现在Mac OS X中的Oracle数据库最新版本是10.2.0.4 （没有10.2.0.5更没有11g）。如果想给该版本数据库打上PSU补丁的时候，会遇到以下错误。

Running prerequisite checks...
Prerequisite check "CheckPatchApplicableOnCurrentPlatform" failed.
The details are:
Patch (  ) is not applicable on current platform.
Platform ID needed is : 46
Platform IDs supported by patch are: 293
UtilSession failed: Prerequisite check "CheckPatchApplicableOnCurrentPlatform" failed.

OPatch failed with error code 73

这个错误是由于Bug # 8647770引起的。解决方法如下：
1. 下载patch 8647770.
2. 安装补丁

$ export OPATCH_PLATFORM_ID=293
$ cd 8647770
$ opatch apply

安装完此补丁以后，再重新运行PSU Patch，就可以正常打上补丁了。