amd64 bit chips

[Ed Hill]

On Mon, 2005-10-17 at 15:55 -0700, Kenneth Porter wrote:
> --On Monday, October 17, 2005 10:39 PM +0100 John Devine 
> <john at johndevine.co.uk> wrote:
> 
> > Is fedora a full 64 bit OS yet?  Will it run 64 bit on an amd 64 bit
> > system?
> 
> I'm running a triple-boot system with WinXP64, Fedora Core 4 i386 (32-bit), 
> and FC4 x86_64 (64-bit). The last is mostly for playing with 64-bits when 
> building apps, which as a rule want to be built "native". The 64-bit build 
> will run 32-bit apps, but it's harder to build them there.

Hi Kenneth,

Did you know that, when developing user-space applications, there is
almost *never* a need to reboot to use the i386 and x86_64 versions of
FC-4?  On x86_64 hardware, you can readily create chroot-ed environments
by hand using old tricks such as:

  http://www.tldp.org/HOWTO/Multi-Distro-Dev/

that will allow you to build i386 applications within "pristine" i386
FC-4 installs.  Neat, huh?

The "mock" ("yum install mock") and "mach" programs

  http://thomas.apestaart.org/projects/mach/

are two examples of convenient setups for building RPMs that take
advantage of this neat chroot feature.

Ed

-- 
Edward H. Hill III, PhD
office:  MIT Dept. of EAPS;  Rm 54-1424;  77 Massachusetts Ave.
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