Ubuntu 18.04.5 LTS: An error occurred during the signature verification

[David]

Hallo,
ich verwende EGroupware 20.1.20210324 auf Ubuntu 18.04.5 LTS.

Ich hatte damals diese Anleitung zum installieren verwendet.

Seit neuestem habe ich dieses, laut Forum bereits bekannte, Problem: Wenn ich apt update anrufe, erhalte ich folgenden Fehler:

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://download.opensuse.org/repositories/server:/eGroupWare/xUbuntu_18.04  InRelease: The following signatures were invalid: EXPKEYSIG 3545DFD68B5C64E0 server:eGroupWare OBS Project <server:eGroupWare@build.opensuse.org>
W: Failed to fetch http://download.opensuse.org/repositories/server:/eGroupWare/xUbuntu_18.04/InRelease  The following signatures were invalid: EXPKEYSIG 3545DFD68B5C64E0 server:eGroupWare OBS Project <server:eGroupWare@build.opensuse.org>
W: Some index files failed to download. They have been ignored, or old ones used instead.

Leider haben ich den bereits vorhandenen Foren-Beiträgen keine für mich funktionierende Lösung gefunden.

Wer kann helfen? Wie kann ich das Problem lösen?

Danke und Grüße,
David.

[StefanU]

Hallo David.

Wie kann ich das Problem lösen?

In dem du den abgelaufenen key erneuerst:

Apt cert expired

Stefan

[David]

Das habe ich ich probiert:

Der Command wget -nv https://download.opensuse.org/repositories/server:eGroupWare/xUbuntu_18.04/Release.key -O - sudo apt-key add - wirft folgende Meldung aus:

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.5 (GNU/Linux)
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=OPcx
-----END PGP PUBLIC KEY BLOCK-----
2021-04-06 19:22:11 URL:https://download.opensuse.org/repositories/server:/eGroupWare/xUbuntu_18.04/Release.key [1109/1109] -> “-” [1]
wget: unable to resolve host address 'sudo’
wget: unable to resolve host address 'apt-key’
wget: unable to resolve host address 'add’
wget: unable to resolve host address '-'
FINISHED --2021-04-06 19:22:11–
Total wall clock time: 0.2s
Downloaded: 1 files, 1.1K in 0s (254 MB/s)

apt update erzeugt noch immer den selben Fehler.

[StefanU]

Da war bei Ralf ein kleiner Syntax-Fehler drin. Probier mal:

wget -nv https://download.opensuse.org/repositories/server:eGroupWare/xUbuntu_18.04/Release.key -O - | sudo apt-key add -

Man muss natürlich beide Befehle mit einer Pipe verbinden.

Siehe auch:

EGroupware/egroupware

---

apt update erzeugt noch immer den selben Fehler.

Das soll wohl sein wenn der Key nicht stimmt.

Stefan

[adnanbutt050]

I was also facing the same error & the problem was solved by renewing the expired certificate. using the command mentioned by @StefanU

[IT07]

2021-08-12 21:46:51 URL:https://download.opensuse.org/repositories/server:/eGroupWare/xUbuntu_18.04/Release.key [1109/1109] -> “-” [1]
gpg: invalid key resource URL '/etc/apt/trusted.gpg.d/server:eGroupWare.gpg’
gpg: keyblock resource ‘(null)’: General error
gpg: key 3545DFD68B5C64E0: 1 signature not checked due to a missing key
gpg: key 3B4FE6ACC0B21F32: 3 signatures not checked due to missing keys
gpg: key D94AA3F0EFE21092: 3 signatures not checked due to missing keys
gpg: key 871920D1991BC93C: 1 signature not checked due to a missing key
gpg: Total number processed: 7
gpg: skipped new keys: 7

Can you help me please?

[StefanU]

Hi IT07.

Please never steal someone else’s (and closed) topic. If you have a problem/question, please create your own thread.

---

Outdated or missing repo keys are a common issue with Linux distros. Nothing EGroupware-specific.

Have a look here:

Update Release.key

Stefan