I'm trying to install Docker on my workstation Ubuntu 14.04 LTS following : https://docs.docker.com/engine/installation/linux/ubuntulinux/
When I do :
sudo apt-get install linux-image-extra-$(uname -r)
It says "linux-image-extra-3.13.0-39-generic" is already up do date, but when I do :
sudo apt-get install linux-image-extra-virtual
It says (sorry it's in french) :
Les paquets suivants contiennent des dépendances non satisfaites : linux-image-extra-virtual : Dépend: linux-image-generic (= 188.8.131.52.28) mais 184.108.40.206.46 devra être installé E: Impossible de corriger les problèmes, des paquets défectueux sont en mode « garder en l'état ».
Google translator gives :
The following packages contain unsatisfied dependencies: linux-image-extra-virtual: Depends on: linux-image-generic (= 220.127.116.11.28) but will need to be installed 18.104.22.168.46 E: Unable to correct problems, defective packages are in "keep as is" mode.
EDIT 2 : the real error message is :
E: Unable to correct problems, you have held broken packages
which means if I understand linux-image-generic is not the version expected but can't be upgraded since it's in "keep as it is" mode.
What can I do to install Docker from there ?
EDIT : before installation, I've done :
sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade