将Centos的yum源更换为国内的阿里云源

阿里云Linux安装软件镜像源

阿里云是最近新出的一个镜像源。得益与阿里云的高速发展,这么大的需求,肯定会推出自己的镜像源。

阿里云Linux安装镜像源地址:http://mirrors.aliyun.com/
CentOS系统更换软件安装源

第一步:备份你的原镜像文件,以免出错后可以恢复。

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

第二步:下载新的CentOS-Base.repo 到/etc/yum.repos.d/

CentOS 5
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo


CentOS 7
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo



第三步:运行yum makecache生成缓存
yum clean all
yum makecache



下面是示例操作:



[root@localhost yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

--2016-11-16 20:13:26--  http://mirrors.aliyun.com/repo/Centos-7.repo
Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 112.124.140.210, 115.28.122.210
Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|112.124.140.210|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2573 (2.5K) [application/octet-stream]
Saving to: ‘/etc/yum.repos.d/CentOS-Base.repo’

100%[=============================================================================================>] 2,573       --.-K/s   in 0s     

2016-11-16 20:13:26 (10.9 MB/s) - ‘/etc/yum.repos.d/CentOS-Base.repo’ saved [2573/2573]

[root@localhost yum.repos.d]# ll
total 32
-rw-r--r--. 1 root root 2573 5月  15 2015 CentOS-Base.repo
-rw-r--r--. 1 root root 1664 12月  9 2015 CentOS-Base.repo.bak
-rw-r--r--. 1 root root 1309 12月  9 2015 CentOS-CR.repo
-rw-r--r--. 1 root root  649 12月  9 2015 CentOS-Debuginfo.repo
-rw-r--r--. 1 root root  290 12月  9 2015 CentOS-fasttrack.repo
-rw-r--r--. 1 root root  630 12月  9 2015 CentOS-Media.repo
-rw-r--r--. 1 root root 1331 12月  9 2015 CentOS-Sources.repo
-rw-r--r--. 1 root root 1952 12月  9 2015 CentOS-Vault.repo

[root@localhost yum.repos.d]# yum clean all

Loaded plugins: fastestmirror, langpacks
Cleaning repos: base extras updates
Cleaning up everything
Cleaning up list of fastest mirrors

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

Loaded plugins: fastestmirror, langpacks

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转载自angie.iteye.com/blog/2338422