I have two database on Sun solaris. When I try to mount open one DB1 it goes through fine. Opening another console and changing the ORACLE_SID, ORACLE_HOME as required for the DB2, when I try to mount open I get the following error message.

ORA-24323: value not allowed
ORA-24323: value not allowed

ORA-27146: post/wait initialization failed

I tried to shutdown DB1, started DB2 first, now it works fine...trying to start DB1 gives the same error message as above. I think the problem is with few init parameters....I couldn't find which. What are the other considerations I should have when using two database in the same machine?

Now I have the same ORACLE_HOME for both the database.

Thanks in advance for any reply.