Cannot recompile x86_64 kernel on installed F9 i686

[Jarod Wilson]

On Monday 06 October 2008 04:23:12 Joshua C. wrote:
> I tried to recompile the x86_64 version of the F10beta kernel on my F9
> i686. And this is the error message I got
[...]
> scripts/mod/empty.c:1: error: code model 'kernel' not supported in the
> 32 bit mode
> scripts/mod/empty.c:1: sorry, unimplemented: 64-bit mode not compiled in
> make[2]: *** [scripts/mod/empty.o] Error 1
> make[1]: *** [scripts/mod] Error 2
> make[1]: *** Waiting for unfinished jobs....
> make: *** [scripts] Error 2
[...]
> Recompiling the i686 kernel works fine but not the x86_64. Tried also
> the lastes kernel in koji and got the same error. How to recompile it?

x86_64 is backwards-compatible with i686. i686 is not forwards-compatible with 
x86_64. Might be doable with a cross-compiler env., but certainly not doable 
the way you're trying to do it.

-- 
Jarod Wilson
jarod at redhat.com