Move your Linux machine's BOINC data directory like this: 1. sudo service boinc-client stop 2. sudo mv /var/lib/boinc-client/* /path_to_new_dir/boinc-client/ 3. sudo rm -rf /var/lib/boinc-client 4. sudo ln -s /path_to_new_dir/boinc-client /var/lib/boinc-client 5. sudo service boinc-client start...