David Kirkby <[email protected]> writes:

> On 23 July 2012 16:40, tvn <[email protected]> wrote:
>>
>> 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.
>
>
> I don't know how uname is implemented in Linux, but according to
> POSIX, the -m option gives the hardware. The -a option specifies
> several options, including the -m. So it should give the hardware, and
> not the software

A breakdown of the uname output:

Linux wooly 2.6.32-5-amd64 #1 SMP Sun May 6 05:12:07 UTC 2012 x86_64 GNU/Linux
-s    -n    -r             -v                                 -m     -o

I think what we're mostly talking about is the -r output, not the -m
output. The -r output indicates the kernel was built for the amd64
architecture and is thus a 64-bit kernel. This is of course
Linux-specific, since the Linux kernel build process determines the
string "2.6.32-5-amd64" which is then embedded in the built kernel.

-Keshav

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