Upgrade from 2.4.25 to 2.6.4 kernel

Upgrade from 2.4.25 to 2.6.4 kernel

[Job 317]

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Hello list.

Can someone please point me to a HOWTO on installing a 2.6.x kernel on a
system that heretofore runs a 2.4.x kernel? 

NOT a howto on building the kernel. I'm o.k. there. But I understand
that it is not the same upgrading to a 2.6.x kernel as it is just
upgrading to the next 2.4.x kernel. Is this correct? Aren't there
startup scripts and things that rely on the 2.4.x structure that change
slightly for a 2.6.x kernel?

!!!!Also... is it possible to still to boot back to a 2.4.x kernel in
this case? Lets say I keep my 2.4.25 kernel that I built on my RedHat 9
box. Can I also boot to and from my 2.6.x kernel?

Thanks.

JOB

Re: Upgrade from 2.4.25 to 2.6.4 kernel

[Mark]

On April 1, 2004 03:49 pm, "Job 317" <job317@mailvault.com> wrote:
> Hello list.
>
> Can someone please point me to a HOWTO on installing a 2.6.x kernel on a
> system that heretofore runs a 2.4.x kernel?

http://kerneltrap.org/node/view/799 

BTW Google is your friend here. Do a search for 2.6 HOWTO and that link is the 
first one on the list.
>
> NOT a howto on building the kernel. I'm o.k. there. But I understand
> that it is not the same upgrading to a 2.6.x kernel as it is just
> upgrading to the next 2.4.x kernel. Is this correct?

No, a 2.6 kernel will run without changes to RedHat 9 but some changes should 
be made.

> Aren't there 
> startup scripts and things that rely on the 2.4.x structure that change
> slightly for a 2.6.x kernel?
>

Yes, check out the link above. There are also some links to RedHat 9 specific 
instructions.

> !!!!Also... is it possible to still to boot back to a 2.4.x kernel in
> this case?

Yep you can still run a 2.4.x kernel.

> Lets say I keep my 2.4.25 kernel that I built on my RedHat 9 
> box. Can I also boot to and from my 2.6.x kernel?

Yes

-- 
Mark Lane, CET mailto:mark@harddata.com 
Hard Data Ltd. http://www.harddata.com 
T: 01-780-456-9771   F: 01-780-456-9772
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Re: Upgrade from 2.4.25 to 2.6.4 kernel

[Darren Williams]

Hi Job

http://www.kernel.org/pub/linux/kernel/people/davej/misc/post-halloween-2.6.txt

Should help

Darren


On Thu, 01 Apr 2004, Job 317 wrote:

> Hello list.
> 
> Can someone please point me to a HOWTO on installing a 2.6.x kernel on a
> system that heretofore runs a 2.4.x kernel? 
> 
> NOT a howto on building the kernel. I'm o.k. there. But I understand
> that it is not the same upgrading to a 2.6.x kernel as it is just
> upgrading to the next 2.4.x kernel. Is this correct? Aren't there
> startup scripts and things that rely on the 2.4.x structure that change
> slightly for a 2.6.x kernel?
> 
> !!!!Also... is it possible to still to boot back to a 2.4.x kernel in
> this case? Lets say I keep my 2.4.25 kernel that I built on my RedHat 9
> box. Can I also boot to and from my 2.6.x kernel?
> 
> Thanks.
> 
> JOB
--------------------------------------------------
Darren Williams <dsw AT gelato.unsw.edu.au>
Gelato@UNSW <www.gelato.unsw.edu.au>
--------------------------------------------------

Re: Upgrade from 2.4.25 to 2.6.4 kernel

[Job 317]

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Mark and Darren,

You've been most helpful.

Kindest regards,

JOB