Pentaho CE Installation Questions

Hello everyone,

I am new with pentaho, I am a student trying to implement Pentaho solution to a research college project but I have two question with installation. I am using Ubuntu and Postgres

1. The installation manual set an user called pentaho on Linux but I didnt set it bucause I had trouble so I use my default account on ubuntu. I need to know if there is a future problem with it, because I did not follow the manual and I am using my ubuntu user.

2. When I am Initializing PostgreSQL BA Repository Database (Page 13 of Installation Manual) in point 3.g there is a script thay I need execute but I executed the command line and the file is not in the folder.
this script:

"\i /pentaho/server/biserver-ee/data/postgresql/pentaho_mart_postgresql.sql"

I swith for this in CE:


"\i /server/biserver-ce/data/postgresql/pentaho_mart_postgresql.sql"

So my questions are:
- Should this file be my DW script?
- There is a EE exclusive file?
- Where can I find this file?

I hope you can help me, I am new on BI and I am very exciting to learn a lot of this tool.