[ubuntu-uk] uname -a for 32 bit os on 64 bit cpu

[Juan J. Martínez]

On Mon, 2011-11-14 at 17:53 +0000, John Levin wrote:
> Hi all,
> 
> I'm writing a bit of documentation, and am having trouble with uname. 
> What does uname -a produce for a 32 bit operating system running on a 64 
> bit cpu? If anyone is running such a system, if they could cut & paste 
> the output, I'd be very much obliged.
> 
> PS: Thanks to Alan Lord & Simon Greenwood for their replies to my 
> question (from ages ago) about installing non-deb apps. I was having a 
> terminology problem!

$ uname -a
Linux vortex.usebox.net 3.1.0-7.fc16.i686 #1 SMP Tue Nov 1 21:00:16 UTC
2011 i686 i686 i386 GNU/Linux

I have less than 4GB of RAM, so I didn't bother running a 64 bits
system.

If you want to know if a CPU is 64bits no matter which kernel is
running, look for "lm" in the CPU flags in /proc/cpuinfo, or try with
lscpu:

$ lscpu 
Architecture:          i686
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) per core:    2
Core(s) per socket:    2
Socket(s):             1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 37
Stepping:              5
CPU MHz:               2394.000
BogoMIPS:              4799.84
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              3072K

Regards,

Juan

-- 
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