How do I determine if the hardware of redhat server is 64 or 32 bit

[Allen K. Smith]

x86info might get you what you need.

Or looking through dmesg or /proc/cpuinfo. 

You should be able to at least cross-reference the CPU model detected with the list on intels/amds site.

I had a 64 bit box running a 32 bit OS, but I recently upgraded, so I can't check for you.

-Allen

On Wednesday 05 April 2006 04:47, Dag Wieers wrote:
> On Wed, 5 Apr 2006, vipin sagar wrote:
> 
> > Is it 64 or 32 bit ..??
> > 
> > When I heard this Q for the second time today at my office?
> > I thought of writing this a mail to my dear colleagues? :)
> > 
> > http://vipinsagar.be/2005/12<http://vipinsagar.be/2005/12/23/is-it-64-or-32-bit.html>
> > /23/is-it-64-or-32-bit.html<http://vipinsagar.be/2005/12/23/is-it-64-or-32-bit.html>
> 
> The problem is that uname will report what the operating systems is, not 
> what the hardware is. This is what I get when I run a 32bit rhel3as on 
> a 64bit blade:
> 
> 	[root at xxxxxxx root]# uname -a
> 	Linux xxxxxxx 2.4.21-40.ELsmp #1 SMP Thu Feb 2 22:22:39 EST 2006 i686 i686 i386 GNU/Linux
> 
> 	[root at xxxxxxx root]# dmidecode | grep Product
>                 Product Name: ProLiant BL20p G
> 
> 	[root at xxxxxxx root]# lspci -v | grep 64-bit
> 	00:1c.0 PCI bridge: Intel Corporation 6300ESB 64-bit PCI-X Bridge (rev 02) (prog-if 00 [Normal decode])
> 	        Memory at fdef0000 (64-bit, non-prefetchable) [size=64K]
> 	        Memory at fdee0000 (64-bit, non-prefetchable) [size=8K]
> 	        Memory at fde80000 (64-bit, non-prefetchable) [size=256K]
> 	        Memory at fdff0000 (64-bit, non-prefetchable) [size=64K]
> 	        Memory at fdfe0000 (64-bit, non-prefetchable) [size=64K]
> 	        Memory at fdfd0000 (64-bit, non-prefetchable) [size=64K]
> 
> I had hoped that some of the CPU flags would identify what I was looking 
> for, but sadly I know too little about the subject. It would be nice to 
> have a tool that can identify this without any doubt.
> 
> Kind regards,
> --   dag wieers,  dag at wieers.com,  http://dag.wieers.com/   --
> [all I want is a warm bed and a kind word and unlimited power]
>