I had to install Oracle 11g XE on my laptop under Windows 7. So I follow this Tutorial. The installation didn't even fail once, and seem to be OK. But every time i tried to connect to it with SQLPLUS, it failed with ORA-12638 error...
SQL> connect
Enter user-name: system
Enter password:
ERROR:
ORA-12638: Credential retrieval failed
After some search I found this Web Site and attempt to resolve my problem with the second solution. But then I get another kind of error : ORA-01034 and ORA-27101...
SQL> connect
Enter user-name: system
Enter password:
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 Serial number: 0
It seem that my database didn't even exist to begin with...
And if looking in [...]\oraclexe\app\oracle\oradata\XE, there is no files.
When looking the logs at [...]\oraclexe\app\oracle\product\11.2.0\server\config\log, I found that during the installation process, the application wasn't even able to connect to the database created.
Example in the file : postDBCreation.log
SQL> connect "SYS"/"&&sysPassword" as SYSDBA
ERROR:
ORA-12638: Credential retrieval failed
[...]
SQL> startup ;
ORA-12638: Credential retrieval failed
SQL> select 'utl_recomp_begin: ' || to_char(sysdate, 'HH:MI:SS') from dual;
SP2-0640: Not connected
SQL> execute utl_recomp.recomp_serial();
SP2-0640: Not connected
Another file in the same directory : CloneRmanRestore.log
SQL> startup nomount pfile="D:\Applications\oraclexe\app\oracle\product\11.2.0\server\config\scripts\init.ora";
ORA-12638: Credential retrieval failed
SQL> @D:\Applications\oraclexe\app\oracle\product\11.2.0\server\config\scripts\rmanRestoreDatafiles.sql;
SQL> set echo off;
SP2-0640: Not connected
SP2-0640: Not connected
SP2-0640: Not connected
ERROR:
ORA-12638: Credential retrieval failed
I am log as a domain user with administration right on the laptop, so why does the installation fail without putting an explicit error ? And how to ensure that the installation of Oracle 11g XE on my laptop work ?