Here is the log of the JDK RPM installation:

[root@localhost regular]# rpm -ivh jdk-1_5_0_14-linux-i586.rpm --prefix /xufei
Preparing... ########################################### [100%]
   1:jdk ########################################### [100%]
ln: creating symbolic link `/usr/java/jdk1.5.0_14' to `/xufei/jdk1.5.0_14': No
such file or directory
Error: unpack command could not be found. Please refer to the
TroubleShooting Section of the Installation Instructions on
the download page.
Please do not attempt to install this archive file.
error: %post(jdk-1.5.0_14-fcs.i586) scriptlet failed, exit status 2

#Uninstall logs:
[root@localhost egtc]# rpm -e jdk
touch: cannot touch `/usr/java/jdk1.5.0_14/lib/tools.pack': No such file or
directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/rt.pack': No such file or
directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/jsse.pack': No such file or
directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/charsets.pack': No such file
or directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/ext/localedata.pack': No
such file or directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/plugin.pack': No such file
or directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/javaws.pack': No such file
or directory
touch: cannot touch `/usr/java/jdk1.5.0_14/jre/lib/deploy.pack': No such file
or directory


Here is a JRE RPM installation log:

#Install logs:
[root@localhost egtc]# rpm -ivh jre-1_5_0_14-linux-i586.rpm --prefix /jre/
Preparing... ########################################### [100%]
   1:jre ########################################### [100%]
ln: creating symbolic link `/usr/java/jre1.5.0_14' to `/jre/jre1.5.0_14': No such file or directory
Error: unpack command could not be found. Please refer to the
TroubleShooting Section of the Installation Instructions on
the download page.
Please do not attempt to install this archive file.
error: %post(jre-1.5.0_14-fcs.i586) scriptlet failed, exit status 2