Sorry, i solved this one on my own..

Problem Description
-------------------

You are trying to start the installer for 8.1.5 on Linux by either running
/<cdrom>/runInstaller or /<cdrom>/install/linux/runIns.sh.

You receive the following error:

/usr/local/jre/bin.. /bin/checkVersions: /tmp/ldd.out.3321: Permission denied


Solution Description
--------------------

This error occurs due to the libc version of the JRE (Java Runtime Environment)
being used on a glibc based Linux distribution.

In other words, when you downloaded the JRE 116_V5 from [url]http://www.blackdown.org[/url], you
chose the libc verion of the runtime instead of the glibc. Most of the newer
Linux distributions have converted from the older libc standard to the glibc
libraries.

To correct this, you will need to download the glibc version of the JRE
(example:
[url]ftp://iodynamics.com/pub/mirror/linux-jdk/JDK-1.1.6/i386/glibc/v5/[/url]
versus
[url]ftp://iodynamics.com/pub/mirror/linux-jdk/JDK-1.1.6/i386/libc5/v5/[/url]

and recreate the softlink from /usr/local/jre to the correct glibc JRE.