migrated or moved? I move vm from C6 to C7 without any problem, C5 guests too.

- copy disk files (rsync or scp) - create in virtual manager - change HWADDR in nic

start guest

Viele Grüße Helmut Drodofsky

Internet XS Service GmbH Heßbrühlstraße 15 70565 Stuttgart

Geschäftsführung Helmut Drodofsky HRB 21091 Stuttgart USt.ID: DE190582774 Fon: 0711 781941 0 tel:+497117819410 Fax: 0711 781941 79 Mail: info@internet-xs.de www.internet-xs.de Am 24.04.2020 um 11:53 schrieb isdtor:

I have migrated KVM VMs from a CentOS 6 to a CentOS 7 host. All work fine post-migration, CentOS 3 (don't ask ...), CentOS 6, CentOS 7, Windows. But the CentOS 5 VMs failed. At some point during the boot process, they became unpingable and also inaccessible.

I have correlated this to the start of the irqbalance service and was wondering if it is generally considered best practice to turn it off. The VMs in question all have at least 2 vcpus, and the C5 VMs are the odd ones out.

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CentOS-virt mailing list CentOS-virt@centos.org https://lists.centos.org/mailman/listinfo/centos-virt

I may have run into this issue before too, but in my case the VMs ran fine with only 1 vcpu so I booted them that way and left them like that. It was just a few small legacy VMs and I didn't spend any more time on it.

Did you try booting with only 1 vcpu?

Chris

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From: isdtor isdtor@gmail.com To: centos-virt@centos.org Sent: 24/04/2020 11:53 AM Subject: [CentOS-virt] VM migration problems

I have migrated KVM VMs from a CentOS 6 to a CentOS 7 host. All work fine post-migration, CentOS 3 (don't ask ...), CentOS 6, CentOS 7, Windows. But the CentOS 5 VMs failed. At some point during the boot process, they became unpingable and also inaccessible.

I have correlated this to the start of the irqbalance service and was wondering if it is generally considered best practice to turn it off. The VMs in question all have at least 2 vcpus, and the C5 VMs are the odd ones out.