Date: Sun, 31 Dec 2006 16:12:53 -0800 From: Oliver Iberien <odilist@sonic.net> To: Erik Trulsson <ertr1013@student.uu.se> Cc: freebsd-questions@freebsd.org Subject: Re: What is involved in switching from i386 to AMD64? Message-ID: <200612311612.54788.odilist@sonic.net> In-Reply-To: <20061231190520.GA19424@owl.midgard.homeip.net> References: <200612311040.38067.odilist@sonic.net> <20061231190520.GA19424@owl.midgard.homeip.net>
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On Sunday 31 December 2006 11:05, Erik Trulsson wrote: > On Sun, Dec 31, 2006 at 10:40:37AM -0800, Oliver Iberien wrote: > > Hi, > > > > What actually needs to be done when switching machine architectures? I am > > facing a motherboard/CPU upgrade following the demise of an Athlon+ > > setup. (I am running my FreeBSD drive in a P3 while trying to figure this > > out.) > > > > Replacing it with an oldish P4 would be easiest but they are rapidly > > becoming extinct. After much Googling I can't quite figure out what > > happens if I were to put the FreeBSD i386 HD into a 64-bit system. > > Nothing? Disaster? Do I totally have the wrong end of the stick? I'd be > > grateful for any advice. > > Since the AMD64 architecture is completely backwards-compatible with the > older i386 architecture, the i386 version of FreeBSD should work just fine > in the new system. Thanks very much for this. I have the impression from scanning the freebsd-amd64 archives that it is difficult to convert an existing system from i386 to AMD64, and probably not worth it. Do people have any opinions on this? Oliver
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