home/user # apt-get upgrade -y
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages have been kept back:
  libpyside0.4 libsdl-mixer1.2 perl-base pyside-qt4-core
  pyside-qt4-gui pyside-qt4-maemo5
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.