错误:为 repo ‘mirrors.aliyun.com_do’ 下载元数据失败 : Cannot download repomd.xml: Cannot download repodata/rep
安装docker过程中因为设置阿里云镜像报错错误:为 repo ‘mirrors.aliyun.com_do’ 下载元数据失败 : Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried解决方案:1、设置新的yum目录mkdir /etc/yum.repos.d2、 下载配
安装docker过程中因为设置阿里云镜像报错
错误:为 repo ‘mirrors.aliyun.com_do’ 下载元数据失败 : Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
解决方案:
1、设置新的yum目录
mkdir /etc/yum.repos.d
2、 下载配置(要区分自己的系统版本,不然肯定不通过)
CentOS 7
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
CentOS 8
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
3、清除文件并重建元数据缓存
yum clean all
yum makecache
4、最后更新软件包
自己选upgraede或者update
yum -y update
(升级所有包同时也升级软件和系统内核)
yum -y upgrade
(只升级所有包,不升级软件和系统内核 )
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