On 21/01/18 05:24, Paul R. Ganci wrote: > I have a Windows 7 KVM guest running on a Centos 6.9 KVM host. I would > like to upgrade the host system to CentOS 7.4.1708 without having to > re-install from scratch the KVM guest. What procedure should I use to > move the guest off the host system, upgrade the CentOS version and then > move the KVM Guest back to the host? For example, Is there a recommended > way to move the KVM Guest to a USB stick and then move it back to the > upgraded host? Thank you for your help. > Not enough details but yeah, that's doable with some easy steps (but then also depends on what you have availble, etc ..) - shutdown guests - save all the .qcow2 files (assuming that you don't use raw devices for backend disks, like for example lvm) from /var/lib/libvirt/images (default location, but again, it depends on your config) - export the .xml files used by libvirt to start the nodes - reinstall the node (there is no way to upgrade from 6 to 7, and fresh install is always better anyway) - reconfigure new node with same network bridge (if any, depends on your situation) and ensure libvirt, qemu-kvm (and deps) are installed/started - import back .qcow2 files (in /var/lib/libvirt/images) - "virsh define" against .xml files to configure the VMs on the nodes - start the VMs -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 56BEC54E | twitter: @arrfab
Attachment:
signature.asc
Description: OpenPGP digital signature
_______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos
