The Smolt hardware collector will not send any data until you do so manually. To send your hardware profile to http://smolts.org, run the smoltSendProfile command. If you have installed the smolt-gui package, you can also start Smolt from the applications menu in Tools - System Tools. If you want to update your hardware profile automatically on a monthly basis, edit the file /etc/sysconfig/smolt and set ENABLE_MONTHLY_UPDATE=1