But if you use it when the Ubuntu key server is down, the GPG key will not be added. And during the instalation you get some error messages like this:
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 5A9BF3BB4E5E17B5
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 3B22AB97AF1CDFA9
W: You may want to run apt-get update to correct these problems
To solve this problem, simply download launchpad-getkeys .deb manually:
Ubuntu 10.10 Maverick Meerkat
Ubuntu 10.04 Lucid Lynx
Ubuntu 9.10 Karmic Koala
Ubuntu 9.04 Jaunty Jackalope
Once installed, to import all the missing GPG keys for your PPAs, simply use the following command:
Linux terminal $:
sudo launchpad-getkeys
sudo launchpad-getkeys
Linux Command Line and Shell Scripting Bible
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