centos6.4添加yum源

一、更换163源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo 
mv CentOS6-Base-163.repo CentOS-Base.repo
yum makecache
yum update

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二、添加epel源

1、安装yum优先级插件

yum install yum-priorities
#epel简介: https://fedoraproject.org/wiki/EPEL/zh-cn

rpm -Uvh http://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
#以上URL请按实际情况修改

2、查看是否安装成功

rpm -q epel-release

3、导入key

rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

4、修改/etc/yum.repos.d/epel.repo文件

#在[epel]最后添加一条属性 priority=11

vi /etc/yum.repos.d/epel.repo
意思是yum先去官方源查，官方没有再去epel的源找

5、重建缓存

yum makecache

重建缓存中遇到如下报错：

Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again

解决办法：

修改文件“/etc/yum.repos.d/epel.repo”， 将baseurl的注释取消， mirrorlist注释掉。即可