Re: Failure getting compat on Emacs <29. seq.2.24 signature expired in gnu elpa?

[Pierre Rouleau <prouleau001@gmail.com>]

On Mon, Jun 3, 2024 at 10:48 AM Stefan Monnier <monnier@iro.umontreal.ca>
wrote:

> > Install package ‘gnu-elpa-keyring-update-2022.12’? (y or n) y
> > Contacting host: elpa.gnu.org:443
> > package-install-from-archive:
> > https://elpa.gnu.org/packages/gnu-elpa-keyring-update-2022.12.tar: Not
> found
>
> Presumably your Emacs used an old cached version of `archive-contents`
> (the current version is 2022.12.1).
>
> It's quite possible.  As I said that specific system runs macOS Mojave,
which is no longer supported by Apple.  Installing software on it is a
challenge,
except for Emacs lisp packages, or something I can get through DVCS like
Git,
Mercurial, etc and build from source.

But I ran into another issue on that system once accessing gnu and nongnu
was solved.
I tried to install the emacs-eat from nongnu elpa and got the following
error:

Failed to verify signature eat-0.9.4.tar.sig:
Good signature from 645357D2883A0966 GNU ELPA Signing Agent (2023) <
elpasign@elpa.gnu.org> (trust undefined) created at
2024-03-31T07:10:08-0400 using (unknown algorithm 22)
Signature made by expired key 066DAFCB81E42C40 GNU ELPA Signing Agent
(2019) <elpasign@elpa.gnu.org>
Command output:
gpg: Signature made Sun 31 Mar 07:10:08 2024 EDT
gpg:                using RSA key C433554766D3DDC64221BFAA066DAFCB81E42C40
gpg: Good signature from "GNU ELPA Signing Agent (2019) <
elpasign@elpa.gnu.org>" [expired]
gpg: Note: This key has expired!
Primary key fingerprint: C433 5547 66D3 DDC6 4221  BFAA 066D AFCB 81E4 2C40
gpg: Signature made Sun 31 Mar 07:10:08 2024 EDT
gpg:                using EDDSA key 0327BE68D64D9A1A66859F15645357D2883A0966
gpg: Good signature from "GNU ELPA Signing Agent (2023) <
elpasign@elpa.gnu.org>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the
owner.
Primary key fingerprint: AC49 B8A5 FDED 6931 F40E  E78B F993 C037 86DE 7ECA
     Subkey fingerprint: 0327 BE68 D64D 9A1A 6685  9F15 6453 57D2 883A 0966

It's probably something invalid on that system, which runs Emcas 26.3.
I have been able to install the eat package on other systems that run
Emacs 27.2 or 29.3 without any problem.

My knowledge of gpg is not what I'd like it to be...
Is there something obvious I should do on that old system to solve the
above problem?

Thanks

-- 
/Pierre