「Sudo apt-fast update」の実行中に「GPGエラー」

Question

ある日、以下のようなエラーメッセージを見つけました。何が起こったのか、修正を確認するための解決策は何なのかわかりません。あなたからの助けが必要です。

............. Err http://ppa.launchpad.net saucy/main AMD64 Packages 404 Not Found Err http://ppa.launchpad.net saucy/main i386 Packages 404 Not Found Ign http://ppa.launchpad.net saucy/main Translation-en_US Ign http://ppa.launchpad.net saucy/main Translation-en Fetched 1,498 kB in 2min 56s (8,478 B/s) Reading package lists... Done 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://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://www.geogebra.net stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C072A32983A736CF W: GPG error: http://deb.torproject.org saucy InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 74A941BA219EC810 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 saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192 W: GPG error: http://archive.ubuntu.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://archive.ubuntu.com saucy-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 saucy-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://archive.ubuntu.com saucy-proposed Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: https://private-ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E131728675254D99 W: GPG error: http://ppa.launchpad.net saucy Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8FC2C0DC77296259 W: Failed to fetch https://ppa.launchpad.net/clamtk/dists/saucy/main/binary-AMD64/Packages W: Failed to fetch https://ppa.launchpad.net/clamtk/dists/saucy/main/binary-i386/Packages W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/saucy-proposed/Release W: Failed to fetch http://ppa.launchpad.net/birdie-team/stable/ubuntu/dists/saucy/main/binary-AMD64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/birdie-team/stable/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/clicompanion-devs/clicompanion-nightlies/ubuntu/dists/saucy/main/binary-AMD64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/clicompanion-devs/clicompanion-nightlies/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/openshot.developers/ppa/ubuntu/dists/saucy/main/binary-AMD64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/openshot.developers/ppa/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/ubuntu-vn/ppa/ubuntu/dists/saucy/main/binary-AMD64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/ubuntu-vn/ppa/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/ylatuya/ppa/ubuntu/dists/saucy/main/binary-AMD64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/ylatuya/ppa/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found W: Some index files failed to download. They have been ignored, or old ones used instead.

また、定期的に次のようなメッセージが表示されます。 enter image description here

"これらのエラーを排除する方法" というセクションに従って、すべてではなくPPAを修正し、同じページでDaniloに従ってすべてのPPAを無効にします。

Disable all PPA 最終的に、エラーインスタンスは「公開キーが利用できないため、次の署名を検証できませんでした：NO_PUBKEY .......」

Ign http://archive.ubuntu.com saucy-proposed/universe Translation-en_US Fetched 27.6 MB in 1min 36s (287 kB/s) Reading package lists... Done W: GPG error: http://archive.ubuntu.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://archive.ubuntu.com saucy-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 saucy-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 saucy-proposed Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32

どうすれば解決できますか？

:~$ cat /etc/apt/sources.list # deb cdrom:[Ubuntu 13.10 _Saucy Salamander_ - Release AMD64 (20131016.1)]/ saucy main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://archive.ubuntu.com/ubuntu saucy main restricted deb-src http://archive.ubuntu.com/ubuntu saucy main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://archive.ubuntu.com/ubuntu saucy-updates main restricted deb-src http://archive.ubuntu.com/ubuntu saucy-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu saucy universe deb-src http://archive.ubuntu.com/ubuntu saucy universe deb http://archive.ubuntu.com/ubuntu saucy-updates universe deb-src http://archive.ubuntu.com/ubuntu saucy-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://archive.ubuntu.com/ubuntu saucy multiverse deb-src http://archive.ubuntu.com/ubuntu saucy multiverse deb http://archive.ubuntu.com/ubuntu saucy-updates multiverse deb-src http://archive.ubuntu.com/ubuntu saucy-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu saucy-security main restricted deb-src http://archive.ubuntu.com/ubuntu saucy-security main restricted deb http://archive.ubuntu.com/ubuntu saucy-security universe deb-src http://archive.ubuntu.com/ubuntu saucy-security universe deb http://archive.ubuntu.com/ubuntu saucy-security multiverse deb-src http://archive.ubuntu.com/ubuntu saucy-security multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu saucy partner deb-src http://archive.canonical.com/ubuntu saucy partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu saucy main deb-src http://extras.ubuntu.com/ubuntu saucy main # deb https://ppa.launchpad.net/clamtk saucy main # deb-src https://ppa.launchpad.net/clamtk saucy main deb http://deb.torproject.org/torproject.org saucy main deb http://archive.ubuntu.com/ubuntu saucy-proposed universe main restricted multiverse

そして:~$ cat /etc/apt/sources.list.d/*.list

deb http://ppa.launchpad.net/apt-fast/stable/ubuntu saucy main deb-src http://ppa.launchpad.net/apt-fast/stable/ubuntu saucy main deb http://ppa.launchpad.net/atareao/atareao/ubuntu saucy main deb-src http://ppa.launchpad.net/atareao/atareao/ubuntu saucy main # deb http://ppa.launchpad.net/birdie-team/stable/ubuntu saucy main # deb-src http://ppa.launchpad.net/birdie-team/stable/ubuntu saucy main deb http://ppa.launchpad.net/cairo-dock-team/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/cairo-dock-team/ppa/ubuntu saucy main deb http://ppa.launchpad.net/ehoover/compholio/ubuntu saucy main deb-src http://ppa.launchpad.net/ehoover/compholio/ubuntu saucy main deb http://ppa.launchpad.net/ffdiaporamateam/stable/ubuntu saucy main deb-src http://ppa.launchpad.net/ffdiaporamateam/stable/ubuntu saucy main deb http://ppa.launchpad.net/fossfreedom/packagefixes/ubuntu saucy main deb-src http://ppa.launchpad.net/fossfreedom/packagefixes/ubuntu saucy main deb http://ppa.launchpad.net/fossfreedom/rhythmbox-plugins/ubuntu saucy main deb-src http://ppa.launchpad.net/fossfreedom/rhythmbox-plugins/ubuntu saucy main deb http://ppa.launchpad.net/fossfreedom/rhythmbox/ubuntu saucy main deb-src http://ppa.launchpad.net/fossfreedom/rhythmbox/ubuntu saucy main deb http://ppa.launchpad.net/gabriel1984sibiu/aplicatii/ubuntu saucy main # deb-src http://ppa.launchpad.net/gabriel1984sibiu/aplicatii/ubuntu saucy main ### THIS FILE IS AUTOMATICALLY CONFIGURED ### # You may comment out this entry, but any other modifications may be lost. deb http://www.geogebra.net/linux/ stable main deb http://dl.google.com/linux/chrome/deb/ stable main ### THIS FILE IS AUTOMATICALLY CONFIGURED ### # You may comment out this entry, but any other modifications may be lost. #deb http://dl.google.com/linux/talkplugin/deb/ stable main deb http://ppa.launchpad.net/gstreamer-developers/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/gstreamer-developers/ppa/ubuntu saucy main deb http://ppa.launchpad.net/jacob/media/ubuntu saucy main deb-src http://ppa.launchpad.net/jacob/media/ubuntu saucy main # deb http://ppa.launchpad.net/landronimirc/clamtk/ubuntu saucy main # deb-src http://ppa.launchpad.net/landronimirc/clamtk/ubuntu saucy main deb http://ppa.launchpad.net/libreoffice/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/libreoffice/ppa/ubuntu saucy main deb http://ppa.launchpad.net/linrunner/tlp/ubuntu saucy main deb http://ppa.launchpad.net/me-davidsansome/clementine/ubuntu saucy main deb-src http://ppa.launchpad.net/me-davidsansome/clementine/ubuntu saucy main ## Please report any bug on https://bugs.launchpad.net/medibuntu/ deb http://ppa.launchpad.net/mqchael/pipelight/ubuntu saucy main deb-src http://ppa.launchpad.net/mqchael/pipelight/ubuntu saucy main deb http://ppa.launchpad.net/nathan-renniewaldock/xbmc-stable/ubuntu saucy main deb-src http://ppa.launchpad.net/nathan-renniewaldock/xbmc-stable/ubuntu saucy main deb http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu saucy main deb-src http://ppa.launchpad.net/nilarimogard/webupd8/ubuntu saucy main # deb http://ppa.launchpad.net/no1wantdthisname/openjdk-fontfix/ubuntu saucy main # deb-src http://ppa.launchpad.net/no1wantdthisname/openjdk-fontfix/ubuntu saucy main deb http://ppa.launchpad.net/noobslab/pear-apps/ubuntu saucy main deb-src http://ppa.launchpad.net/noobslab/pear-apps/ubuntu saucy main deb http://ppa.launchpad.net/nuvola-player-builders/stable/ubuntu saucy main deb-src http://ppa.launchpad.net/nuvola-player-builders/stable/ubuntu saucy main deb http://ppa.launchpad.net/nvbn-rm/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/nvbn-rm/ppa/ubuntu saucy main # This file makes sure that Opera Browser is kept up-to-date # as part of regular system upgrades # The line above will make sure you get all final public releases. # Uncomment the following line if you want to get alpha and beta # releases, too. deb http://ppa.launchpad.net/peterlevi/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/peterlevi/ppa/ubuntu saucy main deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/able2extract/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/chess/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/color-by-numbers-halloween-free/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/master-pdf-editor/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/minitube-ubuntu/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/outreel/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/splashtop-client/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/varicad-viewer/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb https://private-ppa.launchpad.net/commercial-ppa-uploaders/wuala/ubuntu saucy main #Added by software-center; credentials stored in /etc/apt/auth.conf deb http://ppa.launchpad.net/rvm/smplayer/ubuntu saucy main deb-src http://ppa.launchpad.net/rvm/smplayer/ubuntu saucy main deb http://ppa.launchpad.net/saiarcot895/myppa/ubuntu saucy main deb-src http://ppa.launchpad.net/saiarcot895/myppa/ubuntu saucy main deb http://ppa.launchpad.net/skunk/pepper-flash/ubuntu saucy main deb-src http://ppa.launchpad.net/skunk/pepper-flash/ubuntu saucy main deb http://ppa.launchpad.net/skype-wrapper/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/skype-wrapper/ppa/ubuntu saucy main deb http://ppa.launchpad.net/tualatrix/ppa/ubuntu saucy main deb-src http://ppa.launchpad.net/tualatrix/ppa/ubuntu saucy main # deb http://ppa.launchpad.net/ubuntu-vn/ppa/ubuntu saucy main # deb-src http://ppa.launchpad.net/ubuntu-vn/ppa/ubuntu saucy main deb http://ppa.launchpad.net/videolan/stable-daily/ubuntu saucy main deb http://ppa.launchpad.net/vincent-c/cherrytree/ubuntu saucy main deb-src http://ppa.launchpad.net/vincent-c/cherrytree/ubuntu saucy main deb http://ppa.launchpad.net/webupd8team/Java/ubuntu saucy main deb-src http://ppa.launchpad.net/webupd8team/Java/ubuntu saucy main deb-src http://ppa.launchpad.net/webupd8team/Java/ubuntu saucy main deb http://ppa.launchpad.net/webupd8team/tor-browser/ubuntu saucy main deb-src http://ppa.launchpad.net/webupd8team/tor-browser/ubuntu saucy main deb http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu saucy main deb-src http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu saucy main deb http://ppa.launchpad.net/wfg/0ad/ubuntu saucy main deb-src http://ppa.launchpad.net/wfg/0ad/ubuntu saucy main # deb http://ppa.launchpad.net/ylatuya/ppa/ubuntu saucy main # deb-src http://ppa.launchpad.net/ylatuya/ppa/ubuntu saucy main

Avinash Raj · Accepted Answer

this answerに従って、すべてのGPGエラーを削除します。
次に this answerに従って、404 Not found PPAをすべて自動的に削除します。

Michael_A · Answer

以下は、厄介なGPGエラーを削除するための段階的なテストです。

次のディレクトリ内のすべてのキーファイルを削除します： "/etc/apt/trusted.gpg.d"：
```
Sudo rm /etc/apt/trusted.gpg.d/* 
```

y-ppa-managerをインストールします。

Sudo add-apt-repository ppa:webupd8team/y-ppa-manager Sudo apt-get update Sudo apt-get install y-ppa-manager

それを起動します：
```
gksudo y-ppa-manager 
```
下にスクロールして「詳細」を選択します
[不足しているすべてのGPGキーをインポートしてみてください]を選択し、[OK]をクリックします。

これには1〜2分かかる場合があります。完了すると通知が届きます。
aptの更新：
```
Sudo apt-get update 
```
nO_PUBKEYエラーはもうありません:)

p.s：問題は this バグに関連しているようです。