openbravo安装中的tomcat 操作系统权限问题

daitoupipi

OS: Ubuntu 9.10
ERP： Openbravo ERP 2.5

本人系openbravo入门，按照openbravo wiki上面的安装说明安装openbravo erp 2.5总体很顺利 但就是有一个部分不清楚到底该怎么弄（奇怪的是没有做这个部分的工作 整个安装也完成了 Openbravo也能跑起来，于是怀疑是不是还是有某个暗藏问题潜伏中...）,各位看官若能指点一二不甚感激。


Openbravo erp 2.50 环境安装说明
http://wiki.openbravo.com/wiki/E ... missions_for_Tomcat有如下描述

  Operating system permissions for Tomcat
UNIX based operating systems use different system users to run their processes and services. Tomcat usually has its own tomcat user, and a command line and task is run by a normal user, e.g. openbravo. Since the introduction of the modularity feature in version 2.50, it is necessary to allow tomcat to write in the root directory of the Openbravo ERP installation. Conversely, the openbravo user requires write permissions in the Tomcat webapps directory.

• Change the default file permissions for the user running the Ant tasks, e.g. openbravo. Assuming you are using Bash as your shell, append the following line to the /home/openbravo/.bashrc file:umask 002
• Add openbravo to the tomcat group:gpasswd -a openbravo tomcat
• Add tomcat to the openbravo group:gpasswd -a tomcat openbravo

我有几个问题：
Question 1：第一个操作是在什么时候进行（在安装openbravo-erp 2.5之前还是之后？/home/openbravo/.bashrc这个文件在什么时候存在？既然是append，是不是说这个操作应该在安装好openbravo-erp 2.5之后进行呢？可是我安装了openbravo-erp之后也没有看到这个文件

Question 2：第二和第三个操作中的 "openbravo"/"tomcat" 是ubuntu系统中的组名还是用户名？ 或者组名用户名都是同一个？在我安装好的系统中有openbravo这个组 tomcat是没有的 tomcat6 倒是有一个 对应的操作是不是应该如下呢？
gpasswd -a openbravo tomcat6
gpasswd -a tomcat6 openbravo

bl_yang1027

问 OpenbravoERP-2.50MP5-x86.qemu-parallels.zip  解压 openbroavoERP-2.5mp5-x86.hdd你是下一不是咋样做的