Re: [Xen-devel] Re: mini-os for Xen2

[Jacob Gorm Hansen <jacobg@xxxxxxx>]

Keir Fraser wrote:
> xm gives the world's most unhelpful error messages. You may well find
> a more useful message hidden away in /var/log/xend[-debug].log as
> comes straight from the domain builder in libxc.
>
> My guess woul dbe that you do not have a '__xen_guest' section in your
> Elf image. Look at the top of
> linux-2.6.10-xen-sparse/arch/xen/i386/kernel/head.S for an example of
> how to specify one.
The new vm-tools that were just announced will probably be easier to use 
for this kind of debugging than xn/xend. Also, I used to re-create the 
HYPERVISOR_console_write syscall, and configure Xen to allow unpriv 
domains to write to the serial console. I think the new 
HYPERVISOR_console_io syscall can be convinced to do the same thing.
In my xen tarball at http://www.diku.dk/~jacobg/self-migration/ you can 
find the source of 'mstrap' which is very much like mini-os, but perhaps 
a little more up to date. The network driver is not working in Xen2, but 
the elf-image should at least load using the recent tools.
Jacob


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