How to remove a PubKey

Question

I'm getting the error:

GPG error: file:/var/cudnn-local-repo-ubuntu2004-8.8.0.121 InRelease: 
The following signatures couldn't be verified because the public key is not available: 
NO_PUBKEY 6A4AA528B70907B4

and I have tried this solution, but I'm getting: gpg: keyserver receive failed: Connection timed out.

Can you please tell me how can I remove that Pub-Key please? thanks in advance.

Is 6A4AA528B70907B4 a real key id? Please provide valid key. Which package is concerned? — Gilles Quénot, Feb 27 '23 at 16:49

score 0 · Accepted Answer · answered Feb 28 '23 at 16:07

0

The solution is:

$ ls /etc/apt/sources.list.d/ to see the file that is generating the problem, it is /etc/apt/sources.list.d/cudnn-local-ubuntu2004-8.8.0.121.list in my case.
$ sudo rm /etc/apt/sources.list.d/cudnn-local-ubuntu2004-8.8.0.121.list*
$ sudo apt update

answered Feb 28 '23 at 16:07

Bilal

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doest it works? – Gilles Quénot Feb 28 '23 at 18:44
@GillesQuénot It does, the source is the comments on this question – Bilal Feb 28 '23 at 19:12

How to remove a PubKey

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