> I tried to start a 32Bit PVM system on a 64Bit dom0, and got the following
> error:
> Using config file "./VM1".
> Error: (2, 'Invalid kernel', 'xc_dom_compat_check: guest type
> xen-3.0-x86_32 not supported by xen kernel, sorry\n')
That is a non-PAE kernel, right? If it were PAE, I'd expect the guest type to
be "xen-3.0-x86_32p". Only 32-bit PAE kernels will boot on 64-bit so you'd
need to get a guest kernel with PAE enabled (either rebuild it or see if your
distro has a PAE-enabled package).
> and it just did not started. Is ist just because of the different 32/64Bit
> of domU and dom0? The xen in the dom0 is configured to be backward
> compatible. The dom0 is a xen 3.1.0, the domU is a xen 3.0.3.
3.1 had backwards compatibility for 32-bit PAE domains on a 64-bit Xen,
however, if I recall correctly the original 3.1.0 release didn't work with
older 32-bit guest kernels (full backwards compatibility was implemented in a
subsequent patch - it's probably in a later release in the 3.1 series).
So you *might* need a newer release of 3.1 to run your guest; I'm not sure on
this, though because I never really looked into what the limitation was.
I think a few things (live migration / save-restore) were also not supported
for domains of a different addressing mode to dom0 under 3.1 (e.g. can't
save/restore/migrate 32-bit domUs if dom0 is 64-bit, or vice-versa) but the
basic functionality of booting and running domains ought to work OK...
> When this is just not working, then I have to run the dom0 in 32Bit. Do I
> can then assign 4GB RAM to each domU, or will the dom0 be unable to handle
> that amount of memory? I assume I need a PAE enabled Xen kernel for the
> dom0? But will I need such a kernel then for the domU's too?
You can have 32-bit dom0 and still run 64-bit domUs, if your Xen itself is
64-bit; you should be able to run 32-bit PAE domUs with > 4G of memory as
well, I think.
Hope that helps,
Cheers,
Mark
> kind regards
> Sebastian
>
> Sorry if this mail hits the M/L twice, I sent the original yesterday
> afternoon, and still nothing on the list, therefore resending it now.
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
--
Push Me Pull You - Distributed SCM tool (http://www.cl.cam.ac.uk/~maw48/pmpu/)
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
Home