Am 29.06.2011 22:01, schrieb Jacob Carlborg: > On 2011-06-29 18:59, Russel Winder wrote: >> On Wed, 2011-06-29 at 08:54 -0700, Sean Kelly wrote: >>> I think the original Core 2 Duo was 32-bit. People still use these at >>> work, but they're getting rather long in the tooth. Most of them have >>> failed already (mine did). >> >> Core Duo was 32-bit, Core 2 Duo was 64-bit. (*) >> >>> Sent from my iPhone >>> >>> On Jun 28, 2011, at 3:27 PM, Walter >>> Bright<[email protected]> wrote: >>> >>>> On 6/28/2011 3:22 PM, Nick Sabalausky wrote: >>>>> OTOH, It seems to be pretty typical, standard, accepted practice in >>>>> the >>>>> Apple world for older machines to get abandoned *very* quickly, so >>>>> maybe >>>>> 32-bit is already needless on Mac? >>>> >>>> Are there any 32 bit x86 Mac machines? My several-years-old mac mini >>>> is 64 bits. >> >> (*) But just because you have a 64-bit processor doesn't mean you can >> run a 64-bit OS. Mac OS X selects whether to be 32-bit or 64-bit not on >> the word width processor, but on the word width of the boot PROM. So my >> Core Duo Mac Mini is happily 32-bit, but my Core 2 Duo MacBook has a >> hell of a time since Mac OS X says 32-bit and the processor says 64-bit. >> One can only assume Apple assume that anything over 3 years old is >> broken and already disposed of to be replaced by a new Apple product. >> Rant elided. I'll stick with Debian Testing for most of my work. > > Yes exactly. Actually very few macs, what I've heard, run the kernel in > 64bit. >
So is a 32bit kernel just default or can't you even upgrade to 64bit OSX if you want to with these older Macs (with 64bit CPUs)? Sounds like a really broken mess.. probably the DMD for OSX should stick to 32bit or universal binaries. Cheers, - Daniel
