In "Install MongoDB"

[j-i-m-s-t-e-r]

Get error below running "sudo apt-get install -y mongodb-org" :

"Reading package lists... Done
Building dependency tree
Reading state information... Done
The following package was automatically installed and is no longer required:
grub-pc-bin
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools
The following NEW packages will be installed:
mongodb-org mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools
0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.
Need to get 51.8 MB of archives.
After this operation, 215 MB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
mongodb-org-shell mongodb-org-server mongodb-org-mongos mongodb-org-tools mongodb-org
E: There were unauthenticated packages and -y was used without --allow-unauthenticated

I guess "--allow-unauthenticated" will work but at users own risk.

[vietpham6375]

the details for Mongodb are out of date and need to be updated (someone has already made a pull request)

1. wget -qO - https://www.mongodb.org/static/pgp/server-3.2.asc | sudo apt-key add -
2. echo "deb http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
3. sudo apt-get update
4. sudo apt-get install -y mongodb-org