利用阿里云提供的镜像快速更换本地的yum源

打开网页：http://mirrors.aliyun.com/

从“

文件列表

”找到自己的系统：

Mirror	Last update	Help
CPAN	2015-07-15 15:36:50
CRAN	2015-07-16 05:11:52
CTAN	2015-07-12 03:51:20
apache	2015-07-16 02:06:40
archlinux	2015-07-16 00:51:24	help
centos	2015-07-16 06:20:51	help
cygwin	2015-07-16 02:00:05	help
debian	2015-07-16 08:07:31	help
debian-backports	2015-07-16 08:50:04	help
debian-cd	2015-07-15 01:05:05
debian-security	2015-07-16 08:30:55	help
deepin	2015-07-16 03:00:06	help
dotdeb	2015-07-16 01:52:20	help
epel	2015-07-16 07:18:55	help
fedora	2015-07-15 02:24:48	help
freebsd	2015-07-16 03:44:27	help
gentoo	2015-07-14 00:42:09	help
gentoo-portage	2015-07-16 04:04:06	help
gentoo-portage-prefix	2015-01-28 06:09:50
kali	2015-06-26 03:50:35
kali-security	2015-06-26 02:22:01
linux-kernel	2015-07-16 04:06:53
macports	2015-07-15 03:02:24
mariadb	2015-07-15 15:32:35
mongodb	2015-07-16 02:35:57
oldubuntu-releases	2015-07-16 02:30:08
opensuse	2015-07-15 13:29:03	help
packman	2015-06-03 02:26:11	help
pypi	2015-07-16 02:49:37	help
raspbian	2015-07-15 02:59:32	help
rpmfusion	2015-07-16 07:22:45
rubygems	2015-07-15 03:08:28	help
sabayonlinux	2015-07-14 01:04:50
scientificlinux	2015-07-15 12:20:55	help
ubuntu	2015-07-16 07:00:23	help
ubuntu-releases	2015-07-16 02:24:21
zabbix	2015-07-16 02:40:05

单击help进入(如我这里当今centos 的help)：

CentOS

1、备份

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

2、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

3、之后运行yum makecache生成缓存

根据上述的描述操作即可快速完成yum源更换。