Ubuntu
update-manager package

PROBLEMS WITH UPDATE MANAGER

Asked by GIUSEPPE MASSETANI

I'm working with an Ubuntu 12.04 Operating System installed in my pc. Updates of packages/repositories have always been working pretty well, so far. But now, and for the last 29 days, the update manager keeps saying that there are no package updates available via Internet. Now, I am wondering: this sounds really very strange, updates come continuously, or almost continuously, with Ubuntu. Is it possible there are no updates for 29 days....?????????? Has this ever happened to you???? Where is the problem, and how can I fix it??? Actually there could be some computer security problems behind this!!! Can someone help me???? Thank you very much indeed!!!

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Ubuntu update-manager Edit question
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GIUSEPPE MASSETANI
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Revision history for this message
Thomas Krüger (thkrueger) said : 		#1

Can you please open the Terminal by pressing Ctrl+Alt+T, enter the following command, press Enter and copy the full output for us? Thanks!

command:
sudo apt-get update

(It will ask for your password.)

Revision history for this message
GIUSEPPE MASSETANI (joethelion) said : 		#2

I have entered the command line in the terminal, just as you asked me to do, Thomas.
Please find here below the full output by the terminal:

Scaricamento di:1 http://it.archive.ubuntu.com precise-updates Release.gpg [198 B]
Trovato http://it.archive.ubuntu.com precise Release.gpg
Trovato http://archive.canonical.com precise Release.gpg
Trovato http://security.ubuntu.com precise-security Release.gpg
Trovato http://it.archive.ubuntu.com precise-backports Release.gpg
Trovato http://archive.canonical.com precise Release
Trovato http://security.ubuntu.com precise-security Release
Scaricamento di:2 http://it.archive.ubuntu.com precise-updates Release [49,6 kB]
Trovato http://it.archive.ubuntu.com precise Release
Err http://it.archive.ubuntu.com precise-updates Release

Trovato http://archive.canonical.com precise/partner i386 Packages
Trovato http://it.archive.ubuntu.com precise-backports Release
Trovato http://security.ubuntu.com precise-security/main Sources
Ign http://archive.canonical.com precise/partner TranslationIndex
Trovato http://security.ubuntu.com precise-security/restricted Sources
Trovato http://security.ubuntu.com precise-security/universe Sources
Trovato http://security.ubuntu.com precise-security/multiverse Sources
Trovato http://security.ubuntu.com precise-security/main i386 Packages
Trovato http://security.ubuntu.com precise-security/restricted i386 Packages
Trovato http://it.archive.ubuntu.com precise/universe Sources
Trovato http://security.ubuntu.com precise-security/universe i386 Packages
Trovato http://security.ubuntu.com precise-security/multiverse i386 Packages
Trovato http://security.ubuntu.com precise-security/main TranslationIndex
Trovato http://security.ubuntu.com precise-security/multiverse TranslationIndex
Trovato http://security.ubuntu.com precise-security/restricted TranslationIndex
Trovato http://security.ubuntu.com precise-security/universe TranslationIndex
Trovato http://it.archive.ubuntu.com precise/main Sources
Trovato http://security.ubuntu.com precise-security/main Translation-en
Trovato http://security.ubuntu.com precise-security/multiverse Translation-en
Trovato http://security.ubuntu.com precise-security/restricted Translation-en
Trovato http://it.archive.ubuntu.com precise/multiverse Sources
Trovato http://security.ubuntu.com precise-security/universe Translation-en
Trovato http://it.archive.ubuntu.com precise/universe i386 Packages
Trovato http://it.archive.ubuntu.com precise/main i386 Packages
Trovato http://it.archive.ubuntu.com precise/multiverse i386 Packages
Trovato http://it.archive.ubuntu.com precise/main TranslationIndex
Trovato http://it.archive.ubuntu.com precise/multiverse TranslationIndex
Ign http://archive.canonical.com precise/partner Translation-it_IT
Trovato http://it.archive.ubuntu.com precise/universe TranslationIndex
Ign http://archive.canonical.com precise/partner Translation-it
Trovato http://it.archive.ubuntu.com precise-backports/main Sources
Ign http://archive.canonical.com precise/partner Translation-en
Trovato http://it.archive.ubuntu.com precise-backports/restricted Sources
Trovato http://it.archive.ubuntu.com precise-backports/universe Sources
Trovato http://it.archive.ubuntu.com precise-backports/multiverse Sources
Trovato http://it.archive.ubuntu.com precise-backports/main i386 Packages
Trovato http://it.archive.ubuntu.com precise-backports/restricted i386 Packages
Trovato http://it.archive.ubuntu.com precise-backports/universe i386 Packages
Trovato http://it.archive.ubuntu.com precise-backports/multiverse i386 Packages
Trovato http://it.archive.ubuntu.com precise-backports/main TranslationIndex
Trovato http://it.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Trovato http://it.archive.ubuntu.com precise-backports/restricted TranslationIndex
Trovato http://it.archive.ubuntu.com precise-backports/universe TranslationIndex
Trovato http://it.archive.ubuntu.com precise/main Translation-it
Trovato http://it.archive.ubuntu.com precise/main Translation-en
Trovato http://it.archive.ubuntu.com precise/multiverse Translation-it
Trovato http://it.archive.ubuntu.com precise/multiverse Translation-en
Trovato http://it.archive.ubuntu.com precise/universe Translation-it
Trovato http://it.archive.ubuntu.com precise/universe Translation-en
Trovato http://it.archive.ubuntu.com precise-backports/main Translation-en
Trovato http://it.archive.ubuntu.com precise-backports/multiverse Translation-en
Trovato http://it.archive.ubuntu.com precise-backports/restricted Translation-en
Trovato http://it.archive.ubuntu.com precise-backports/universe Translation-en
Scaricamento di:3 http://extras.ubuntu.com precise Release.gpg [72 B]
Trovato http://extras.ubuntu.com precise Release
Trovato http://extras.ubuntu.com precise/main Sources
Trovato http://extras.ubuntu.com precise/main i386 Packages
Ign http://extras.ubuntu.com precise/main TranslationIndex
Ign http://extras.ubuntu.com precise/main Translation-it_IT
Ign http://extras.ubuntu.com precise/main Translation-it
Ign http://extras.ubuntu.com precise/main Translation-en
Recuperati 271 B in 6s (43 B/s)
Lettura elenco dei pacchetti... Fatto
W: Si è verificato un errore nel verificare la firma. Il repository non è aggiornato e verranno usati i file indice precedenti. Errore GPG: http://it.archive.ubuntu.com precise-updates Release: Le seguenti firme non erano valide: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <email address hidden>

W: Impossibile recuperare http://it.archive.ubuntu.com/ubuntu/dists/precise-updates/Release

W: Impossibile scaricare alcuni file di indice: saranno ignorati o verranno usati quelli vecchi."

I look forward to your reply. Anyway the iltalian expressions mean, more or less, that there werre problems with the signing key and the repository was not updated...............

Revision history for this message
N1ck 7h0m4d4k15 (nicktux) said : 		#3

Try these commands please

    sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com 40976EAF437D05B5

    sudo apt-get update

    sudo apt-get dist-upgrade

Regards
 NikTh

Revision history for this message
GIUSEPPE MASSETANI (joethelion) said : 		#4

Thank you very much for your suggestions, Nick. But I haven't managed to solve my problem, yet. The last two commands simply did not work. I shall write here under what the terminal said after the first command line:

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.HHyxaOr5FO --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --recv-key --keyserver 4097EAF437D05B5

Revision history for this message
GIUSEPPE MASSETANI (joethelion) said : 		#5

Dear friends, I have eventually managed to solve my problem. I found a solution in http://forum.ubuntu-it.org/viewtopic.php?p=4199851. In the topic of this Ubuntu forum I found a command line which solved my problem.
So all I had to digit, in order to delete the bad signature key was:

sudo rm -r /var/lib/apt/lists/* -vf

Thank you all very much for your help and attention!!!