apt-get update "The following signatures were invalid..."

[vusra]

Some don't have curl  and need wget

Code:

wget -O - repo.mobian.org/mobian.gpg.key | sudo apt-key add -

Professional tip, use tor

Code:

sudo apt install tor

with curl

Code:

torify curl -s https://repo.mobian.org/mobian.gpg | sudo tee /etc/apt/trusted.gpg.d/mobian.gpg

or wget

Code:

torify wget -O - repo.mobian.org/mobian.gpg.key | sudo apt-key add -