今天升级一个Oracle 10g的集群环境到10.2.0.5，网上下载补丁包p8202632_10205_Linux-x86-64.zip,解压后安装执行，中途报错：
I/O ERROR cannt reading or opening file in /tmp/...../temp52
网上查资料如下：
：
a) Insufficient free space in the temporarydirectory.
b) Insufficient access rights on the temporary directory.
c) On Oracle 9.2.0.5 to 9.2.0.8, a bug like bug: 5614628.
d) Not using a (local) console.
e) Corrupted software set.
f) Setup of the Oracle software in the stage area on disk.
g) Wrong Unzip utility is used.
h) No execute permission on Unzip utility
i)Free space => 2Tb
j)During ftp from a Windows mounted DVD to an Unix system (unzipped directories),the new directories in the stage area on Unix are all in lowercase.
逐一验证，最后发现时zip包错误，看来以后下载文件后，最好checksum一下，以防万一
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