SQLPlus errors

Hello! I have just installed Oracle 9i Release 9.2.0.1.0. I am trying to get SQLPlus working on my database server but I have one little problem. Only the oracle user (who setup the software) can access SQLPlus with any Oracle user account to do any database functions BUT when someone other than the unix oracle user tries to use SQLPlus, as soon as they enter their Oracle user ID, they get a

    ORA-01034: ORACLE not available
    ORA-27121: unable to determine size of shared memory segment     Linux Error: 13: Permission denied
Now, I can only assume that the file system is restricting access to some file, hence the Linux Error, but even after I chmod 777 every file under the $ORACLE_HOME directory structure, I continue to get this error.

What am I doing wrong? Received on Sat Feb 22 2003 - 08:01:49 CST