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Got this error while trying to update cuda

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.
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1 Answer 1

10

solved with this:

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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  • Where did you find those URLs?
    – DrMcCleod
    Aug 9, 2023 at 14:49
  • If your base image is ubuntu 18 then adding these two as RUN statements before your apt-get update solves the issues. Very handy with tensorflow official docker image build to fix the issues.
    – Gautam
    Sep 4, 2023 at 6:36

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