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Date:      Thu, 28 Jun 2007 17:02:02 +0100
From:      RW <fbsd06@mlists.homeunix.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Upgrading from an old athlon to a new 64 bit one.
Message-ID:  <20070628170202.43e64182@gumby.homeunix.com.>
In-Reply-To: <20070628101239.6fs4qrpz8k8kkosw@intranet.unixmania.com>
References:  <20070627145452.ytifppt70oc480s8@intranet.unixmania.com> <20070628011057.5a0d90b5@gumby.homeunix.com.> <20070628101239.6fs4qrpz8k8kkosw@intranet.unixmania.com>

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On Thu, 28 Jun 2007 10:12:39 -0500
eculp@unixmania.com wrote:

 
> What I am trying to do is compile an amd64 kernel, install it and
> see what happens ;) I can always go back to the generic kernel
> compiled in sys/i386.

amd64 and i386 are different platforms in the same sense that sparc64
and ppc are different platforms. An AMD 64 is not back-compatible to
pentium pro code  when it's in 64-bit mode. Whilst 32-bit binaries can
be run on the amd64 platform, they need special handling, you can't
just mix-and-match world and kernel platforms.



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