无法解决GPG错误

我跑sudo apt-get update了，最后我出现了以下错误：

Fetched 14,3 kB in 54s (264 B/s)
Reading package lists... Done
W: GPG error: http://archive.canonical.com saucy 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://extras.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A040830F7FAC5991
W: GPG error: http://archive.getdeb.net trusty-getdeb InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8A515F046D7E7CF
W: GPG error: https://private-ppa.launchpad.net trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99
W: GPG error: http://archive.ubuntu.com trusty 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://archive.ubuntu.com trusty-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://archive.ubuntu.com trusty-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://archive.ubuntu.com trusty-security 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://archive.ubuntu.com trusty-proposed Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32

看来我缺少的键是：

• 40976EAF437D05B5
• 3B4FE6ACC0B21F32
• 16126D3A3E5C1192
• A040830F7FAC5991
• A8A515F046D7E7CF
• E131728675254D99

我看到大多数答案都说要运行：

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys [MISSING KEY]

我跑了：

$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.2LrTHdOU28 --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d/amandeepgrewal-notifyosdconfig.gpg --keyring /etc/apt/trusted.gpg.d/apandada1-typhoon.gpg --keyring /etc/apt/trusted.gpg.d/brightbox-ppa.gpg --keyring /etc/apt/trusted.gpg.d/chris-lea-node_js-devel.gpg --keyring /etc/apt/trusted.gpg.d/chris-lea-node_js.gpg --keyring /etc/apt/trusted.gpg.d/colingille-freshlight.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-squeeze-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-squeeze-stable.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-wheezy-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-wheezy-stable.gpg --keyring /etc/apt/trusted.gpg.d/diesch-testing.gpg --keyring /etc/apt/trusted.gpg.d/duh-golang.gpg --keyring /etc/apt/trusted.gpg.d/ferramroberto-gsharkdown.gpg --keyring /etc/apt/trusted.gpg.d/finalterm-daily.gpg --keyring /etc/apt/trusted.gpg.d/fkrull-deadsnakes.gpg --keyring /etc/apt/trusted.gpg.d/fossfreedom-byzanz.gpg --keyring /etc/apt/trusted.gpg.d/fossfreedom-packagefixes.gpg --keyring /etc/apt/trusted.gpg.d/gophers-go.gpg --keyring /etc/apt/trusted.gpg.d/leolik-leolik.gpg --keyring /etc/apt/trusted.gpg.d/linrunner-tlp.gpg --keyring /etc/apt/trusted.gpg.d/mactel-support-ppa.gpg --keyring /etc/apt/trusted.gpg.d/me-davidsansome-clementine.gpg --keyring /etc/apt/trusted.gpg.d/michael-gruz-canon-trunk.gpg --keyring /etc/apt/trusted.gpg.d/michael-gruz-canon.gpg --keyring /etc/apt/trusted.gpg.d/moka-stable.gpg --keyring /etc/apt/trusted.gpg.d/numix-ppa.gpg --keyring /etc/apt/trusted.gpg.d/nuvola-player-builders-beta.gpg --keyring /etc/apt/trusted.gpg.d/otto-kesselgulasch-gimp-edge.gpg --keyring /etc/apt/trusted.gpg.d/scopes-packagers-ppa.gpg --keyring /etc/apt/trusted.gpg.d/shutter-ppa.gpg --keyring /etc/apt/trusted.gpg.d/steam.gpg --keyring /etc/apt/trusted.gpg.d/sukso96100-budgie-desktop.gpg --keyring /etc/apt/trusted.gpg.d/ubuntu-sdk-team-ppa.gpg --keyring /etc/apt/trusted.gpg.d/ubuntu-x-swat-x-updates.gpg --keyring /etc/apt/trusted.gpg.d/vajdics-netbeans-installer.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-atom.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-brackets.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-java.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-sublime-text-3.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-themes.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team-y-ppa-manager.gpg --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
gpg: keyblock resource `/etc/apt/trusted.gpg.d/webupd8team-sublime-text-3.gpg': resource limit
gpg: keyblock resource `/etc/apt/trusted.gpg.d/webupd8team-themes.gpg': resource limit
gpg: keyblock resource `/etc/apt/trusted.gpg.d/webupd8team-y-ppa-manager.gpg': resource limit
gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1

我可以看到unchanged: 1。
我也尝试使用y-ppa-manager那也没有解决问题。

是什么导致这些错误，我该如何解决？

对我来说，这似乎是以下错误。

怎么修

来自在错误报告中修复它的用户：

对我有用的解决方案是清空/etc/apt/trusted.gpg.d，运行apt-get update，然后使用apt-key手动将其阻塞的每个密钥添加到主/etc/apt/trusted.gpg密钥环中。如上所述的副词。

因此，根据您的情况，您应该执行以下操作（免责声明：无法对其进行测试）：

sudo mv /etc/apt/trusted.gpg.d/ /etc/apt/trusted.gpg.d.backup
sudo mkdir /etc/apt/trusted.gpg.d
sudo chmod 755 /etc/apt/trusted.gpg.d

然后，对于每个键，您需要：

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

在其中您用所需键的哈希值替换哈希值。正如IonicăBizău所指出的，可以添加多个键，并以空格分隔。

为什么出现

显然，gpg只能处理有限数量的密钥环，而您的安装需要更多。可能是由于具有许多备用数据包源引起的。

同样，从错误报告中：

I asked about the "resource limit" message on the gnupg-users mailing list...
Based on Werner Koch's (the dev) answer...
...the secure apt related programs might be making gpg use more than the maximum number of keyrings that it can handle

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys [MISSING KEY] 为我工作。

$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A040830F7FAC5991
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.cmBVPKdUNm --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys A040830F7FAC5991
gpg: requesting key 7FAC5991 from hkp server keyserver.ubuntu.com
gpg: key 7FAC5991: public key "Google, Inc. Linux Package Signing Key <linux-packages-keymaster@google.com>" imported
gpg: Total number processed: 1
gpg:               imported: 1