Debian
從 keyring.debian.org 導入密鑰失敗
apt update由於多個簽名的公鑰不可用，更新儲存庫失敗。$ sudo apt update Get:1 http://security.debian.org/debian-security stretch/updates InRelease [94.3 kB] Ign:2 http://deb.debian.org/debian stretch InRelease Hit:3 http://deb.debian.org/debian stretch Release Ign:4 http://ftp.fr.debian.org/debian stretch InRelease Ign:6 http://ftp.fr.debian.org/debian jessie InRelease Hit:7 https://fr.archive.ubuntu.com/ubuntu bionic InRelease Hit:8 http://ftp.fr.debian.org/debian stretch Release Get:5 http://ftp.fr.debian.org/debian stretch-updates InRelease [91.0 kB] Hit:9 https://riot.im/packages/debian stretch InRelease Hit:10 http://ftp.fr.debian.org/debian jessie Release Err:1 http://security.debian.org/debian-security stretch/updates InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY 8B48AD6246925553 Get:11 https://mega.nz/linux/MEGAsync/Debian_9.0 ./ InRelease [1,480 B] Ign:12 http://download.opensuse.org/repositories/home:/strycore/Debian_9.0 ./ InRelease Hit:13 http://download.opensuse.org/repositories/home:/strycore/Debian_9.0 ./ Release Err:14 http://deb.debian.org/debian stretch Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY EF0F382A1A7B6500 Get:15 https://content.runescape.com/downloads/ubuntu trusty InRelease [2,236 B] Err:16 http://ftp.fr.debian.org/debian stretch Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY EF0F382A1A7B6500 Err:9 https://riot.im/packages/debian stretch InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E019645248E8F4A1 Err:5 http://ftp.fr.debian.org/debian stretch-updates InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 Err:17 http://ftp.fr.debian.org/debian jessie Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY CBF8D6FD518E17E1 Err:11 https://mega.nz/linux/MEGAsync/Debian_9.0 ./ InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4B4E7A9523ACD201 Err:18 http://download.opensuse.org/repositories/home:/strycore/Debian_9.0 ./ Release.gpg The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2F7F0DA5FD5B64B9 Err:15 https://content.runescape.com/downloads/ubuntu trusty InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7373B12CE03BEB4B Reading package lists... Done W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://security.debian.org/debian-security stretch/updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY 8B48AD6246925553 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://deb.debian.org/debian stretch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY EF0F382A1A7B6500 W: Skipping acquire of configured file 'xenial/binary-amd64/Packages' as repository 'https://fr.archive.ubuntu.com/ubuntu bionic InRelease' doesn't have the component 'xenial' (component misspelt in sources.list?) W: Skipping acquire of configured file 'xenial/binary-i386/Packages' as repository 'https://fr.archive.ubuntu.com/ubuntu bionic InRelease' doesn't have the component 'xenial' (component misspelt in sources.list?) W: Skipping acquire of configured file 'xenial/i18n/Translation-en_US' as repository 'https://fr.archive.ubuntu.com/ubuntu bionic InRelease' doesn't have the component 'xenial' (component misspelt in sources.list?) W: Skipping acquire of configured file 'xenial/i18n/Translation-en' as repository 'https://fr.archive.ubuntu.com/ubuntu bionic InRelease' doesn't have the component 'xenial' (component misspelt in sources.list?) W: Skipping acquire of configured file 'xenial/dep11/Components-amd64.yml' as repository 'https://fr.archive.ubuntu.com/ubuntu bionic InRelease' doesn't have the component 'xenial' (component misspelt in sources.list?) W: Skipping acquire of configured file 'xenial/dep11/icons-64x64.tar' as repository 'https://fr.archive.ubuntu.com/ubuntu bionic InRelease' doesn't have the component 'xenial' (component misspelt in sources.list?) W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ftp.fr.debian.org/debian stretch Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY EF0F382A1A7B6500 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://riot.im/packages/debian stretch InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E019645248E8F4A1 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ftp.fr.debian.org/debian stretch-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ftp.fr.debian.org/debian jessie Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010 NO_PUBKEY CBF8D6FD518E17E1 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://mega.nz/linux/MEGAsync/Debian_9.0 ./ InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4B4E7A9523ACD201 W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://download.opensuse.org/repositories/home:/strycore/Debian_9.0 ./ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2F7F0DA5FD5B64B9 W: GPG error: https://content.runescape.com/downloads/ubuntu trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7373B12CE03BEB4B E: The repository 'https://content.runescape.com/downloads/ubuntu trusty InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.我試圖在沒有的情況下更新密鑰
keyring.debian.org$ gpg --recv-keys 9D6D8F6BC857C906 gpg: key 9D6D8F6BC857C906: 12 signatures not checked due to missing keys gpg: key 9D6D8F6BC857C906: "Debian Security Archive Automatic Signing Key (8/jessie) <ftpmaster@debian.org>" not changed gpg: Total number processed: 1 gpg: unchanged: 1與
$ gpg --keyserver keyring.debian.org --recv-keys 9D6D8F6BC857C906 gpg: no valid OpenPGP data found. gpg: Total number processed: 0
ca-certificates與 version20180409以及debian-keyringversion都是最新的2018.03.24。我也
/etc/apt/trusted.gpg根據https://serverfault.com/q/851724刪除了。@Stephen Kitt 的要求：
$ ls -la /etc/apt/trusted.gpg.d total 28 drwxr-xr-x 2 root root 4096 Jan 2 10:42 . drwxr-xr-x 6 root root 4096 Jan 2 11:06 .. -rw-r--r-- 1 root root 10345 Jan 2 10:42 ubuntu-keyring-2012-archive.gpg -rw-r--r-- 1 root root 2796 Feb 6 2018 ubuntu-keyring-2012-archive.gpg~ -rw-r--r-- 1 root root 2794 Feb 6 2018 ubuntu-keyring-2012-cdimage.gpg $ apt policy debian-archive-keyring debian-archive-keyring: Installed: 2017.7ubuntu1 Candidate: 2017.7ubuntu1 Version table: *** 2017.7ubuntu1 500 500 https://fr.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages 500 https://fr.archive.ubuntu.com/ubuntu bionic/universe i386 Packages 100 /var/lib/dpkg/status 2017.5 500 500 http://ftp.fr.debian.org/debian stretch/main amd64 Packages 500 http://ftp.fr.debian.org/debian stretch/main i386 Packages 500 http://deb.debian.org/debian stretch/main amd64 Packages 500 http://deb.debian.org/debian stretch/main i386 Packages 2017.5~deb8u1 500 500 http://ftp.fr.debian.org/debian jessie/main amd64 Packages 500 http://ftp.fr.debian.org/debian jessie/main i386 Packages如何解決導入正確密鑰的問題？
您需要安裝 Debian 的版本
debian-archive-keyring，即包含存檔密鑰的軟體包。你目前有 Ubuntu 的。（debian-keyring包含開發人員的密鑰。）您可能必須手動下載它
dpkg -i並使用（作為 root 或使用）安裝它sudo。作為長期修復，您應該從儲存庫中刪除 Bionic，或正確配置固定，以便預設情況下不將其用作升級候選者。
如果沒有任何效果，請嘗試以下操作：
apt update --allow-unauthenticated