Re: which kernel for dual opteron ???
On Thu, Jun 01, 2006 at 08:32:52AM +0200, Francesco Pietra wrote:
> I am very sorry for having bothered Len and the audience with a number of
> faulty e-mails.
> This morning 1st June, with sources.list:
>
> deb http://secure-testing.debian.net/debian-secure-testing
> etch/security-updates contrib main non-free
>
> deb ftp:/at.debian.org/debian-amd64/debian/ etch contrib main non-free
> deb-src ftp:/at.debian.org/debian-amd64/debian/ etch contrib main non-free
>
> deb ftp://mirrors.kernel.org/debian/ etch contrib main non-free
> deb-src ftp://mirrors.kernel.org/debian/ etch contrib main non-free
>
>
> I imported security key with:
> gpg --recv-key 946AA6E18722E71E
> gpg --armor --export 946AA6E18722E71E |apt-key add -
>
> Then:
> apt-get install linux-image-2.6-amd6a-k8
Add -smp to the end. Then you will get the multi processor kernel
instead.
> uname -a
> reports
> Linux debian 2.6.15-1-amd64-k8 #2 Mon Mar 20 11:13:14 UTC 2006 x86_64
> GNU/Linux
>
> A question related to e-mail by <helices>, as they reported
> # uname -a
> ? ? Linux odin 2.6.15-1-amd64-k8-smp #2 SMP Mon Mar 20 11:41:50 UTC 2006
> x86_64 GNU/Linux
>
> is their <smp> a must, or am I OK without it for my hardware
> TWO 264 amd64-opteron on Tyan K8WE 2895 plus video card and
> scsi card for external scsi chain composed of hd, CD, and scanner ; plus
> TWO hd in raid1 from debian?
The smp kernel is required if you want to use more than one cpu core.
Any dual core, or multi processor system requires an smp kernel to use
those extra CPUs. Similarly any system with intel's hyperthreading
requires an smp kernel to use the hyperthreading "extra" cpu.
smp simply means you have more than one processor in linux. Doesn't
matter what method of having multiple processors it is.
Len Sorensen
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