Centos 修改 yum 源为阿里云

参考

https://serverfault.com/questions/1161816/mirrorlist-centos-org-no-longer-resolve

修改 Centos 的 yum 源为阿里云

去阿里云 yum 镜像源官网:

https://developer.aliyun.com/mirror/

选择自己对应的操作系统,这里以 centos7 演示:

先备份原 yum 配置文件:

shell 复制代码
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

下载了阿里云提供的 CentOS 7 的 Yum 源配置文件,并将其覆盖到系统中的 /etc/yum.repos.d/CentOS-Base.repo 文件:

shell 复制代码
wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

# 或使用 curl 下载文件
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

清除旧缓存:

shell 复制代码
sudo yum clean all

生成新缓存:

shell 复制代码
sudo yum makecache

检验新配置是否生效:

shell 复制代码
yum repolist

提示不能解析 mirrorlist.centos.org

shell 复制代码
Could not retrieve mirrorlist http://mirrorlist.centos.org?arch=x86_64&release=7&repo=sclo-rh error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误"


 One of the configured repositories failed (未知),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Run the command with the repository temporarily disabled
            yum --disablerepo=<repoid> ...

     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:

            yum-config-manager --disable <repoid>
        or
            subscription-manager repos --disable=<repoid>

     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

执行如下命令:

shell 复制代码
sudo sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/CentOS-*.repo
sudo sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/CentOS-*.repo
sudo sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/CentOS-*.repo
相关推荐
段ヤシ.1 小时前
银河麒麟(内核CentOS8)安装rbenv、ruby2.6.5和rails5.2.6
linux·centos·银河麒麟·rbenv·ruby2.6.5·rails 5.2.6
深夜情感老师3 小时前
centos离线安装ssh
linux·centos·ssh
我的作业错错错3 小时前
搭建私人网站
服务器·阿里云·私人网站
朴拙数科5 小时前
艺术字体AI生成阿里云WordArt锦书、通义万相、SiliconFlow、Pillow+OpenCV本地生成艺术字体
人工智能·阿里云·pillow
中云时代-防御可测试-小余5 小时前
高防IP是如何防护DDoS攻击和CC攻击的
运维·服务器·tcp/ip·安全·阿里云·ddos·宽度优先
菜鸟射手7 小时前
QT creater和vs2017文件路径问题
linux·c++·windows·qt
@Aurora.8 小时前
【项目日记(三)】
linux·服务器·网络
白总Server8 小时前
Nginx 中间件
大数据·linux·运维·服务器·nginx·bash·web
望获linux9 小时前
实时操作系统在服务型机器人中的关键作用
linux·机器人·操作系统·开源软件·rtos·具身智能
哈哈幸运10 小时前
Linux Sed 深度解析:从日志清洗到 K8s 等12个高频场景
linux·运维·编辑器·sed