+
+ $ROOTCMD apt-get update
+ if [ -x $target/usr/bin/aptitude ] ; then
+ if $ROOTCMD aptitude --help | grep -q safe-upgrade ; then
+ $ROOTCMD aptitude -y safe-upgrade
+ else
+ $ROOTCMD aptitude -y upgrade
+ fi
+ else
+ $ROOTCMD apt-get -y upgrade
+ fi
+