Docker hello-world on Ubuntu - permission denied

Question

I\'m trying to get docker (v 1.8.2) to work on Ubuntu 14_04, (using the -g option in the docker config file - Ubuntu is on a USB key and I got errors pulling images without

Answer 1

On Ubuntu 14.04 I keep having those errors. Fortunately, I updated the OS to 16.04 as per instruction details from docker website

In Ubuntu 14.04 the way of installation leads to errors like above mentioned. Try this after uninstalling the current version and then

sudo apt-get install docker-ce

For checking run this, run the command docker run hello-world. If even after this, daemon error keep occurring, then refer to the official docker documentation