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Dale wrote: |
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> Corbin Bird wrote: |
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>> I don't think a straight 'drop-in/replacement' will boot. |
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>> |
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>> The CPU scheduler does change from 'fam10h' to 'fam15h'. |
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>> The '3DNow!' && 'enhanced 3DNow!' ( used in fam10h ) instructions are |
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>> dropped / removed in fam15h. |
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>> |
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>> Doing the 'emerge -e @world' with '-march=generic' is probably the only |
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>> guaranteed to work solution. |
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>> |
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>> If you take this route set the CPU_FLAGS_X86= to MMX, SSE, SSE2 with no |
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>> 3DNow!, enhanced 3DNow! ( gcc flags / CFLAGS -mno-3dnow, -mno-3dnowa ) |
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>> |
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>> Just remember to change the kernel configuration also. |
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>> |
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>> Reference Links : |
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>> https://en.wikipedia.org/wiki/Phenom_II |
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>> https://en.wikipedia.org/wiki/List_of_AMD_FX_microprocessors |
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>> |
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> That's what I was curious about. From my understanding, while a CPU |
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> made by the same maker and has the same pin out, they are different |
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> inside as far as what instructions they run. I think I'll go the |
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> generic route, which is what I was looking for really, and change the |
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> CPU flags as well. I'll at least do a -e @system run which should get |
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> me a bootable OS. Once I install the CPU, I can reset back to old march |
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> setting and update the CPU flags to whatever cpuid2cpuflags shows for |
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> the new CPU and rebuild again. |
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> |
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> Sounds like I need to build a new kernel as well. I guess I could name |
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> one with FX in it to be able to tell it from the old one. I do mine |
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> manually anyway, except for the dracut thingy. |
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> |
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> Thanks much. |
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> |
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> Dale |
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> |
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> :-) :-) |
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> |
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Now this is odd. I changed the settings and ran emerge. I decided to |
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use -UDNa options to see if it would catch the changes. It did. Thing |
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is, outside a few video type packages, there were no packages to be |
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rebuilt. It seems very few packages actually notice those settings. |
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Given that, I just canceled the emerge since I can rebuild that after I |
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swap CPUs. I can deal with ffmpeg being recompiled after I swap CPUs. |
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My only question left, will those flags affect the kernel image itself? |
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I may just have to make sure my USB stick works. |
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|
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Dale |
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|
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:-) :-) |
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