How to fix the Ubuntu GPG Error BADSIG

If you are seeing Ubuntu GPG Error BADSIG use the one of the following methods to fix

Error Message

W: GPG error: http://archive.canonical.com intrepid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key

Method 1

Try to run the following comamnds from terminal

$ sudo -i

# apt-get clean

# cd /var/lib/apt

# mv lists lists.old

# mkdir -p lists/partial

# apt-get clean

# apt-get update

Method 2

Try to run the following comamnds from terminal

sudo aptitude -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update

sudo apt-get update

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35 thoughts on “How to fix the Ubuntu GPG Error BADSIG

  1. Method 1= failure
    Methos 2= failure sudo: aptitude: command not found
    GPG-error: http://www.openprinting.org lsb3.1 Release: : BADSIG 7A4B44C2D2A2203E OpenPrinting (OpenPrinting Test Key)

    sudo aptitude -o Acquire::http::No-Cache=True -o Acquire::BrokenProxy=true update
    sudo: aptitude: command not found

    [Reply]

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