache Created

4.安裝epel源

[root@bogon yum.repos.d]# yum list | grep epel-release
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
epel-release.noarch 7-9 extras

[root@bogon yum.repos.d]# yum install -y epel-release
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Loading mirror speeds from cached hostfile
Resolving Dependencies
–> Running transaction check
—> Package epel-release.noarch 0:7-9 will be installed
–> Finished Dependency Resolution

Dependencies Resolved

Package Arch Version Repository Size

Installing:
epel-release noarch 7-9 extras 14 k

Transaction Summary

Install 1 Package

Total download size: 14 k
Installed size: 24 k
Downloading packages:
epel-release-7-9.noarch.rpm | 14 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : epel-release-7-9.noarch 1/1
Verifying : epel-release-7-9.noarch 1/1

Installed:
epel-release.noarch 0:7-9

Complete!
[root@bogon yum.repos.d]# ls # epel源安裝成功，比原來多了一個epel.repo和epel-testing.repo文件
Centos-7.repo CentOS-Base-163.repo epel.repo epel-testing.repo repo.bak

5.使用阿里開源鏡像提供的epel源

[root@bogon yum.repos.d]# wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo # 下載阿里開源鏡像的epel源文件
–2018-03-08 20:22:14-- http://mirrors.aliyun.com/repo/epel-7.repo
Resolving mirrors.aliyun.com (mirrors.aliyun.com)… 183.2.199.237, 113.96.109.95, 113.96.109.93, …
Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|183.2.199.237|:80… connected.
HTTP request sent, awaiting response… 200 OK
Length: 1084 (1.1K) [application/octet-stream]
Saving to: ‘/etc/yum.repos.d/epel-7.repo’

100%[==============================================>] 1,084 --.-K/s in 0s

2018-03-08 20:22:14 (130 MB/s) - ‘/etc/yum.repos.d/epel-7.repo’ saved [1084/1084]

[root@bogon yum.repos.d]# ls
CentOS7-Base-163.repo Centos-7.repo epel-7.repo epel.repo epel-testing.repo repo_bak

6.再次清除系統yum緩存，並重新生成新的yum緩存

[root@bogon yum.repos.d]# yum clean all
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository epel is listed more than once in the configuration
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
Cleaning repos: base epel extras updates
Cleaning up everything
Cleaning up list of fastest mirrors

[root@bogon yum.repos.d]# yum makecache
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository epel is listed more than once in the configuration
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
base | 3.6 kB 00:00:00
epel | 4.7 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
(1/18): base/7/x86_64/group_gz | 156 kB 00:00:01
(2/18): base/7/x86_64/filelists_db | 6.7 MB 00:00:07
(3/18): base/7/x86_64/primary_db | 5.7 MB 00:00:06
(4/18): epel/x86_64/group_gz | 266 kB 00:00:01
(5/18): epel/x86_64/updateinfo | 899 kB 00:00:02
(6/18): epel/x86_64/prestodelta | 7.1 kB 00:00:00
(7/18): base/7/x86_64/other_db | 2.5 MB 00:00:05
(8/18): epel/x86_64/primary_db | 6.3 MB 00:00:04
(9/18): extras/7/x86_64/filelists_db | 636 kB 00:00:00
(10/18): extras/7/x86_64/primary_db | 166 kB 00:00:00
(11/18): extras/7/x86_64/other_db | 108 kB 00:00:00
(12/18): extras/7/x86_64/prestodelta | 102 kB 00:00:01
(13/18): epel/x86_64/other_db | 3.0 MB 00:00:01
(14/18): epel/x86_64/filelists_db | 10 MB 00:00:09
(15/18): updates/7/x86_64/filelists_db | 3.5 MB 00:00:02
(16/18): updates/7/x86_64/prestodelta | 771 kB 00:00:02
(17/18): updates/7/x86_64/other_db | 621 kB 00:00:00
(18/18): updates/7/x86_64/primary_db | 6.0 MB 00:00:03
Determining fastest mirrors

• epel: mirrors.aliyun.com
  Metadata Cache Created
  
  

7.查看系統可用的yum源和所有的yum源

[root@bogon yum.repos.d]# yum repolist enabled
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository epel is listed more than once in the configuration
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
Loading mirror speeds from cached hostfile

• epel: mirrors.aliyun.com
  repo id repo name status
  base/7/x86_64 CentOS-7 - Base - 163.com 9,591
  epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 12,382
  extras/7/x86_64 CentOS-7 - Extras - 163.com 390
  updates/7/x86_64 CentOS-7 - Updates - 163.com 1,941
  repolist: 24,304

[root@bogon yum.repos.d]# yum repolist all
Loaded plugins: fastestmirror, langpacks
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository epel is listed more than once in the configuration
Repository epel-debuginfo is listed more than once in the configuration
Repository epel-source is listed more than once in the configuration
Loading mirror speeds from cached hostfile

• epel: mirrors.aliyun.com
  repo id repo name status
  base/7/x86_64 CentOS-7 - Base - 163.com enabled: 9,591
  centosplus/7/x86_64 CentOS-7 - Plus - 163.com disabled
  contrib/7/x86_64 CentOS-7 - Contrib - mirrors.aliyun.com disabled
  epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 enabled: 12,382
  epel-debuginfo/x86_64 Extra Packages for Enterprise Linux 7 - x86_64 - Debug disabled
  epel-source Extra Packages for Enterprise Linux 7 - x86_64 - Source disabled
  epel-testing/x86_64 Extra Packages for Enterprise Linux 7 - Testing - x86_64 disabled
  epel-testing-debuginfo/x86_64 Extra Packages for Enterprise Linux 7 - Testing - x86_64 - Debug disabled
  epel-testing-source/x86_64 Extra Packages for Enterprise Linux 7 - Testing - x86_64 - Source disabled
  extras/7/x86_64 CentOS-7 - Extras - 163.com enabled: 390
  updates/7/x86_64 CentOS-7 - Updates - 163.com enabled: 1,941
  repolist: 24,304

轉發：https://www.cnblogs.com/renpingsheng/p/7845096.html