Take a look at:

http://springdale.math.ias.edu/#Download

*Boot/PXE*


	i386 	x86_64
7.0 	​boot.iso 
<http://springdale.princeton.edu/data/puias/7.0/i386/os/images/boot.iso>
​pxeboot 
<http://springdale.princeton.edu/data/puias/7.0/i386/os/images/pxeboot/> 	 
​boot.iso 
<http://puias.princeton.edu/data/puias/7.0/x86_64/os/images/boot.iso>
​pxeboo 
<http://springdale.princeton.edu/data/puias/7.0/x86_64/os/images/pxeboot/>


Note that Princeton linux does have a port of EL7 to i386 (IA-32).  
However, you will need to find RPMs or build from source for this platform;
the Princeton list is at:


    Repositories

If you are only looking to install some rpms, you can download our 
repositories on your system.

  * YUM Repositories for PUIAS 6
    <http://springdale.math.ias.edu/wiki/YumRepositories6>
  * YUM Repositories for PUIAS 5
    <http://springdale.math.ias.edu/wiki/YumRepositories5>
  * YUM Repositories for PUIAS 2
    <http://springdale.math.ias.edu/wiki/YumRepositories2>

that does not seem to show PUIAS 7.

End Princeton.

I am in a similar, but not identical, situation.  I support a number of 
laptops with X86-64 processors that are running IA-32 mode environments 
(SL 6).  These need either to be replaced or to have increased 
provisioning (more RAM, larger capacity hard drives) to safely run a 
64-bit word length environment.   At the present, I do not have any 
grant funds that can be used for this purpose; to understand this 
situation, my university finds this a low priority; the priority of my 
university is to hire more administrators (and staff to support those 
administrators), and to engage in expensive eduspeak programs, whilst 
ever increasing class sizes and reducing real academic resources.

Yasha Karant

On 12/15/2014 02:29 AM, Keith Lofstrom wrote:
> I was sad to learn that there will not be a 32 bit version of
> SL7 / RHEL7 .  I run older T60 laptops with 3x4 aspect ratio
> screens, and have a stockpile of spares and screens and keyboards
> that should last a long time.  I dislike "runt screen" AKA wide
> screen displays.  However, my venerable laptops use 32 bit
> processors.
>
> I hope to have enough 3x4 goodness to last as long as I do, and
> machines that will keep working for my wife (and her business) who
> will likely outlive me.  However, Redhat stops providing security
> support of the 6 series of distros after 2023.  I love the SL
> community, and would love to keep upgrading SL distros forever,
> and also keep using the old 32 bit machines, but it appears that
> I must give up one or the other soon, or deal with some big
> changes when I no longer have the ability to adapt to them.
>
> Are there other distros with even longer LTS policies than SL and
> RHEL?  Is there some way to keep supporting SL6x with security
> updates long after RH stops providing them?  Some in our community
> may have built measurement systems around 32 bit CPUs that must
> keep collecting data far into the future - what is the plan?
>
> Keith
>