[linux]Error: failure: repodata/repomd.xml from fedora: [Errno 256] No more mirrors to try.

本文详细介绍如何在CentOS系统中更换软件安装源,包括备份原镜像文件、下载新的CentOS-Base.repo文件及配置使其生效的方法,并指导如何通过运行命令生成缓存。

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CentOS系统更换软件安装源
第一步:备份你的原镜像文件,以免出错后可以恢复。

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

第二步: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

更改CentOS-Media.repo(epel.repo)使其为不生效:

enabled=0

第三步:运行yum makecache生成缓存

yum clean all
yum makecache

[root@iZ2zeddv2x94139qgzr55aZ /]# sudo yum clean all && sudo yum makecache 已加载插件:fastestmirror Repository centos-sclo-rh is listed more than once in the configuration Repository centos-sclo-sclo is listed more than once in the configuration 正在清理软件源: base centos-sclo-rh centos-sclo-sclo docker-ce-stable epel extras updates Cleaning up list of fastest mirrors Other repos take up 1.6 M of disk space (use --verbose for details) 已加载插件:fastestmirror Repository centos-sclo-rh is listed more than once in the configuration Repository centos-sclo-sclo is listed more than once in the configuration Determining fastest mirrors base | 3.6 kB 00:00:00 http://mirror.centos.org/centos/7/sclo/aarch64/rh/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found 正在尝试其它镜像。 To address this issue please refer to the below wiki article https://wiki.centos.org/yum-errors If above article doesn't help to resolve this issue please use https://bugs.centos.org/. One of the configured repositories failed (CentOS-7 - SCLo rh), 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=centos-sclo-rh ... 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 centos-sclo-rh or subscription-manager repos --disable=centos-sclo-rh 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=centos-sclo-rh.skip_if_unavailable=true failure: repodata/repomd.xml from centos-sclo-rh: [Errno 256] No more mirrors to try. http://mirror.centos.org/centos/7/sclo/aarch64/rh/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
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07-16
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