Oracle 10 Gb cluster upgrade failed

Download the patch package p8202632_10205_linux-x86-64.zip from the cluster environment 10.2.0.5 or above this day. decompress the package and install the package. An error is reported during the process:

I/O ERROR cannt reading or opening file in/tmp/.../temp52

The online query information is as follows:

According to the description of MOS, this error may be caused by the following reasons:

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) initialize upted 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 => 2 Tb
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.

Verify one by one, and finally find the zip package error. It seems that after downloading the file, it is best to checksum it, just in case