求助各位大侠，关于oracle 9.2 for aix 5.2 的安装问题

antsxr

我在AIX上用oracle提供的InstallPrep.sh工具，检测安装oracle之前需准备什么，系统产生报告文件InstallPrep.err如下：

ALERT- /tmp space = 61 Mb, please increase /tmp to at least 400 Mb
ALERT-  You must increase your swap space from 512  Mb to at least 1Gb.
WARNING-  ar not found in /bin directory but was found in '/usr/bin/ar'
WARNING-  ld not found in /bin directory but was found in '/usr/bin/ld'
WARNING-  nm not found in /bin directory but was found in '/usr/bin/nm'
WARNING-  make not found in /bin directory but was found in '/usr/bin/make'
ALERT-  Increase the ulimit(FILE) to unlimited from the present 2097151
ALERT-  Increase the ulimit(DATA) to unlimited from the present 131072
ALERT-  Increase the ulimit(STACK) to unlimited from the present 32768
ALERT-  Increase the ulimit(NOFILES) to unlimited from the present 2000
ALERT-  Increase the ulimit(MEMORY) to unlimited from the present 32768
!!SHOWSTOPPER!! The user orains does not have execute permission for /usr/sbin/bootinfo to determine if your box is booted in 32 or 64 , please have your System Administrator add execute priviledge to /usr/sbin/bootinfo or have them run '/usr/sbin/bootinfo -y' to see what mode you are in
ALERT-  The bos.adt.libm package needs to be installed
Please review this report and resolve all ALERTS or WARNINGs before attempting to install the Oracle Database Software
                                WARNING
There was a SHOWSTOPPER issue with either the type of media you are using or the certification of the 920 being installed on  and the installation is not supported by Oracle.  Do not proceed with the installation of Oracle on your server, contact Oracle Support if you need further clarification.  Any ALERTs or WARNINGs can be ignored due to the SHOWSTOPPER issue

我参考了一些高手的文章，可以解决部分问题，可我不知道到底是应该修改软极限还是硬极限，也不知道修改设置极限是不是只要用ulimit命令就可以在系统重启后仍有效。
还有就是对于文件提示的WARNING-  ar not found in /bin directory but was found in '/usr/bin/ar'等警告信息，我需不需要采取什么调整措施呢？
请不吝指教，这里先谢了。