AmigaOS 3.9 Install short :
Click Upgrade Icon Step 1 :
Insert your VALID AmigaOS 3.9 CD into UNIT 0!!! enter key and wait , for pre installing. Reboot.
Step 2 : Manual starting original Os 3.9 install.
Step 3: with AmigaOs 3.9 , Theme locale , and icon files added and some fixes for AmigaOS 3.9.