You can upgrade a DB2 product from the Try and Buy mode to a licensed version in two ways. You can use the command line utility called db2licm or use the License Center. The License Center is a built-in feature of the Control Center.
db2licm filename.lic
where filename.lic represents the name of the licensing file. For more information about the db2licm command, refer to the Command Reference.
To add a license using the command line:
db2licm path/filename.lic
License files are contained in the db2/license directory of the installation CD.
For more information about the db2licm command, refer to the Command Reference.