To finish jobs, you should be root user su –i give root password - Install g++: apt-get install linux-headers-`uname -r` build-essential xinetd - Download plone unified installer from http://plone.org/products/plone. My Plone version is Plone-3.1.5.1-UnifiedInstaller.tar.gz - Unzip download file: tar -xvzf Plone-3.1.5.1-UnifiedInstaller.tar.gz - Go to Plone source folder cd Plone