如何在更新程序中修复GPG [重复]

Modified on: Sat, 09 Jun 2018 19:11:23 +0800
    

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我之前已经问过这个问题,但它被关闭为“重复”。我可以向你保证,我的场景是原创的,因为它没有提到第三方PPA。我有系统更新的GPG问题。它说没有可用的公钥,我也被警告我的更新信息已经过时。这是终端文本:

W: A error occurred during the signature verification.
The repository is not updated and the previous index files will be used. GPG error:http://extras.ubuntu.com quantal Release: 
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192

W: GPG error: http:// archive.canonical.com quantal Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http:// us.archive.ubuntu.com quantal Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http:// us.archive.ubuntu.com quantal-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http:// us.archive.ubuntu.com quantal-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: GPG error: http:// us.archive.ubuntu.com quantal-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
W: Failed to fetch http:// extras.ubuntu.com/ubuntu/dists/quantal/Release

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

我在网址中添加了空格,因为每个问题不允许新用户使用两个以上的超链接。

请不要将其作为副本关闭。它不是指第三方PPA,它是指Canonical发布的标准更新包。

最佳答案

在终端中运行以下命令:

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 40976EAF437D05B5
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 3B4FE6ACC0B21F32

从Ubuntu GPG密钥服务器下载缺少的GPG密钥(如原始错误消息中所述)。

作者:Thomas Ward,lub

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