Mark A. Lewis wrote: > So, what is a "valid" 64bit CPU? I have a DEC Alpha in the basement that > is most certainly 64 bit, but can't install the i386 or x86_64 version > on it. How about Sparc or HP-UX boxes? Are they valid 64 bit CPUs? > I suspect he meant specifically x86_64... sure, there's lots of 64 bit processors that aren't x86 based, including Intel Itanium (ia64), DEC Alpha/AXP, Sun UltraSparc, HP PA-RISC, IBM Power4/5/6 and PowerPC, etc etc. There /are/ linux builds for most (all?) of these, but not RHEL/CentOS distributions.