View Full Version : is this x86_64?
8th October 2004, 09:34 PM
We've got a colocated Dual AMD Opteron Server on which Fedora Core 2 was installed by our vendor. I'd like to confirm that they installed the x86_64 version but so far I've only been able to see that:
OS = Fedora Core release 2 (Tettnang)
Version = Linux version 2.6.8-1.521smp (email@example.com)
(gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)) #1 SMP
Mon Aug 16 09:25:06 EDT 2004
Is there a simple way to check that this really is the 64 bit version fo Fedora Core 2?
8th October 2004, 10:03 PM
try "uname -a" in a terminal
8th October 2004, 10:11 PM
Thanks, Emily. uname -a gives:
>Linux gold.sightsoftware.com 2.6.8-1.521smp #1 SMP Mon Aug 16 09:25:06 EDT 2004 i686 athlon i386 GNU/Linux
but I'm not sure how to interpret this. I don't see anything suggesting 64 bit here and the "athlon" is not what I would expect. Can you tell me what I should get with this command if x86_64 were installed?
8th October 2004, 10:15 PM
i686 athlon i386 GNU/Linux
i686 is x86_64. I'm not sure, why there is also an i386, because this is the normal 32bit architecture.
8th October 2004, 10:23 PM
when i run uname -a on my home machine which is an AMD Athlon(TM) XP1900+ with the 32 bit version of Fedora Core 2 installed, I get:
>Linux hawkins 2.6.8-1.521 #1 Mon Aug 16 09:01:18 EDT 2004 i686 athlon i386 GNU/Linux
which only differs from the above in the "smp" so the i686 can't mean x86_64, can it?
8th October 2004, 10:32 PM
i686 is NOT x86_64
rpm -qa | grep kernel
and tell what it tells
8th October 2004, 10:38 PM
>rpm -qa | grep kernel
gives the following:
8th October 2004, 10:42 PM
In a normal x86_64 distro, "uname -a" shows:
Linux amadeu.essr.net 2.6.8-1.521 #1 Mon Aug 16 09:01:00 EDT 2004 x86_64 x86_64 x86_64 GNU/Linux
You're probably running the SMP kernel version, for you have 2 processors. But it's been compiled for the i386 architecture.
9th October 2004, 12:34 AM
thanks, everyone. this resolves the issue. the vendor now admits to having installed the wrong version fo fc2.
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