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Nvidia GPG 错误由于公钥不可用，无法验证以下签名：NO_PUBKEY

tag-icon • tag-icon drivers apt nvidia updates cuda
Nvidia GPG 错误由于公钥不可用，无法验证以下签名：NO_PUBKEY

尝试更新 cuda 时出现此错误

Err:1 https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64  InRelease            
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC

W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 InRelease:
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC 
E: The repository 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 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.

答案1

解决了这个问题：

sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub

sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub

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