tvn <[email protected]> writes:

> On Monday, July 23, 2012 11:53:39 AM UTC-4, Keshav Kini wrote:
>
>     tvn <[email protected]> writes:
>     > That's what I mean: my Debian OS is *NOT* 64 bit --  uname -a
>     *DOES
>     > NOT* tell you about the OS but rather the capability of the
>     machine
>     > hardware.  If the build script makes the same assumption and
>     attempts
>     > to build 64 bit packages based on uname's out then this should
>     be a
>     > bug -- as shown in my situation.
>    
>     `uname` output tells you about the target architecture the kernel
>     was
>     built for, not the capability of the machine hardware. It looks
>     to me
>     like you're running a 32-bit userland on top of a 64-bit kernel
>     (from
>     what little I know of such things). That is an unusual situation
>     afaik
>     and I wouldn't be surprised if Sage is buggy on such systems...
>    
>
>
> I don't think my situation is unusual as many people run 32 bit OS on
> 64 capable hardware because many legacy software are 32 bit.  In
> fact, I didn't even have to do any special configuration:  just grab
> the 32 bit Debian installation and install it directly on this
> machine.   Moreover,  I think the "recommended" Ubuntu version on its
> download page is 32 bit - regardless if your machine is capable of 64
> bit or not.

Certainly it's not unusual to run a 32-bit OS on x86-64 hardware. I
think most people also run their 32-bit OS with a 32-bit kernel,
though.

It's *really* strange to me that the standard 32-bit Debian installation
image would come with a 64-bit kernel, since that would be physically
impossible to run on a real 32-bit system, and the standard 32-bit
Debian installation image should obviously be able to run on a real
32-bit system.

-Keshav

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