I just took over this database about 2 weeks ago and it's been a big mess. Any way, I have a quick question, I try to bounce this database but I have no password for INTERNAL when I tried to log in through SVRMGRL. this is Oracle 8.1.6.0.0

I have the password for SYSTEM so I tried to log in as SYSTEM from SVRMGRL and I tried to shutdown the database and it's telling me that Insufficient privileges.

Please let me know any other way to shutdown this database and startup.

Thanks