I have a server with CentOS 4.8 installed. The provided is rubbish, but there's only a few months left, and they're busy being sued by Chase bank, so I doubt I can get CentOS 5.

I wiped the server clean using Virtuozzo, and found that the default image is VERY empty. I even had to install yum myself.

I've reached the point where I want to install TomCat. I downloaded the Sun JRE as a .rpm.bin file, did chmod a+x and ran it. That produced a .rpm file, which I tried installing:

[root@host java]# rpm -Uvh jre-6u20-linux-i586.rpm 
Preparing...                ########################################### [100%]
   1:jre                    ########################################### [100%]
Unpacking JAR files...
    rt.jar...
    jsse.jar...
    charsets.jar...
    localedata.jar...
    plugin.jar...
    javaws.jar...
    deploy.jar...
error: %post(jre-1.6.0_20-fcs.i586) scriptlet failed, exit status 5
[root@host java]# rpm -evv jre-6u20-linux-i586.rpm 
D: opening  db environment /var/lib/rpm/Packages joinenv
D: opening  db index       /var/lib/rpm/Packages rdonly mode=0x0
D: locked   db index       /var/lib/rpm/Packages
D: opening  db index       /var/lib/rpm/Name rdonly mode=0x0
error: package jre-6u20-linux-i586.rpm is not installed
D: closed   db index       /var/lib/rpm/Name
D: closed   db index       /var/lib/rpm/Packages
D: closed   db environment /var/lib/rpm/Packages
[root@host java]# rpm -qi --scripts jre-6u20-linux-i586.rpm 
package jre-6u20-linux-i586.rpm is not installed
[root@host java]# 

I couldn't find any results on Google for any parts of that error message, and I have very little experience of rpm (I usually use Debian).

Is this a broken package, or am I missing something or some setting?