SWPM Netweaver 7.5 does not see Oracle installation

Dear experts,

I was installing NetWeaver 7.5 with Oracle as a database on a SUSE Linux Enterprise Server and during the "Execute Service" phase, I have followed the steps as described here:

The only difference is that I was only working using a terminal, so I ran "./RUNINSTALLER -silent". After the installation, I was able to run the two additional scripts:

1. /oracle/oraInventory/orainstRoot.sh
2. /oracle/ORC/12102/root.sh

By going to the next step, I am prompted with this:

Trying to run the command again prompts with an error, saying that the installation might be confliting.

It's my first time installing Netweaver so please, if you need further details ask me.

Thanks and best regards,

Federico