https://linuxconfig.org/ethereum-mining-on-ubuntu-18-04-and-debian is old link I did type
sudo add-apt-repository ppa:ethereum/ethereum
sudo apt update
but when I type
sudo apt install ethereum
I get this
Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package ethereum
How can this be fixed!
It's was better to install Bitcoin Core 0.18.1 on Raspbian than trying Ethereum on Ubuntu 19.10! The 256GB is not enough to download the Bitcoin blockchain. I might have to go to 512GB if I had the chance for Bitcoin!
I did try typing
sudo add-apt-repository -y ppa:ethereum/ethereum
but that didn't help either.