is the broken KVM installation (UEFI) with the updates fixed on C8?
I have to update / install a new System, and don’t like to find out I have a broken system again :-(.
Thanks for a answer,
4 thoughts on - Question: KVM Config C8
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
Hello,
Am Dienstag, 12. November 2019, 09:28:05 CET schrieb Fabian Arrotin:
it is not possible to install a second KVM System (server) with UEFI enabled!
this crash the host?
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.
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:
“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. “
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.
Hello,
thanks fort the answer….. but
Am Dienstag, 12. November 2019, 15:13:07 CET schrieb Jonathan Billings:
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.
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 !!
Yes this is OK, it is the default by installing KVM / libvirt / qemu but it do not work?
4 thoughts on - Question: KVM Config C8
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
Hello,
Am Dienstag, 12. November 2019, 09:28:05 CET schrieb Fabian Arrotin:
it is not possible to install a second KVM System (server) with UEFI enabled!
this crash the host?
I go back to CentOS 7 after 5 days testing :-(.
I have no :-(
this was the first question!
https://lists.CentOS.org/pipermail/CentOS/2019-October/173964.html
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
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/html-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. “
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.
Hello,
thanks fort the answer….. but
Am Dienstag, 12. November 2019, 15:13:07 CET schrieb Jonathan Billings:
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.
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 !!
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,