Linux “如何修复”；apt get update时签名无效；错误？

每当我尝试

sudo apt get update

时，都会出现以下错误：

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://packages.linuxmint.com rafaela Release: The following signatures were invalid: BADSIG 3EE67F3D0FF405B2 Clement Lefebvre (Linux Mint Package Repository v1) <root@linuxmint.com>

W: GPG error: http://extra.linuxmint.com rafaela Release: The following signatures were invalid: BADSIG 3EE67F3D0FF405B2 Clement Lefebvre (Linux Mint Package Repository v1) <root@linuxmint.com>
W: Failed to fetch http://packages.linuxmint.com/dists/rafaela/Release  

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release  Unable to find expected entry 'restricted/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/main/binary-amd64/Packages  Hash Sum mismatch

W: Some index files failed to download. They have been ignored, or old ones used instead.

你知道我还能做些什么来解决这个问题吗

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p、 这一切都是在尝试安装nodejs和npm时开始的。

这对我在Linux Mint 17上很有效：

sudorm-r/var/lib/apt/list

sudo mkdir-p/var/lib/apt/lists/partial

苏多容易变得干净

sudoapt获得更新

sudo apt密钥列表| grep已过期

从该结果中获取要使用的密钥：
pub 4096R/BE1DB1F12011-03-29[到期日期：2014-03-28]

sudo apt key adv--recv key--keyserver keys.gnupg.net BE1DB1F1

sudoapt获得更新

解决方案部分来自。

以修复

BADSIG

错误 它应该是

packages.linuxmint.com

而不是

extra.linuxmint.com

查找包含有问题主机的包列表文件：

grep -R extra.linuxmint.com /etc/apt/sources.list.d

更改任何匹配的行

仅供参考，我的一行代码是

/etc/apt/sources.list.d/official package repositories.list

，现在是：

deb http://extra.linuxmint.com rafaela main

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如果您仍然存在

哈希和不匹配

错误，请遵循social的步骤。

这没有列出NO-PUBKEY，而是抱怨

gpgv

命令失败。谢谢-我已更新了答案，以参考OP的BADSIG错误，并指向其他错误的现有答案。我得到了与rosa相同的eact错误（mint 17.3）我尝试了所有方法，包括删除键控和重新创建键控，没有任何帮助。。。。

deb http://extra.linuxmint.com rafaela main