Install Signal Messaging Desktop on Ubuntu

Every knows that WhatsApp changes its End Users License Agreement (EULA) . Lots of people are worried about data privacy.

That is why I’m migrating to Signal Messaging. I installed Signal Desktop on Ubuntu but I faced small hiccup which I shared how to solve it.

Download Signal for desktop

Download it here: https://signal.org/en/download/#

and follow the given  instructions.

Can get the signing key from the error messageInstall Signal official public software signing key

wget -O- https://updates.signal.org/desktop/apt/keys.asc |\
  sudo apt-key add -

Add Signal repository to your list of repositories

echo "deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main" |\
  sudo tee -a /etc/apt/sources.list.d/signal-xenial.list

Update Ubuntu package database and install signal

sudo apt update && sudo apt install signal-desktop

If Installation error like me, add the signing key

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys [signing key]

//example
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32

Can get the signing key from the error message

Then run the command

Reinstall again after adding the signing key

 

Reference:

Fix apt-get update “the following signatures couldn’t be verified because the public key is not available”