DB2安装报错

fzq10

小弟在IBMp520上安装DB2V9.2报如下错误
# ./db2_install
ERROR:
   Unable to determine AIX maintenance level.
   Check the following web site for the up-to-date system requirements
   of IBM DB2 9.5
   http://www.ibm.com/software/data/db2/udb/sysreqs.html

  Aborting the current installation ...
  Run installation with the option "-f sysreq" parameter to force the installation.
# oslevel -r
5300-05
# oslevel -s
5300-05-CSP-0000
请问各位牛人，该如何解决？