Change CPU

Paul B Mahol onemda at
Sat Sep 25 15:44:09 UTC 2010

On 9/25/10, Jon Otterholm <jon.otterholm at> wrote:
> Hi.
> I am going to upgrade my CPU on a system that I compiled both world and
> kernel on. The current CPU is Core i5-670 and I'm changing to Xeon
> X3470. Will I be able to boot my system or has GCC specific flags for i5
> that won't work with X3470?
> Can I prepare the system in any way to make it boot using the new CPU?

If you never used any flags like CPUTYPE or similar you are pretty safe.

But some ports/programs override such stuff, for example disabling
runtime CPU detection.....

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