if $ROOTCMD aptitude --help | grep -q safe-upgrade ; then
APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD aptitude -y safe-upgrade
else
APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD aptitude -y upgrade
fi
else
if $ROOTCMD aptitude --help | grep -q safe-upgrade ; then
APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD aptitude -y safe-upgrade
else
APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD aptitude -y upgrade
fi
else