linux-kernel - Re: how to tell i386 from x86-64 kernel

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Date:	Sat, 9 Feb 2008 21:13:43 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Alejandro Riveira Fernández 
	<ariveira@...il.com>
cc:	Ray Lee <ray-lk@...rabbit.org>, Pavel Machek <pavel@....cz>,
	kernel list <linux-kernel@...r.kernel.org>, jikos@...e.cz
Subject: Re: how to tell i386 from x86-64 kernel


On Feb 1 2008 12:53, Alejandro Riveira Fernández wrote:
>> 
>> # uname -m
>> I won't tell you.
>> # linux32 uname -m
>> i686
>
> Ubuntu 7.10 64 bit userland 2.6.24
>
>$ uname -m
>x86_64
>$ linux32 uname -m
>i686

What I am saying is that uname(2) does not reliably tell you whether you 
have a 64-bit kernel underneath unless you have other sources of 
information.
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