Hi, Finally I found the way how I should install it. The installation starts ok again as usual. I have set the environment variables TNS_ADMIN to point to the tnsnames.ora. from the env: TNS_ADMIN=/home/oracle/OraHome8.1.6/network/admin/tnsnames.ora But when the install goes on it asks for the sys passwd and the TNS names alias.. I don't know which but it's not accepted. The passwd ia correct because I just tested it. So the sys passwd should be ok. But What should be the TNS name? This is my tnsnames.ora where the TNS_ADMIN points: # TNSNAMES.ORA Configuration File:/home/oracle/OraHome8.1.6/network/admin/tnsnames.ora # Generated by Oracle configuration tools. EXTPROC_CONNECTION_DATA.LANGUAGEGALAXY.COM = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC)) ) (CONNECT_DATA = (SID = PLSExtProc) (PRESENTATION = RO) ) ) ENGLISH.LANGUAGEGALAXY.COM = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = szanna.languagegalaxy.com)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = english) ) ) webdb= (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = szanna.languagegalaxy.com)(PORT = 1521) ) (CONNECT_DATA = (SID = english) ) ) I tried webdb, ENGLISH.LANGUAGEGALAXY.COM, ENGLISH... I have no other guess... Any help would be really appreciated. BR, Istvan