​树莓派CENTOS的源更换后一直没有办法更新

树莓派CENTOS的源更换后一直没有办法更新


  • 备份系统镜像源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
  • 下载阿里镜像源,如果没有wget,使用yum install wget安装

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
  • 运行yum makecache生成缓存

yum makecache

报错,其实就是找不到XML文件的原因:

[root@centos-rpi3 yum.repos.d]# yum makecache
Loaded plugins: fastestmirror
http://mirrors.aliyun.com/centos/7/os/armhfp/repodata/repomd.xml: [Errno 14] HTTP Error 404 – Not Found
Trying other mirror.
To address this issue please refer to the below knowledge base article

解决方式:

编辑Centos-7.repo文件:

将:

http://mirrors.aliyuns.com/centos/$releasever/os/$basearch/

更改为:
http://mirrors.aliyuncs.com/centos/$releasever/os/x86_64/

存盘,重新执行

yum makecache

成功

  • 然后更新

yum update
  • 增加epal源

// 安装epel源yum install epel-release// 修改为阿里的epel源
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo// 安装yum源优先级管理工具
yum install -y yum-priorities// 添加优先级(数字越小优先级越高)
vim /etc/yum.repo.d/epel.repo
priority=88// 添加优先级(这个数要小于epel里的88即可)
vim /etc/yum.repo.d/Centos-7.repo
priority=6// 开启yum源优先级功能
vim /etc/yum/pluginconf.d/priorities.conf// 确保文件内容包含如下:
[main]  enabled=1
<wiz_tmp_tag id="wiz-table-range-border" contenteditable="false" style="display: none;">

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