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无法更改服务器 - 无法下载存储库信息

tag-icon • tag-icon apt package-management updates ppa repository
无法更改服务器 - 无法下载存储库信息

没有 APT 命令对我有用。

根据这个网站上的一些帖子，解决方案是更换我的服务器。所以我尝试在设置/软件中更改它并选择最佳服务器。

但是，下载缓存和其他内容后，我收到此错误消息

Failed to download repository information. Check your Internet connection.

但我的连接没有问题。细节我有：

W:Target Packages (Packages) is configured multiple times in /etc/apt/sources.list.d/arc-theme.list:1 and /etc/apt/sources.list.d/arc-theme.list:2,
W:Target Translations (en) is configured multiple times in /etc/apt/sources.list.d/arc-theme.list:1 and /etc/apt/sources.list.d/arc-theme.list:2,
W:GPG error: htps://repo.skype.com /deb stable InRelease:
 The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1F3045A5DF7587C3,
W:The repository 'htps://repo.skype.com/deb stable InRelease' is not signed.
W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
W:An error occurred during the signature verification. The repository is not updated and the previous index files will be used. 
GPG error: htp://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04  Release:
 The following signatures were invalid: KEYEXPIRED 1496576244, 
W:The repository 'htp://ppa.launchpad.net/cdekter/ppa/ubuntu xenial Release' does not have a Release file.
W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
W:Failed to fetch htp://download.opensuse.org/repositories/home:/Horst3180/xUbuntu_16.04/Release.gpg  The following signatures were invalid: KEYEXPIRED 1496576244,
E:Failed to fetch http://ubnt-archive.xfree.com.ar/ubuntu/dists/xenial-updates/universe/i18n/Translation-en.xz  Hash Sum mismatch, 
E:Failed to fetch http://ppa.launchpad.net/cdekter/ppa/ubuntu/dists/xenial/main/binary-amd64/Packages  404  Not Found
W:Some index files failed to download. They have been ignored, or old ones used instead.

答案1

您的存储库似乎相当混乱。难怪 APT 无法正常工作。我不确定您对所有非标准存储库和 PPA 的跟踪有多好，但您缺少大多数证书，因此系统无法工作。

我想您已经意识到该命令正在为工作apt update奠定基础。正在将您的系统状态与存储库的系统状态进行比较，并在下载任何安装文件之前更新您的本地存储库信息。apt upgradeapt installapt update

这与配置文件一起工作

 etc/apt/...

主要文件是

 etc/apt/sources.list

您有一个可选目录

 etc/apt/sources.list.d/..

看起来真是太混乱了。

我的建议是备份该目录，然后删除/etc/apt/sources.list.d文件夹的内容并替换原始内容sources.list（您肯定备份了？如果没有，请参见如何恢复默认存储库？/etc/apt/sources.list或者从 Ubuntu 安装盘获取并将其复制到您已安装的系统上）。然后重试。

修复存储库后，该过程

sudo apt update
sudo apt upgrade
sudo apt install <whatever you want>

应该可以再次工作。

如果是这样，我建议将您的替代存储库包含到sources.list文件中，然后逐步使用 apt upgrade 检查是否有任何缺失。您可能仍拥有的 PPA 密钥可以复制到目录中/etc/apt/trusted.gpg.d。

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