Aix 6.1 下sybase12.5 不能正常安装，求高人指点

Question

操作系统版本：
# oslevel -r
6100-03

Java版本：
# java -version
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build pap32dev-20081129 (SR9-0 ))
IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 AIX ppc-32 j9vmap3223-20081129 (JIT enabled)
J9VM - 20081126_26240_bHdSMr
JIT  - 20081112_1511ifx1_r8
GC   - 200811_07)
JCL  - 20081129

查看安装了的JDK：
# lslpp -l | grep Java
  Java5.sdk                5.0.0.225  COMMITTED  Java SDK 32-bit
  Java5_64.sdk             5.0.0.225  COMMITTED  Java SDK 64-bit
  Java5.sdk                5.0.0.225  COMMITTED  Java SDK 32-bit
  Java5_64.sdk             5.0.0.225  COMMITTED  Java SDK 64-bit

Sybase版本：12.5

启动安装程序后提示错误
$ ./setup
InstallShield Wizard

Initializing InstallShield Wizard...

Searching for Java(tm) Virtual Machine...
...................A suitable JVM could not be found. Please run the program again using the option -is:javahome <JAVA HOME DIR>

Answer 1

12.5很老的，你查一下JAVA要求，或者先设置下JAVA_HOME为现在的JDK5的试试

Answer 2

安装问题解决了，换了个安装介质后可以安装。。
在选择安装目录时出现错误提示：
you have chosen to install into an existing directory .any older versions of the products you  choose to install that are detected in this directory will be replaced do you want continue with installation into this directory?
选择yes后提示：
the installer can't find any sybase adaptive server enterprise suite installed products in ''/sybase/sybase" or any other directories. this update can only be installed to an existing installation

Answer 3

你第二次不是安装包吧，看样子是个补丁更新包{:3_202:}

Answer 4

this update can only be installed to an existing installation 估计是补丁包