I have two Oracle version (8.1.6, 8.1.7) running on the same box Linux 6.2.

I already migrated the database to 8.1.7 now and everything work great. When I am trying to export the schema and it give me this error messages:

Export: Release - Production on Tue Jan 22 10:48:41 2002

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EXP-00056: ORACLE error 1034 encountered
ORA-01034: ORACLE not available
EXP-00005: all allowable logon attempts failed
EXP-00000: Export terminated unsuccessfully

Does Oracle try to use exp.exe on 8.1.7 to do an export ??? I even specified the right exp.exe on 8.1.7 to do an export but it still not working.

Please advise