Xen users - Feb 2006 - Kernel 2.4 linux distros based on Xen3

Hi all,

  Is it possible to setup a linux distro (like CentOS 3, RHEL 3) based 
on 2.4 kernel under Xen 3 based host? Where I can find howto,docs,etc 
to accomplish this?

Thanks.

-- 
CL Martinez
carlopmart {at} gmail {d0t} com

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> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com 
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of carlopmart
> Sent: 01 February 2006 12:38
> To: xen-users@lists.xensource.com
> Subject: [Xen-users] Kernel 2.4 linux distros based on Xen3
> 
> Hi all,
> 
>   Is it possible to setup a linux distro (like CentOS 3, RHEL 
> 3) based on 2.4 kernel under Xen 3 based host? Where I can 
> find howto,docs,etc to accomplish this?
I don''t know where you''d find docs of any sort - but
currently, the only
solution would be to grab the "patches" for 2.6, apply them as best
you
can to 2.4, and fix up the remaining bits that don''t work.
That''s
probably several days work for someone familiar with Xen and 2.4/2.6
kernel, and if you haven''t got much experience with this,
you''re going
to have to gain that experience first... 

The other alternative, which is quite realistic for commercial use, but
probably not an option in a hobby-case, is that you get a "hardware
supported virtual machine", HVM, solution in place. This can run an
unmodified Linux (or other OS) in a virtual machine. 

--
Mats
> 
> Thanks.
> 
> --
> CL Martinez
> carlopmart {at} gmail {d0t} com
> 
> _______________________________________________
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> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
> 
> 

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There''s not a 2.4 kernel patch for Xen3 at the moment - it proved too
much
work to maintain the 2.4 patch during churn in the rest of the tree, and so 
the code is out of date. It shouldn''t be *too* much work for a kernel 
hacker to bring it back up to date, so it might reappear in the future.

You could either use Xen2, which doesn''t get updates / fixes very often
but
does have Linux 2.4 support. Or you could try and get your distro running 
with 2.6.

Cheers,
Mark

On Feb 1 2006, carlopmart wrote:
>Hi all,
>
>  Is it possible to setup a linux distro (like CentOS 3, RHEL 3) based 
>on 2.4 kernel under Xen 3 based host? Where I can find howto,docs,etc 
>to accomplish this?
>
>Thanks.
>
>
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On Wed, 2006-02-01 at 13:37 +0100, carlopmart wrote:
>   Is it possible to setup a linux distro (like CentOS 3, RHEL 3) based 
> on 2.4 kernel under Xen 3 based host? Where I can find howto,docs,etc 
> to accomplish this?
i successfully installed sl3.05 under sl4.1 (scientific linux is another
rhel clone like centos)
i run the dom0 and with the binary rhel4.1 xen packages (including 
the 2.6 kernel package) from xen source.

what i did: 

* copy sl3 installation in the domu partition
* replace the fsck.ext3 and e2fsck with sl4 versions
(if your domu partitions are ext3)
* install the xensource binary rhel4.1 kernel in domu
(in the domu you will get a lot of warnings, ignore)
* install module-init-tools from sl4 in the sl3 domu
* mv /lib/tls /lib/tls.old
or install
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/downloads/RPMS/rhel3/glibc-2.3.2-95.30.xen.i686.rpm


regards


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