Hi, I am installing Oracle grid and Oracle database 18.104.22.168.0 64 bit on Redhat linux 6.4 64 bit box for the production environment. The document from Oracle states that some i686 linux library is required for the linux box. And I already get this library for the linux box. But during installation, the Oracle software checks system requirement and there are some failed requirements as the images below: And my questions are: Can i686 libary is compatible back to i386 library? If I ignore the failed requirements, and in the future, is my production environment reliable and stable? Thanks.