[Xen-users] Using Linux 2.4 custom domu on x86_64 2.6 Xen dom0

[Brian <spatuality@xxxxxxxx>]

Hi group,

I have searched the archives and found some clues to making this work, but all 
is not clear yet. 

Here's what I need to do:
Run 10 domu's using custom Linux 2.4.27 kernel with a number of patches on a 
Xen dom0. Each server in our current non-Xen environment requires 1GB ram, and 
I am assuming about the same usage in a Xen environment plus a bit of overhead.


Here's the hardware/base system I'm using:
Dell 1855 blade servers Dual 3.0ghz 12GB ram. These can run either x86 32-bit, 
or x86_64. The base system is CentOS 4.3.


Where I'm at:
1) I figure 10 domu's should run on each blade depending on the final overhead 
of the Xen system. 
2) I believe Xen 3.x is not an option as there is no current port of a Linux 
2.4 domu Kernel. Am I right that only Linux 2.6 is ported to Xen 3.x for domu?
3) To use more than 4GB ram, it looks like I have to use either 
xen-unstable-install-x86_32p.tgz (PAE >4GB support), or 
xen-unstable-install-x86_64.tgz (since Xen 3.x is probably not an option), 
depending on the base system I run (eg. Cenos4.3 x86 or x86_64).

Big question:
How do I make 2.4.27 kernel with my patches Xenified for domu use in 
xen-unstable-install-x86_x? 

In the xen-2.0.7-src.tgz file, I see there is a linux-2.4.30-xen-sparse 
directory. Do I have to add my patches to a vanilla 2.4.30 kernel, then compile 
it somehow under the Xen source tree? Can I drop my current 2.4.27 sources into 
the Xen tree, then compile and smile?


Any help at all would be appreciated.

Brian




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