Corbin Bird wrote: > I don't think a straight 'drop-in/replacement' will boot. > > The CPU scheduler does change from 'fam10h' to 'fam15h'. > The '3DNow!' && 'enhanced 3DNow!' ( used in fam10h ) instructions are > dropped / removed in fam15h. > > Doing the 'emerge -e @world' with '-march=generic' is probably the only > guaranteed to work solution. > > If you take this route set the CPU_FLAGS_X86= to MMX, SSE, SSE2 with no > 3DNow!, enhanced 3DNow! ( gcc flags / CFLAGS -mno-3dnow, -mno-3dnowa ) > > Just remember to change the kernel configuration also. > > Reference Links : > https://en.wikipedia.org/wiki/Phenom_II > https://en.wikipedia.org/wiki/List_of_AMD_FX_microprocessors >
That's what I was curious about. From my understanding, while a CPU made by the same maker and has the same pin out, they are different inside as far as what instructions they run. I think I'll go the generic route, which is what I was looking for really, and change the CPU flags as well. I'll at least do a -e @system run which should get me a bootable OS. Once I install the CPU, I can reset back to old march setting and update the CPU flags to whatever cpuid2cpuflags shows for the new CPU and rebuild again. Sounds like I need to build a new kernel as well. I guess I could name one with FX in it to be able to tell it from the old one. I do mine manually anyway, except for the dracut thingy. Thanks much. Dale :-) :-)
