【阿里云镜像】更改阿里巴巴开源镜像站镜像之——CentOS镜像
前言
阿里巴巴 OPSX 开源镜像站，提供 CentOS、Debian、Ubuntu、 Fedora、Arch Linux、Gentoo、openSUSE、Scientific Linux 等主流发行版的软件源镜像。为阿里云和互联网用户提供免费高速的一站式镜像服务一、什么是阿里巴巴开源镜像站 【【阿里云镜像】更改阿里巴巴开源镜像站镜像之——CentOS镜像】镜像站官网：阿里巴巴镜像站链接
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二、更换阿里巴巴镜像源操作步骤 参考链接：CentOS镜像
CentOS，是基于 Red Hat Linux 提供的可自由使用源代码的企业级 Linux 发行版本；是一个稳定，可预测，可管理和可复制的免费企业级计算平台。镜像下载地址：
https://mirrors.aliyun.com/centos/
https://mirrors.aliyun.com/centos-vault/
1、备份自带的YUM源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
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2、下载新的 CentOS-Base.repo 到 /etc/yum.repos.d/ CentOS 7版本：
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/re...或者
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/re...
[root@centos yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
--2021-11-22 11:07:13--https://mirrors.aliyun.com/repo/Centos-7.repo
Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 61.162.46.214, 61.162.46.210, 61.162.46.208, ...
Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|61.162.46.214|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2523 (2.5K) [application/octet-stream]
Saving to: ‘/etc/yum.repos.d/CentOS-Base.repo’100%[==============================================================================>] 2,523--.-K/sin 0s2021-11-22 11:07:13 (122 MB/s) - ‘/etc/yum.repos.d/CentOS-Base.repo’ saved [2523/2523][root@centos yum.repos.d]# ll
total 40
drwxr-xr-x2 root root6 Nov 22 11:04 backup
-rw-r--r--1 root root 2523 Dec 262020 CentOS-Base.repo
-rw-r--r--. 1 root root 1664 Nov 232018 CentOS-Base.repo.backup
-rw-r--r--. 1 root root 1309 Nov 232018 CentOS-CR.repo
-rw-r--r--. 1 root root649 Nov 232018 CentOS-Debuginfo.repo
-rw-r--r--. 1 root root314 Nov 232018 CentOS-fasttrack.repo
-rw-r--r--. 1 root root630 Nov 232018 CentOS-Media.repo
-rw-r--r--1 root root69 Nov 20 07:55 centos.repo.backup
-rw-r--r--. 1 root root 1331 Nov 232018 CentOS-Sources.repo
-rw-r--r--. 1 root root 5701 Nov 232018 CentOS-Vault.repo
[root@centos yum.repos.d]#
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3、运行 yum makecache 生成缓存
yum makecache
[root@centos yum.repos.d]# yum makecache
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
base| 3.6 kB00:00:00
extras| 2.9 kB00:00:00
updates| 2.9 kB00:00:00
(1/6): extras/7/x86_64/filelists_db| 259 kB00:00:01
(2/6): extras/7/x86_64/other_db| 145 kB00:00:02
(3/6): base/7/x86_64/other_db| 2.6 MB00:00:02
(4/6): updates/7/x86_64/other_db| 829 kB00:00:01
(5/6): base/7/x86_64/filelists_db| 7.2 MB00:00:06
(6/6): updates/7/x86_64/filelists_db| 6.6 MB00:00:08
Metadata Cache Created
[root@centos yum.repos.d]#
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4、查看更换的阿里云镜像的仓库是否生效。
yum clean all
yum repolist
[root@centos yum.repos.d]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: base extras updates
Cleaning up list of fastest mirrors
Other repos take up 41 M of disk space (use --verbose for details)
[root@centos yum.repos.d]# yum repolist
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
base| 3.6 kB00:00:00
extras| 2.9 kB00:00:00
updates| 2.9 kB00:00:00
(1/4): base/7/x86_64/group_gz| 153 kB00:00:00
(2/4): extras/7/x86_64/primary_db| 243 kB00:00:00
(3/4): updates/7/x86_64/primary_db|12 MB00:00:02
(4/4): base/7/x86_64/primary_db| 6.1 MB00:00:03
repo idrepo namestatus
base/7/x86_64CentOS-7 - Base - mirrors.aliyun.com10,072
extras/7/x86_64CentOS-7 - Extras - mirrors.aliyun.com500
updates/7/x86_64CentOS-7 - Updates - mirrors.aliyun.com2,963
repolist: 13,535
[root@centos yum.repos.d]#更换阿里云镜像站——CentOS镜像生效。
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