kernel update from 2.4.26 to 2.6.

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kernel update from 2.4.26 to 2.6.

Jon Miller-5
I need to do a kernel update on our Debian server from 2.4.26 to 2.6.11 or better.  When I did a apt-cache search kernel-image 2 of the images I got was:
kernel-image-2.6-686 - Linux kernel image for version 2.6 on PPro/Celeron/PII/PIII/P4.
kernel-image-2.6-686-smp - Linux kernel image for version 2.6 on PPro/Celeron/PII/PIII/P4 SMP.
The server has a P4  in it, from what I remember there is a feature in the BIOS that can turn on or off the Hyperthreading and with it on it's possible (correct me if I'm wrong here)  to run the system with the kernel-image-2.6-686-smp image.
1) is this correct
2) are there really any benefits to running this as a gateway server? or should I just stay with the kernel-image-2.6-686?

The current kernel is Linux mei 2.4.26 #9 Fri Sep 17 09:13:49 WST 2004 i686 unknown.

The only reason I have to do this is due to we are running a software (MyNetfone) a software VOIP product on the users desktop and we cannot get the voice to come back through and this was due to not having sip_conntrack as a module loaded or available.  It seems it is only available in a >= 2.6.11 kernel.

Thanks

Jon L. Miller,  ASE, CNS, CLS, MCNE, CCNA
Director/Sr Systems Consultant
MMT Networks Pty Ltd
http://www.mmtnetworks.com.au
Resellers for: Novell Gold Partner, Cisco Partner, Peopletelecom, Westnet, Sophos Anti-Virus,

"I don't know the key to success, but the key to failure
 is trying to please everybody." -Bill Cosby

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Re: kernel update from 2.4.26 to 2.6.

Joseph H. Fry
On Wednesday 01 February 2006 5:04 pm, Jon Miller wrote:
> I need to do a kernel update on our Debian server from 2.4.26 to 2.6.11 or
> better.  When I did a apt-cache search kernel-image 2 of the images I got
> was: kernel-image-2.6-686 - Linux kernel image for version 2.6 on
> PPro/Celeron/PII/PIII/P4. kernel-image-2.6-686-smp - Linux kernel image for
> version 2.6 on PPro/Celeron/PII/PIII/P4 SMP. The server has a P4  in it,
> from what I remember there is a feature in the BIOS that can turn on or off
> the Hyperthreading and with it on it's possible (correct me if I'm wrong
> here)  to run the system with the kernel-image-2.6-686-smp image.

> 1) is this correct

If you have a hyperthreading proc and it's enabled... the smp kernel will
work, hell it will work even if you don't have HT.

> 2) are there really any benefits to running this as a gateway server? or
> should I just stay with the kernel-image-2.6-686?

The benefits are minimal in nearly every circumstance when using
hyperthreading... I imagine there are times when it may hurt you even... but
I can't imagine that is the case for you.  Considering that most future
computers will be smp (dual core) then I would say go with the smp kernel as
it may make transitioning to future hardware and kernels easier?... And who
knows, now that smp is getting more common, perhaps the dev's will start to
actually write most of their apps with smp in mind?

Joe


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Re: kernel update from 2.4.26 to 2.6.

Kumar Appaiah-3
In reply to this post by Jon Miller-5
On Thu, Feb 02, 2006 at 06:04:38AM +0800, Jon  Miller wrote:
> I need to do a kernel update on our Debian server from 2.4.26 to 2.6.11 or better.  When I did a apt-cache search kernel-image 2 of the images I got was:
> kernel-image-2.6-686 - Linux kernel image for version 2.6 on PPro/Celeron/PII/PIII/P4.
> kernel-image-2.6-686-smp - Linux kernel image for version 2.6 on PPro/Celeron/PII/PIII/P4 SMP.
> The server has a P4  in it, from what I remember there is a feature in the BIOS that can turn on or off the Hyperthreading and with it on it's possible (correct me if I'm wrong here)  to run the system with the kernel-image-2.6-686-smp image.
> 1) is this correct
> 2) are there really any benefits to running this as a gateway server? or should I just stay with the kernel-image-2.6-686?

Note that the kernel packages have now been renamed to
`linux-image-<ver>'

$ apt-cache search linux-image
[snip]
linux-image-2.6.15-1-486 - Linux kernel 2.6.15 image on 486-class machines
linux-image-2.6.15-1-686 - Linux kernel 2.6.15 image on PPro/Celeron/PII/PIII/P4 machines
linux-image-2.6.15-1-686-smp - Linux kernel 2.6.15 image on PPro/Celeron/PII/PIII/P4 SMP machines
linux-image-2.6.15-1-k7 - Linux kernel 2.6.15 image on AMD K7 machines
linux-image-2.6.15-1-k7-smp - Linux kernel 2.6.15 image on AMD K7 SMP machines
[snip]

HTH.

Kumar


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Kumar Appaiah,
462, Jamuna Hostel,
Indian Institute of Technology Madras,
Chennai - 600 036

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Re: kernel update from 2.4.26 to 2.6.

Andrei Popescu
In reply to this post by Jon Miller-5
On Thu, 02 Feb 2006 06:04:38 +0800
"Jon  Miller" <[hidden email]> wrote:

> I need to do a kernel update on our Debian server from 2.4.26 to 2.6.11 or better.  When I did a apt-cache search kernel-image 2 of the images I got was:
> kernel-image-2.6-686 - Linux kernel image for version 2.6 on PPro/Celeron/PII/PIII/P4.
> kernel-image-2.6-686-smp - Linux kernel image for version 2.6 on PPro/Celeron/PII/PIII/P4 SMP.

In sarge you will only get 2.6.8 You can either pull 2.6.12 (linux-image.2.6.12-1-686) from testing or build your own with make-kpkg (from 'kernel-package')

Andrei
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If you can't explain it simply, you don't understand it well enough. (Albert Einstein)


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