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@centos.org [mailto:centos-virt- bounces@centos.org] On Behalf Of ??????? ???????? Sent: 26 November 2013 13:47 To: centos-virt@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. _______________________________________________ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Yes, I was able to get output from Xen. Log file is attached.
Slava.
"Bob Ball" bob.ball@citrix.com:
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
The xen output doesn't show anything that I was expecting to see...
This might be an "fbcon" issue - there needs to be a change between CentOS 5 and CentOS 6 as to how the module is compiled to work by default with mkinitrd (as a module) and dracut (compiled in). I understand there are workarounds for dracut to ensure it adds the fbcon module, so you might need to try them.
One test is to just ssh to the machine and try to modprobe fbcon - the display should come back to life.
Bob
-----Original Message----- From: centos-virt-bounces@centos.org [mailto:centos-virt- bounces@centos.org] On Behalf Of Vyacheslav Tokarev Sent: 26 November 2013 19:03 To: Discussion about the virtualization on CentOS Subject: Re: [CentOS-virt] Cannot start CentOS after installing the latest Xen4 with kernel 3.10.20
Yes, I was able to get output from Xen. Log file is attached.
Slava.
"Bob Ball" bob.ball@citrix.com:
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
How can I ssh to the machine if it doesn't start? I tried, but there was no response.
27.11.2013, 13:56, "Bob Ball" bob.ball@citrix.com:
The xen output doesn't show anything that I was expecting to see...
This might be an "fbcon" issue - there needs to be a change between CentOS 5 and CentOS 6 as to how the module is compiled to work by default with mkinitrd (as a module) and dracut (compiled in). I understand there are workarounds for dracut to ensure it adds the fbcon module, so you might need to try them.
One test is to just ssh to the machine and try to modprobe fbcon - the display should come back to life.
Bob
-----Original Message----- From: centos-virt-bounces@centos.org [mailto:centos-virt- bounces@centos.org] On Behalf Of Vyacheslav Tokarev Sent: 26 November 2013 19:03 To: Discussion about the virtualization on CentOS Subject: Re: [CentOS-virt] Cannot start CentOS after installing the latest Xen4 with kernel 3.10.20
Yes, I was able to get output from Xen. Log file is attached.
Slava.
"Bob Ball" bob.ball@citrix.com:
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
CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
I've just installed kernel version 3.4.68-9 and now everything works as expected. So I guess something is wrong with kernel 3.10.20.
26.11.2013, 23:03, "Vyacheslav Tokarev" vs.tokarev@yandex.ru:
Yes, I was able to get output from Xen. Log file is attached.
Slava.
"Bob Ball" bob.ball@citrix.com:
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
, _______________________________________________ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
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