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Error: Failed to download metadata for repo ‘AppStream‘
问题描述使用yum安装时出现如下错误:Errors during downloading metadata for repository 'AppStream':- Status code: 404 for http://mirrors.cloud.aliyuncs.com/centos/8/AppStream/x86_64/os/repodata/repomd.xml (IP: 100.100.
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问题描述
使用yum安装时出现如下错误:
Errors during downloading metadata for repository 'AppStream':
- Status code: 404 for http://mirrors.cloud.aliyuncs.com/centos/8/AppStream/x86_64/os/repodata/repomd.xml (IP: 100.100.2.148)
Error: Failed to download metadata for repo 'AppStream': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
问题分析
阿里云解释:centos8官方源已下线,建议切换centos-vault源
解决方法
1.删除AppStream源
rm -f /etc/yum.repos.d/CentOS-AppStream.repo
2.取消并备份旧yum源(可直接删除)
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
3.下载vault源
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
4.清除yum缓存
yum clean all
5.生成新缓存
yum makecache
附加
如果出现 Couldn't resolve host 'mirrors.cloud.aliyuncs.com' ,非阿里云服务器无法访问其内网域名,需要作替换,eg:
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
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