Hello everyone,
I get the following error message when trying to run apt update:

An error occurred while verifying the signature. The repository has not been updated and the previous index files are being used. GPG error: kaisen-rolling InRelease: The following signatures could not be verified because their public key is not available: NO_PUBKEY 2D89C5374D93F216 NO_PUBKEY 1FC173DF2FE25547

What do I need to do?

Thanks for your help

Translated with (free version)

Hello @all
I have the same problem on 2.3 on a virtualbox.
I tried my known tips, but none are working.
If someone has the solution, i take it with pleasure.

Good morning.

Have you tried modifying the sources.list file? Have you tried adding a repository?

When a new repository is added, the installation of its public key (GPG) is mandatory and must be installed manually (except in the case of commands with GPG installation expected).

When this doesn’t happen, we have errors in the system update


@manni, you do this:

Download the new keyring:

Install the new keyring:
sudo dpkg -i kaisen-archive-keyring_2024+kaisen2_all.deb

We are making new ISO images to fix this problem permanently, but they not ready yet to be published.

This problem is caused by the expiration of olds GPG keys, now replaced by the new version of the kaisen-archive-keyring package. Sorry for the inconveniance.

Thanks a lot!
It works…


1 Like