Docker hello world not working

Question

I'm trying to start using Docker on my Linux Mint. I'm following the Hello World example, but it doesn't seem to work. Here is my log :

# uname -a
Linux abenoit-linux 3.8.0-31-generic #46-Ubuntu SMP Tue Sep 10 20:03:44 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

# dpkg -l | grep docker
ii  lxc-docker                                                  0.9.0                                  amd64        Linux container runtime
ii  lxc-docker-0.9.0                                            0.9.0                                  amd64        Linux container runtime

# docker info                                                                                                                                                                                                                                                  
Containers: 0
Images: 0
Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Dirs: 0
WARNING: No memory limit support
WARNING: No swap limit support

# docker pull busybox                                                                                                                                                                                                                                          
Pulling repository busybox
769b9341d937: Download complete 
511136ea3c5a: Download complete 
bf747efa0e2f: Download complete 
48e5f45168b9: Download complete 

# docker ps -a                                                                                                                                                                                                                                                 
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

# docker images                                                                                                                                                                                                                                                
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
busybox             latest              769b9341d937        6 weeks ago         2.489 MB

# docker run busybox /bin/echo hello world                                                                                                                                                                                                                     
# 

I can type anythin instead of "/bin/echo hello world", but I never get any output (even if the command is invalid).

Any idea what is wrong here ?

Answer 1

Just found the problem : I'm on Linux Mint where cgroup-lite is not installed by default. And when using apt-get install lxc-docker, it is only suggested and not required :

# apt-get install lxc-docker
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances       
Lecture des informations d'état... Fait
Les paquets supplémentaires suivants seront installés : 
  aufs-tools lxc-docker-0.9.0
Paquets suggérés :
  cgroup-lite
Les NOUVEAUX paquets suivants seront installés :
  aufs-tools lxc-docker lxc-docker-0.9.0

So you have to install it manually.