How to troubleshoot ORA-12638 errors when installing oracle in Windows

I don't want to encounter any problems.

1. Install oracle9201 Software

2. After oracle9205 patchset is installed

3. Dbca creates a database, encountered a ORA-12638 error during creation, credential retrieval failed, database creation failed

4. Since the creation script is saved, we decided to execute it using the script to see where the error is.

5. Dbca first deleted the database that was just created

6. Run the script and report TNS-adapter error when connect system/change_on_install as sysdba.

7. Check the script and find that there is no service creation statement, instead:

[Ljava. Lang. String; @ 29452c
[Ljava. Lang. String; @ 294553

These two rows.

Delete the two rows as follows:

D:/Oracle/ora92/bin/oradim.exe-New-Sid ctsdbhis-startmode Manual
D:/Oracle/ora92/bin/oradim.exe-edit-Sid ctsdbhis-startmode A-shutmode I-shuttype srvc

This problem is somewhat strange. The execution of these two statements in dbca Should Be normal. So why are there problems when dbca saves the creation script? It should be a bug of 9205.

Speaking of this, if you create a database in oracle9205 for Linux, dbca will always report an error when creating a data dictionary. If you ignore the error, it will continue to work normally, and the database will not see any problems. However, it seems that I have never mentioned this problem before. Haha, strange.

8. Re-run the BAT file, this time still in connect system/change_on_install as sysdba error reported, this time is the ORA-12638 Error

9. Ask the customer if the server is in the domain.

10. Then, replace sqlnet. authentication_services = (ETS) in the sqlnet. ora file with sqlnet. authentication_services = (none)

11. Run the creation script again, OK, and run normally.