(1)
vm with dynamic allocaded RAM
sudo apt upgrade => seems that this upgraded too much => no space left on device
(2)
second try, new plain Ubuntu VM
did not use sudo apt upgrade
sudo apt install docker.io Reading package lists... Done Building dependency tree... Done Reading state information... Done Package [docker.io](http://docker.io/) is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package '[docker.io](http://docker.io/)' has no installation candidate
=>sudo snap install docker installed docker
tested it with docker -v
(1) vm with dynamic allocaded RAM sudo apt upgrade => seems that this upgraded too much => no space left on device
(2) second try, new plain Ubuntu VM did not use sudo apt upgrade
sudo apt install docker.io
Reading package lists... Done Building dependency tree... Done Reading state information... Done Package [docker.io](http://docker.io/) is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package '[docker.io](http://docker.io/)' has no installation candidate=>sudo snap install docker installed docker tested it with docker -v