CentOS virt - Nov 2013 - Cannot start CentOS after installing the latest Xen4 with kernel 3.10.20

Hello.

I'm installing the latest version of XEN to CentOS 6.4 machine.
XEN version: 4.2.3-25.el6.centos.alt
kernel: 3.10.20-11.el6.centos.alt

When I reboot, many messages appears on the screen, indication the loading of
XEN and then.. just a black screen. Several days ago I successfully installed
XEN on another machine, but that was XEN 4.2.3-23 and kernel 3.4.68-9. And now,
after the new version is released, it stopped working..

Also if I try to load a new kernel without XEN - it works perfectly.

Please help me find out what's wrong with the new XEN kernel and how to fix
it. Thanks.

Any chance of getting the serial output from Xen? 
http://wiki.xen.org/wiki/Xen_Serial_Console

That would be very useful to understand what might be going on here.

Bob
> -----Original Message-----
> From: centos-virt-bounces at centos.org [mailto:centos-virt-
> bounces at centos.org] On Behalf Of ??????? ????????
> Sent: 26 November 2013 13:47
> To: centos-virt at centos.org
> Subject: [CentOS-virt] Cannot start CentOS after installing the latest Xen4
> with kernel 3.10.20
> 
> Hello.
> 
> I'm installing the latest version of XEN to CentOS 6.4 machine.
> XEN version: 4.2.3-25.el6.centos.alt
> kernel: 3.10.20-11.el6.centos.alt
> 
> When I reboot, many messages appears on the screen, indication the
> loading of XEN and then.. just a black screen. Several days ago I
successfully
> installed XEN on another machine, but that was XEN 4.2.3-23 and kernel
> 3.4.68-9. And now, after the new version is released, it stopped working..
> 
> Also if I try to load a new kernel without XEN - it works perfectly.
> 
> Please help me find out what's wrong with the new XEN kernel and how to
> fix it. Thanks.
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> CentOS-virt at centos.org
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