Hi Daniel
please let me know the possible solution in case of different OS & DB strategy for the source and target system.
You have to follow the SAP standard method Heterogeneous method (Source system Export & target system import method). Kindly refer the SAP system copy guide from below link from SAP Service market place
https://service.sap.com/guidefinder - Select the OS /DB , SAP version & Tasks
Regards
SS