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Accepted
john smith
Asked: 2015-11-08 11:17:24 +0800 CST

GPG Error Missing Signature [duplicate]

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When I do the command below:

sudo apt-get upgrade

At the bottom I get an error saying

W: GPG error: http://download.opensuse.org  Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8873E7BF70F1BBEA

How do I retrieve this key from the opensuse.org server? If I were to look on their website I won't be able to find the key. There are so many nested directories on the website, and I don't know where to look to find it. I don't even know what application or what update it's even for.

Update

I have followed the guides in the comments and it doesn't work. I moved my lists file, and created a new one when using apt-get update. I now have 15 PPA files, and 16 security files. After removing some of the other GPG keys, I now have even MORE errors when updating.

apt

1 Answers

  1. Best Answer

    You have to import the right key with the following commands:

    wget http://download.opensuse.org/repositories/home:osmc/xUbuntu_14.04/Release.key
sudo apt-key add - < Release.key
sudo apt-get update

    Why? That's why:

    The output of dpkg -l | awk '/^ii/ {system("apt-cache policy " $2)}' tells us that the repository has one package installed in your system:

    osmc-installer:
  Installed: 111
  Candidate: 111
  Version table:
 *** 111 0
        500 http://download.opensuse.org/repositories/home:/osmc/xUbuntu_14.04/  Packages
        100 /var/lib/dpkg/status

    And here are the install instructions for OSMC installer and how to import the key.

    If you don't need the OSMC installer, remove the package

    sudo apt-get remove osmc-installer

    find the repository

    grep -r 'download.opensuse.org' /etc/apt

    and remove the repository

    sudo rm /etc/apt/sources.list.d/osmc-installer.list*
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