edite o /etc/apt/sources.list e adicione o seguinte:
deb http://apt.jolicloud.org robby main directory jolicloud
deb-src http://apt.jolicloud.org robby main directory jolicloud
execute estes comandos.
sudo aptitude update
sudo aptitude install -R jolicloud-poulsbo
sudo aptitude install -R linux-image-jolicloud linux-image-jolicloud-atom
sudo /etc/jolicloud-netbook-config.d/poulsbo.sh