小编Lem*_*hat的帖子

我只是想运行sudo apt update，但遇到了看似经典的错误：

Err:9 https://dl.winehq.org/wine-builds/ubuntu focal InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
Err:10 https://dl.winehq.org/wine-builds/ubuntu jammy InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F

这一切都很好。几个来源[1] [2]提到这是一个快速而简单的修复，特别是针对该密钥： wget -nc https://dl.winehq.org/wine-builds/winehq.key && sudo apt-key add winehq.key && sudo apt update

但是当我运行该命令时，它仍然在该步骤中反弹sudo apt update并出现相同的错误，即使密钥似乎已正确添加。我什至像这样仔细检查过：

$ apt-key list
/etc/apt/trusted.gpg
--------------------
[...]

pub   rsa3072 2018-12-10 [SC]
      D43F 6401 4536 9C51 D786  DDEA …