Ubuntu之apt-get系列--解决The following signatures couldn‘t be verified because the public key is not avai

叁歲伎倆 2023-09-23 18:07 37阅读 0赞

原文网址 ：[Ubuntu之apt-get系列--解决The following signatures couldn‘t be verified because the public key is not avai\_IT利刃出鞘的博客-CSDN博客][Ubuntu_apt-get_--_The following signatures couldn_t be verified because the public key is not avai_IT_-CSDN]

## 简介 ##

本文介绍用Ubuntu的apt-get update命令时提示签名无法认证的问题。

## 问题描述 ##

在Ubuntu下执行sudo apt-get update时出现了如下报错：

> The following signatures couldn't be verified because the public key is not available: NO\_PUBKEY A7813D884I98HR43  
> Reading package lists... Done  
> W: GPG error: https://download.docker.com/linux/ubuntu bionic InRelease: The following signatures couldn't be verified because the public key is not available: NO\_PUBKEY A7813D884I98HR43  
> E: The repository 'https://download.docker.com/linux/ubuntu bionic InRelease' is not signed.  
> N: Updating from such a repository can't be done securely, and is therefore disabled by default.  
> N: See apt-secure(8) manpage for repository creation and user configuration details.

## 原因分析 ##

此服务器缺少这个公钥。

## 解决方案 ##

将此公钥添加到本台服务器即可，命令如下（此命令大概要执行十几秒）：

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A7813D884I98HR43

[Ubuntu_apt-get_--_The following signatures couldn_t be verified because the public key is not avai_IT_-CSDN]: https://knife.blog.csdn.net/article/details/128241740