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Re: W: An error occurred during the signature verification
Posted by: Alan Shank
Date: May 25, 2022 04:31PM

I downloaded the build key for 8.0.27, put it in a file (public_key.asc) and did:
>gpg --import public_key.asc
Here's the output:

alan ~ $gpg --import public_key.asc
gpg: key 8C718D3B5072E1F5: 6 duplicate signatures removed
gpg: key 8C718D3B5072E1F5: 106 signatures not checked due to missing keys
gpg: key 8C718D3B5072E1F5: "MySQL Release Engineering <>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1

Next, I downloaded the build key for 8.0.28, put it in a file (public_key2.asc, and did:

>gpg import public_key2.asc
The output:

alan ~ $gpg --import public_key2.asc
gpg: key 467B942D3A79BD29: public key "MySQL Release Engineering <>" imported
gpg: Total number processed: 1
gpg: imported: 1

Success, right?
But when I tried again "apt update" I still got the error
Err:1 focal InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 467B942D3A79BD29

The NO_PUBKEY 467.... is the same as the one that was successfully imported.
Alan Shank

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