centos更换yum国内源

第一章 更换步骤

找到centos7系统的yum源的位置,在centos中存放yum源配置文件的位置都是/etc/yum.repos.d,其他系统不知道.

cd /etc/yum.repos.d 

进入这个目录后,备份原来的文件(作用就是搞错了及时恢复)

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

备份完成后,就可以获取新的源了,注意在/etc/yum.repod.d这个文件夹不要出来

 wget -nc http://mirrors.aliyun.com/repo/Centos-7.repo #获取这个源文件
 
 mv Centos-7.repo /etc/yum.repos.d/CentOS-Base.repo  #重命名

到这里已经更换好源了,更新本地源即可!

# 全部清除
$ sudo yum clean all
# 更新列表
$ sudo yum list
# 缓存yum包信息到本机，提高搜索速度
$ sudo yum makecache

这里提供我自己服务器上用的源文件,你可以全复制以下文件,然后把之前的yum文件里面的情况,粘贴进去就行

# CentOS-Base.repo

# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#
 
[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
 
#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
        http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
        http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7

第二章 国内常用的镜像源

yum源	安装方法查看
网易163	http://mirrors.163.com/.help/centos.html
中科大	https://lug.ustc.edu.cn/wiki/mirrors/help/centos
阿里云	https://opsx.alibaba.com/mirror
清华大学	https://mirrors.tuna.tsinghua.edu.cn/help/centos
浙江大学	http://mirrors.zju.edu.cn
中国科技大学	http://mirrors.ustc.edu.cn/help/centos.html

	CentOS5	CentOS6	CentOS7
网易	http://mirrors.163.com/.help/CentOS5-Base-163.repo	http://mirrors.163.com/.help/CentOS6-Base-163.repo	http://mirrors.163.com/.help/CentOS7-Base-163.repo
阿里	http://mirrors.aliyun.com/repo/Centos-5.repo	http://mirrors.aliyun.com/repo/Centos-6.repo	http://mirrors.aliyun.com/repo/Centos-7.repo
中科大	https://lug.ustc.edu.cn/wiki/_export/code/mirrors/help/centos?codeblock=1	https://lug.ustc.edu.cn/wiki/_export/code/mirrors/help/centos?codeblock=2	https://lug.ustc.edu.cn/wiki/_export/code/mirrors/help/centos?codeblock=3
清华大学	https://mirrors.yangxingzhen.com/help/CentOS5-Base-tuna.repo	https://mirrors.yangxingzhen.com/help/CentOS6-Base-tuna.repo	https://mirrors.yangxingzhen.com/help/CentOS7-Base-tuna.repo
浙江大学		https://mirrors.yangxingzhen.com/help/CentOS6-Base-zju.repo	https://mirrors.yangxingzhen.com/help/CentOS7-Base-zju.repo
中国科技大学	https://mirrors.yangxingzhen.com/help/CentOS5-Base-ustc.repo	https://mirrors.yangxingzhen.com/help/CentOS6-Base-ustc.repo	https://mirrors.yangxingzhen.com/help/CentOS7-Base-ustc.repo