在配备 4G 内存、500G 硬盘和 Intel® Core™ i3 CPU M 330 @ 2.13GHz × 4 的 HP G62-144DX 上全新安装 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64 GNU/Linux一切工作正常。我已经更新了 apt 存储库几次，以确保没有更新，所以我知道它在我尝试添加非免费之前正在工作。
在 synaptic apt 中选择“具有非自由依赖项的 DFSG 兼容 Softeare (contrib)”后，变得“不高兴”。我曾尝试寻找答案，但要么是在错误的地方，要么就是我（即墨菲定律）。
当 apt-get update 被调用时，我得到以下信息：
# apt update
Ign:1 http://ftp.us.debian.org/debian stretch InRelease
Hit:2 http://ftp.us.debian.org/debian stretch-updates InRelease
Hit:3 http://ftp.us.debian.org/debian stretch Release
Err:2 http://ftp.us.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
Hit:4 http://security.debian.org/debian-security stretch/updates InRelease
Err:5 http://ftp.us.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 CBF8D6FD518E17E1 NO_PUBKEY EF0F382A1A7B6500
Err:4 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
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
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.us.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.us.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 CBF8D6FD518E17E1 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: 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: Failed to fetch http://security.debian.org/debian-security/dists/stretch/updates/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY 8B48AD6246925553
W: Failed to fetch http://ftp.us.debian.org/debian/dists/stretch-updates/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010
W: Failed to fetch http://ftp.us.debian.org/debian/dists/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 CBF8D6FD518E17E1 NO_PUBKEY EF0F382A1A7B6500
W: Some index files failed to download. They have been ignored, or old ones used instead.
我尝试通过取消选中Synaptic中的选项并将sources.list.saved复制到sources.list来返回，但没有成功。
据我所知，apt-key 拥有更新所抱怨的所有密钥。以下是我能想到的相关输出：
秋季后的 Sources.list：
#
# deb cdrom:[Debian GNU/Linux 9.0.0 _Stretch_ - Official amd64 NETINST 20170617-13:06]/ stretch main
# deb cdrom:[Debian GNU/Linux 9.0.0 _Stretch_ - Official amd64 NETINST 20170617-13:06]/ stretch main
deb http://ftp.us.debian.org/debian/ stretch main contrib
deb-src http://ftp.us.debian.org/debian/ stretch main contrib
deb http://security.debian.org/debian-security stretch/updates main contrib
deb-src http://security.debian.org/debian-security stretch/updates main contrib
# stretch-updates, previously known as 'volatile'
deb http://ftp.us.debian.org/debian/ stretch-updates main contrib
deb-src http://ftp.us.debian.org/debian/ stretch-updates main contrib
apt-key 列表：
# apt-key list
/etc/apt/trusted.gpg.d/debian-archive-jessie-automatic.gpg
----------------------------------------------------------
pub rsa4096 2014-11-21 [SC] [expires: 2022-11-19]
126C 0D24 BD8A 2942 CC7D F8AC 7638 D044 2B90 D010
uid [ unknown] Debian Archive Automatic Signing Key (8/jessie) <[email protected]>
/etc/apt/trusted.gpg.d/debian-archive-jessie-security-automatic.gpg
-------------------------------------------------------------------
pub rsa4096 2014-11-21 [SC] [expires: 2022-11-19]
D211 6914 1CEC D440 F2EB 8DDA 9D6D 8F6B C857 C906
uid [ unknown] Debian Security Archive Automatic Signing Key (8/jessie) <[email protected]>
/etc/apt/trusted.gpg.d/debian-archive-jessie-stable.gpg
-------------------------------------------------------
pub rsa4096 2013-08-17 [SC] [expires: 2021-08-15]
75DD C3C4 A499 F1A1 8CB5 F3C8 CBF8 D6FD 518E 17E1
uid [ unknown] Jessie Stable Release Key <[email protected]>
/etc/apt/trusted.gpg.d/debian-archive-stretch-automatic.gpg
-----------------------------------------------------------
pub rsa4096 2017-05-22 [SC] [expires: 2025-05-20]
E1CF 20DD FFE4 B89E 8026 58F1 E0B1 1894 F66A EC98
uid [ unknown] Debian Archive Automatic Signing Key (9/stretch) <[email protected]>
sub rsa4096 2017-05-22 [S] [expires: 2025-05-20]
/etc/apt/trusted.gpg.d/debian-archive-stretch-security-automatic.gpg
--------------------------------------------------------------------
pub rsa4096 2017-05-22 [SC] [expires: 2025-05-20]
6ED6 F5CB 5FA6 FB2F 460A E88E EDA0 D238 8AE2 2BA9
uid [ unknown] Debian Security Archive Automatic Signing Key (9/stretch) <[email protected]>
sub rsa4096 2017-05-22 [S] [expires: 2025-05-20]
/etc/apt/trusted.gpg.d/debian-archive-stretch-stable.gpg
--------------------------------------------------------
pub rsa4096 2017-05-20 [SC] [expires: 2025-05-18]
067E 3C45 6BAE 240A CEE8 8F6F EF0F 382A 1A7B 6500
uid [ unknown] Debian Stable Release Key (9/stretch) <[email protected]>
/etc/apt/trusted.gpg.d/debian-archive-wheezy-automatic.gpg
----------------------------------------------------------
pub rsa4096 2012-04-27 [SC] [expires: 2020-04-25]
A1BD 8E9D 78F7 FE5C 3E65 D8AF 8B48 AD62 4692 5553
uid [ unknown] Debian Archive Automatic Signing Key (7.0/wheezy) <[email protected]>
/etc/apt/trusted.gpg.d/debian-archive-wheezy-stable.gpg
-------------------------------------------------------
pub rsa4096 2012-05-08 [SC] [expires: 2019-05-07]
ED6D 6527 1AAC F0FF 15D1 2303 6FB2 A1C2 65FF B764
uid [ unknown] Wheezy Stable Release Key <[email protected]>
因此，如果我正在阅读这篇文章，那么 apt 拥有识别发行版所需的所有密钥，但拒绝这样做。
有人可以告诉我我错过了什么吗？我的头发已经所剩无几了，一次拔掉一把也无助于回答这个问题或改善我的外表。
根据请求添加 df -h
$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 1.9G 0 1.9G 0% /dev
tmpfs 376M 6.2M 370M 2% /run
/dev/sda1 92G 6.8G 80G 8% /
tmpfs 1.9G 12K 1.9G 1% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda6 19G 3.1G 15G 18% /home
/dev/sda7 341G 82G 242G 26% /store
tmpfs 376M 16K 376M 1% /run/user/119
tmpfs 376M 44K 376M 1% /run/user/1000
/dev/sdb2 1008G 71G 887G 8% /media/mhenwood/1T Files
/dev/sdb3 839G 68G 771G 9% /media/mhenwood/MS_STORE
/dev/sr0 11M 11M 0 100% /media/cdrom0
除了完整磁盘之外，您还在寻找其他东西吗？ - 只是好奇
答案1
我在使用发行版安装程序安装的全新 debian 9 上也遇到同样的问题。在获取 trust.gpg 文件后，问题消失了：
sudo mv trusted.gpg trusted.gpg-broken
后来阿特似乎很高兴。我也是 ！