Xen users - Jan 2007 - "''Invalid kernel'', ''xc_dom_find_loader: no loader found\n" with new vanilla 2.6.23-rc8

Hey folks,
this is my first contact to XEN-users list. So please be patient if I
missed something. I''ve searched a lot before writing this email.

My problem:
I do have a non-VT/Pacifica box (an old IBM Laptop). There I''ve got
already
Xen installed (Dom0, 2.6.18-xen0). Now I''ve tried to use the newest
vanilla
kernel from Kernel.org (at this time: 2.6.23-rc8). As commonly known this
Kernel now does include the DomU patches needed to run this kernel as DomU
under Dom0.
So, I''ve compiled the 2.6.23-rc8 with the XEN specific settings, stated
somewhere at user or devel list (i''ll include all my config settings to
this email) and tried to start my newly compiled and created xen-domain.

But I do get the following error after issuing: xm create
/etc/xen/szpn0005.intern.pn-systeme.de.cfg -c
Using config file "/etc/xen/szpn0005.intern.pn-systeme.de.cfg".
Error: (2, ''Invalid kernel'', ''xc_dom_find_loader: no
loader found\n'')

The first time I tried to build an DomU from the same kernel sources used
for the Dom0. At this time all went fine and the DomU went up fine. So my
general procedure could not be totaly wrong.

So, what need to be done to run the new 2.6.23.* as DomU at top of default
Dom0?

PS: I''ll attach all xen-logs/configs and kernel configs that could make
sense.

Thanks & Greetings.
NicoP.
(See attached file: xend-debug.log)(See attached file:
config-2.6.18-xen0PN-Systeme)(See attached file:
config-2.6.23-rc8PN-Systeme)(See attached file: domain-builder-ng.log)(See
attached file: szpn0005.intern.pn-systeme.de.cfg)(See attached file:
szpn0005.intern.pn-systeme.de.log)(See attached file: xend.log)







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Hmmmmm.  That sounds rather strange.  Have you tried booting the raw vmlinux 
rather than vmlinuz?  I don''t think that ought to help, but I
can''t think of
anything else right now!

Everything you''ve done looks right.  The classic mistake is to try and
boot a
Linux bzImage with the domain builder - which produces similar errors to what 
you have seen.  But it looks like you''re just using the raw vmlinuz
file from
the kernel build, right?  In which case I''d say it *should* work...

What version of Xen are you running?  Can you stick the kernel online 
somewhere so others can have a go at booting it on their systems?

Cheers,
Mark

On Wednesday 10 January 2007, Nico Prenzel wrote:
> Hey folks,
> this is my first contact to XEN-users list. So please be patient if I
> missed something. I''ve searched a lot before writing this email.
>
> My problem:
> I do have a non-VT/Pacifica box (an old IBM Laptop). There I''ve
got already
> Xen installed (Dom0, 2.6.18-xen0). Now I''ve tried to use the
newest vanilla
> kernel from Kernel.org (at this time: 2.6.23-rc8). As commonly known this
> Kernel now does include the DomU patches needed to run this kernel as DomU
> under Dom0.
> So, I''ve compiled the 2.6.23-rc8 with the XEN specific settings,
stated
> somewhere at user or devel list (i''ll include all my config
settings to
> this email) and tried to start my newly compiled and created xen-domain.
>
> But I do get the following error after issuing: xm create
> /etc/xen/szpn0005.intern.pn-systeme.de.cfg -c
> Using config file "/etc/xen/szpn0005.intern.pn-systeme.de.cfg".
> Error: (2, ''Invalid kernel'',
''xc_dom_find_loader: no loader found\n'')
>
> The first time I tried to build an DomU from the same kernel sources used
> for the Dom0. At this time all went fine and the DomU went up fine. So my
> general procedure could not be totaly wrong.
>
> So, what need to be done to run the new 2.6.23.* as DomU at top of default
> Dom0?
>
> PS: I''ll attach all xen-logs/configs and kernel configs that could
make
> sense.
>
> Thanks & Greetings.
> NicoP.
> (See attached file: xend-debug.log)(See attached file:
> config-2.6.18-xen0PN-Systeme)(See attached file:
> config-2.6.23-rc8PN-Systeme)(See attached file: domain-builder-ng.log)(See
> attached file: szpn0005.intern.pn-systeme.de.cfg)(See attached file:
> szpn0005.intern.pn-systeme.de.log)(See attached file: xend.log)


-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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