How to fix Webmin repo: NO_PUBKEY 2D223B918916F2A2

OS type and version Ubuntu 22.04.2
Webmin version 2.100

W: GPG error: Index of /download/newkey/repository stable Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 2D223B918916F2A2
E: The repository ‘ stable Release’ 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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I am receiving the same error when trying to upgrade another package. Apparently the ‘’‘apt-get update’‘’ command is getting these errors when trying to update.


This is a known and already fixed bug in upstream code.

The fix to this issue is as simple as:


Thank you. I have been update/upgrading for more than 3 years now so I was assuming I had inherit all upstream code… probably some reading I missed.
But now it says…
E: Conflicting values set for option Signed-By regarding source stable: /usr/share/keyrings/debian-webmin-developers.gpg != /usr/share/keyrings/ubuntu-webmin-developers.gpg
E: The list of sources could not be read.
Any tips here?
Thank you
P.S. I am running Ubuntu 22.04.2 and Webmin 2.100

Yeah, check and clean APT config files. Search for whatever APT config files contain webmin string, e.g.:

grep -Rsi webmin /etc/apt

All good now indeed. Thank you!

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