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Public key not available: NO_PUBKEY 28DA432DAAC8BAEA

kosniphys
Beginner
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I am having an issue a while now when trying to apt update:

 

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://repositories.intel.com/gpu/ubuntu jammy/lts/2350 InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 28DA432DAAC8BAEA

W: Failed to fetch https://repositories.intel.com/gpu/ubuntu/dists/jammy/lts/2350/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 28DA432DAAC8BAEA

My laptop is:

Lenovo ThinkPad P14s Gen 3

My ubuntu is:

Ubuntu 22.04.5 LTS (in the about page)

ThinkPad-P14s-Gen-3 6.8.0-50-generic #51~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 21 12:03:03 UTC 2 x86_64 x86_64 x86_64 GNU/Linux (running uname -ar)

and my cpu is:

12th Gen Intel(R) Core(TM) i7-1260P

I am also attaching my sources.list

kosniphys_0-1735827835698.png

with the intel-gpu-jammy.list having:

deb [arch=amd64 signed-by=/usr/share/keyrings/intel-graphics.gpg] https://repositories.intel.com/gpu/ubuntu jammy/lts/2350 unified

 

Any help please?

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