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mutetikasikali

07-05-2012 02:01 AM

How do I use software from a PPA?

I am running my new system and when i run sudo apt-get update at the end i get the following:=GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6AF0E1940624A220

please instruct me to get out this mess.

evo2	07-05-2012 02:18 AM

Hi,

I use the following script for importing gpg keys to apt.

Code:

% cat bin/apt-add-key

#!/bin/sh

# $1 is the the key ID

gpg --keyserver subkeys.pgp.net --recv $1 &&\

gpg --export --armor $1 | sudo apt-key add -

Just put it somewhere in your path and then run it with the key ID as the argument (as indicated in the comment). Eg

Code:

apt-add-key 6AF0E1940624A220

HTH,

Evo2.

TobiSGD

07-05-2012 07:12 AM

Two things about PPAs:
1. PPAs are third party repositories that are not controlled by Canonical/Ubuntu. Their quality may vary heavily. It is up to you, the user, to find out how good the quality of a PPA is and if it is trustworthy at all.
2. You are trying to use a PPA for Ubuntu 9.04 Jaunty. This version is way out of date and may be the packages won't work on newer systems. Before using such old PPAs you should search for PPAs that have the needed packages for your version of Ubuntu.

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