[ovirt-users] adding host in ovirt issues

[Kyle Bassett]

I just saw this :} - thanks for the tip.

I will thank Geert later on :}

Will let everyone know when I post the blueprint…

Thanks

Kyle
There’s 2 small issues that you need to work around:

Due to an issue with the the user-mode CPU detection in libvirt, this patch <https://gist.github.com/geertj/56425d0fdc7c54d4bc9f> needs to be applied to /usr/share/libvirt/cpu_map.xml. This patch forces the CPU type to be an Opteron G2 independent of the CPUID. To apply this patch, log on to the hypervisor in rescue mode <https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Hypervisor_Deployment_Guide/sect-Deployment_Guide-Maintaining_and_Administrating_Red_Hat_Enterprise_Virtualization_Hypervisors-Setting_the_root_password.html>, apply the patch, and then issue the command “persist /usr/share/libvirt/cpu_map.xml”. This needs to be done after step 8 above.
I ran into a small bug where the installation of the bootloader would run into a legacy SYSCALL instruction. The fix will be deployed soon. In the mean time, if the VM crashes when the installer is installing the bootloader, you should delay step #4 until after step #8.





> On Sep 4, 2015, at 11:57 AM, Itamar Heim <iheim at redhat.com> wrote:
> 
> On 09/04/2015 11:11 AM, Michal Skrivanek wrote:
>> 
>> On 4 Sep 2015, at 16:58, Kyle Bassett wrote:
>> 
>>> I am using Ravellosystems.com <http://Ravellosystems.com/> - we can
>>> emulate SPM (AMD VT version) so you can run real hypervisors in the
>>> cloud. Not QEMU emulation.
>>> But this is the processor version it displays.  It is used for
>>> openstack and ESXi a lot - I was hoping I could do the same for ovirt…
>> 
>> well, to libvirt the emulated CPU looks like Athlon which is too old
>> I doubt it works differently in Openstack…is there any kind of setting
>> which flags are exposed in that VM instance you use as a host?
>> 
>> There is a nestedvt hook which used to be required…but people reported
>> AMD specific issues with that(" [ovirt-users] Nested KVM on AMD")…worth
>> a try though
>> 
> 
> Ravello should work, have you followed:
> https://www.ravellosystems.com/blog/run-red-hat-enterprise-virtualization-kvm-ec2/
> 
> 
>> 
>>> 
>>> I am running this in public cloud — not real bare metal.
>>> 
>>> Works great running KVM / Openstack, I guess manager won't let it
>>> happen.  Any work arounds?
>>> 
>>> Sorry about the meltable emails - Site was not added me the the list
>>> properly so I had no idea they were getting posted.
>>> 
>>> Kyle
>>> 
>>>> On Sep 4, 2015, at 10:52 AM, Michal Skrivanek
>>>> <michal.skrivanek at redhat.com <mailto:michal.skrivanek at redhat.com>> wrote:
>>>> 
>>>> 
>>>> On 3 Sep 2015, at 23:56, Kyle Bassett wrote:
>>>> 
>>>>> Hi, I am working on getting overt working on ravellosystems.  I want
>>>>> to post to repo and share with the community at some point.
>>>>> 
>>>>> When I try to add a host I keep getting this error:
>>>>> 
>>>>> Host's Cluster Compatibility Version doesn't match the Cluster's
>>>>> Compatibility Version.
>>>>> The CPU type showing on the host is: AMD Athlon(tm) Processor*
>>>>> 
>>>>> I have tried compatibility version 3.5 and 3.0 (both say the same
>>>>> thing).
>>>>> 
>>>>> What SPU Type should the cluster be configured with? AMD Opteron G1?
>>>>> 
>>>>> I use Ravello for openstack but having issues with Ovirt - could it
>>>>> be due to the fact that there is no CPU type Athlon?
>>>> 
>>>> Opteron G1 is the first supported AMD processor
>>>> do you really have such an ancient thing or is it mis-detected?
>>>> 
>>>> Thanks,
>>>> michal
>>>> 
>>>>> 
>>>>> Thanks
>>>>> Kyle
>>>>> 
>>>>> kyle.bassett at ravellosystems.com <mailto:kyle.bassett at ravellosystems.com>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at ovirt.org <mailto:Users at ovirt.org>
>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>> 
>>> 
>> 
>> 
>> 
>> _______________________________________________
>> Users mailing list
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>> http://lists.ovirt.org/mailman/listinfo/users
>> 
> 

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