Update GPG Key

Wikis > Informatique > Linux > APT > Update GPG Key

When you add to your distribution depots to benefit from higher version of some software, you are probably often faced with a kind of error message:

W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY votre_n°_de_clé

To overcome this problem you simply enter in a terminal the following command:

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com votre_n°_de_clé

or :

sudo apt-get install add-apt-key && sudo add-apt-key votre_n°_de_clé