apt-get update更新源报错

问题描述

执行apt-get update命令更新源时报如下错误信息：

Err:1 https://repo.huaweicloud.com/docker-ce/linux/ubuntu focal InRelease  Temporary failure resolving 'repo.huaweicloud.com'
Err:2 https://mirrors.huaweicloud.com/ubuntu-ports focal InRelease  Temporary failure resolving 'mirrors.huaweicloud.com'
Err:3 https://mirrors.huaweicloud.com/ubuntu-ports focal-updates InRelease Temporary failure resolving 'mirrors.huaweicloud.com'
Err:4 https://mirrors.huaweicloud.com/ubuntu-ports focal-security InRelease Temporary failure resolving 'mirrors.huaweicloud.com'
Err:5 https://mirrors.huaweicloud.com/docker-ce/linux/ubuntu focal InRelease Temporary failure resolving 'mirrors.huaweicloud.com'
Reading package lists... Done

可能原因

软件包认证失败。

解决方法

执行如下命令忽略软件包认证。

apt-get update --allow-unauthenticated