MongoDB GPG - Invalid Signatures

Question

I\'m installing MongoDB on an Ubuntu 14.04 machine, using the instructions at: https://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/

So I run:

Answer 1

I also faced this issue when installing MongoDB 3.2 on my ubuntu 16.04 using the below commands. The below solution is provided as the question related to the v3.2 installation of MongoDB

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
echo "deb http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
sudo apt-get update

After running the above update command i found the following warnings

W: GPG error: http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.2 Release: The following signatures were invalid: KEYEXPIRED 1507497109
W: The repository 'http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.2 Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

On further investigating using the below command to list all the keys

sudo apt-key list

It shows that the current key is expired on 2017-10-08

pub   4096R/EA312927 2015-10-09 [expired: 2017-10-08]
uid                  MongoDB 3.2 Release Signing Key 

This also made sense as the MongoDB Current Stable Release is now (3.4.9).

To fix the issue first we make a small cleanup (optional)

1. we remove the old key added

   sudo apt-key list // List all keys

   sudo apt-key del EA312927 // Find the uid of the key to be deleted

   apt-key list | grep Mongodb // Verify if its deleted

2. Now we remove the MongoDB repo added in /etc/apt/sources.list.d

   sudo rm /etc/apt/sources.list.d/mongodb*.list

3. Now we install the latest stable version of MongoDB(3.4.9) using below commands

Import the Public Key used by the Ubuntu Package Manager

apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6

Create a file list for mongoDB to fetch the current repository

echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-3.4.list

Install MongoDB

sudo apt-get update
sudo apt-get install mongodb-org