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Re: Sarge and Athlon 64



On Wednesday, 12.07.2006 at 16:20 -0500, Hugo Vanwoerkom wrote:

> >>>>I am interested in obtaining a new motherboard and 
> >>>>CPU. The current CPU is a Pentium III and runs Debian
> >>>>Sarge (kernel 2.4.27-3-686). I am thinking of getting
> >>>>an Athlon 64 as the new CPU. 
> >>>>
> >>>>Does anyone please know what updates would be needed
> >>>>to the current kernel in order to use the Athlon 64 ?
> >>>>I would obviously like to still use all my current 32
> >>>>bit software and data.
> >>>The simplest option is to just install a 2.6.x-series amd64 kernel and
> >>>keep your 32-bit system.  Unless you "need" the extra facilities which
> >>>64-bit systems give you, you will find the whole setup much simpler just
> >>>doing this.  No faffing about with chroots either :-)
> >>by "just install a 2.6.x-series amd64 kernel" do you mean that if you 
> >>boot a 64bit kernel, you can run a 32bit system?
> >
> >Yes.  Specifically, you install (or retain) a full 32-bit system, but
> >install a new kernel, which happens to be amd64.
> >
> >The "amd64 kernel with 32-bit userspace" approach is not uncommon.
> >
> 
> I have not googled this, but if I roll my own kernel, what options make 
> it "amd64"?

Just set the appropriate processor type (it's labelled
'Opteron/Athlon64' or something similar).

Dave.
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