on linux 8, with oracle 8i one database created and running successfully. I wanted to create another database on same server. For this I created

1. a service as export ORACLE_SID ser.name.
2. Wrote a script to create database.
3. started Svrmgrl
4. Connect internal/oracle as sysdba.
5. issued command startup nomount pfile=name
6. receive an error message i.e.
ORA-01081 cannot start already-running ORACLE - shut it down first.

why ?

kindly note when I am doing above mentioned the first database is up and running fine.

Is it like, I have to shutdown first database and only then I can create 2nd database. ?

Kindly share ur knowledge.