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[Fedora-xen] Success with Fedora 10 Xen pv_ops 2.6.29-rc8 dom0



Hello!

I've used a lot of time trying to get my custom Xen pv_ops dom0 kernel working with
virt-install and/or virt-manager on Fedora 10, and now it seems I got things
working. 

If you want to play with this you need:

1) New enough pv_ops dom0 kernel (2.6.29-rc8 or newer) so it has /sys/hypervisor support included
	- Compile with CONFIG_HIGHPTE=n since it seems to be broken still
2) libvirt 0.6.1 and related packages from Fedora 10 updates-testing

In addition to those I'm using Xen 3.3.1-9 packages from rawhide/F11 rebuilt for F10. 

With the older Fedora 10 libvirt packages libvirtd was crashing often for me, and
I had some other issues with virt-install console window not opening but stalling etc..

Today I was able to run the following on Fedora 10 32bit PAE pv_ops dom0:

- CentOS 5.3 32bit PAE PV domU
- Fedora 10 32bit PAE PV domU 
- Use virt-install to install Fedora 10 32bit PAE PV domU (using custom kickstart
to force PAE kernel installation to avoid the anaconda BUG which installs
wrong non-PAE kernel as a default).

Fedora 11 (rawhide) installation most probably works too. 

I'm using LVM volumes for domU disks (tap:aio is not yet supported by pv_ops
dom0 kernel). 

Network seems to work after running "ifdown eth0 && ifup eth0"
on the guest.. dunno why that's needed. That's something to figure out later:)

Graphical domU console works with virt-viewer and virt-install during installation.

Issues:
- virt-manager complains about default network (virbr0) being inactive and
asks if I want to start it. If I click Yes, then I get error: "libvirtError: cannot create bridge 'virbr0': File exists"

virbr0 works just fine with virt-install. So dunno what's the problem with that.. 
have to look into that later.

Thanks to everyone involved for helping me with this!

-- Pasi


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