[CentOS] Question: KVM Config C8

Günther J. Niederwimmer

gjn at gjn.priv.at
Wed Nov 13 15:25:06 UTC 2019


thanks fort the answer..... but

Am Dienstag, 12. November 2019, 15:13:07 CET schrieb Jonathan Billings:
> On Tue, Nov 12, 2019 at 09:28:05AM +0100, Fabian Arrotin wrote:
> > Well, without giving any detail, and so under the assumption that we all
> > know what you're talking about, that will be difficult for people on
> > this list to answer your question (and statement) :)
> > Can you so give us first :
> > - details about what you mean by "broken kvm installation (uefi)"
> > - link to bug report that confirms such statement about something broken
> > - eventually links to list archives if you already mentioned it
> I'm aware of this problem.  Basically, around RHEL 7.3, the OVMF
> package (which provides the UEFI firmware) was updated to support
> Secure Boot, which it didn't previously.
> https://access.redhat.com/errata/RHBA-2016:2608

On centos 7.X I can do this with the repository "CENTOS-QEMU-EV.repo" and the 
"kraxel.repo" for OVMF, this is working over years now.
> Unfortunately, the new firmware didn't support the kvm provided by
> CentOS, it was built to support qemu-kvm-rhev, which isn't distributed
> as part of CentOS (iirc).  Since UEFI boot in KVM was always listed as
> a Tech Preview, it wasn't really considered something that broke
> everything:
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/htm
> l-single/7.7_release_notes/index
> "The Open Virtual Machine Firmware (OVMF) is available as a Technology
> Preview in Red Hat Enterprise Linux 7. OVMF is a UEFI secure boot
> environment for AMD64 and Intel 64 guests. However, OVMF is not
> bootable with virtualization components available in RHEL 7. Note that
> OVMF is fully supported in RHEL 8. "

This is my Problem (?), this will work ONLY, with the first installed Client a 
second client (host) is not possible to install with UEFI? This crash the 
whole system !!
> According to the release notes for 8.0 (which should include CentOS
> 8), qemu-kvm supports UEFI guest boot.  You probably need to make sure
> you have the edk2-ovmf.noarch firmware package installed to use it.

Yes this is OK, it is the default by installing KVM / libvirt / qemu but it do 
not work?

That is why i wrote this question.

Thanks for the answer, 

mit freundlichen Grüßen / best regards

  Günther J. Niederwimmer

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