[CentOS-virt] Xen CentOS 7.3 server + CentOS 7.3 VM fails to boot after CR updates (applied to VM)!

PJ Welsh pjwelsh at gmail.com
Thu Sep 14 13:47:01 UTC 2017


On Wed, Sep 6, 2017 at 8:40 AM, Johnny Hughes <johnny at centos.org> wrote:

> On 09/05/2017 02:26 PM, Kevin Stange wrote:
> > On 09/04/2017 05:27 PM, Johnny Hughes wrote:
> >> On 09/04/2017 03:59 PM, Kevin Stange wrote:
> >>> On 09/02/2017 08:11 AM, Johnny Hughes wrote:
> >>>> On 09/01/2017 02:41 PM, Kevin Stange wrote:
> >>>>> On 08/31/2017 07:50 AM, PJ Welsh wrote:
> >>>>>> A recently created and fully functional CentOS 7.3 VM fails to boot
> >>>>>> after applying CR updates:
> ...
> One other option is to run the DomU's as PVHVM:
> https://wiki.xen.org/wiki/Xen_Linux_PV_on_HVM_drivers
>
> That should be much better performance than HVM and may be a workable
> solution for people who don't want to modify their VM kernel.
>
> Here is more info on PVHVM:
> https://wiki.xen.org/wiki/PV_on_HVM
>
> ================
> Also heard from someone to try this Config file change to the base
> kernel and rebuild:
>
> CONFIG_RANDOMIZE_BASE=n
> ...


The referenced link (https://wiki.xen.org/wiki/Xen_Linux_PV_on_HVM_drivers)
looks to be about adding to the older configuration style file. I do not
see the proper incantation for the " xen_platform_pci=1" in the domain xml
file syntax. I'm not even sure if I attempted it correctly. Is there a
portion of that page that pertains explicitly to booting? I think I missed
something.

Thanks
PJ
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