Most current 64bit linux systems will run 32bit applications and some 32bit drivers just fine, however some drivers like this one are probably trying to load or link to 32-bit system libraries which in some cases are in /usr/lib32, where /usr/lib is the 64 bit repository, so when it tries to get a 32-bit library from /usr/lib, it finds the 64-bit versions. Since the installation script checks for the machine type (uname --machine), if finds AMD64 or x86_64 instead of i386 and figures it cannot go further without problems. You might be able to edit the installation script to fix this, assuming you have a reasonable knowledge of shell programming. FWIW, Red Hat Enterprise Linux (and derivatives such as CentOS) put 32bit libraries in /usr/lib, and 64bit ones in /usr/lib64, for just the reasons I explained above.