Tour start here for a quick overview of the site help center detailed answers to any questions you might have meta discuss the workings and policies of this site. Apt-get update gpg key errors and fix march 17, 2009 / 13 comments / in configurations , shell , system administration , ubuntu / by dave running sudo apt-get upgrade, i started getting this error:. This kind of solution (apt-key) should be needed only for external repositories. ubuntu's own keys should come preloaded from ubuntu's initial installation, and then be upgraded securely as needed. so there's something else going on..
Sudo apt-key list sudo apt-key del [bad key] look at your keys and figure out which one or ones are bad and remove them, then try your apt-get update again.. Then try sudo apt-get update if you find the same error, solution 2: please execute the following command. apt-key adv --keyserver hkp://keys.gnupg.net --recv-keys 7d8d0bf6 then try sudo apt-get update if you find the same error, please choose another solution.. Sudo apt-get autoclean && sudo apt-get autoremove -y && sudo apt-get update the above command will clean up information / cache used by apt-* , remove packages that are not currently in use by existing software (perfectly safe as this command only selects software that isn't actually being used by current packages) and then runs the update.
