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I am stuck here and can not find information about migrating Windows and Linux/Unix vm's to KVM. Doing it with zfs is inefficient, because it will transfer the whole disk space, which can be more than 200GB.

Making a copy of the directories in Linux/Unix machines kind of worked, but I don't think that's the right way.

cp -R /etc
cp -R /home/user
And send those copies to the KVM machine.

For the Linux part was basically that. I needed mainly installed services and their configs. If there is a way to copy the entire VM and spin it up on KVM good, I am open.

Creating a backup of Windows Server does not work also, because it creates vhdx files and converting them to qcow2 seems to break them, or I just don't do it right.

I use the Backup service and add the whole system backup zip to a network share. Basically that's it and I am stuck how it can but used to spin up new Windows VM on KVM.

Can someone give me guidance here?

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  • "doing with with ZFS is inefficient, because it will transfer the whole disk space": um, no? ZFS send and receive will only copy used extents. So, maybe you're doing something else?
    – Marcus Müller
    Commented Dec 14, 2022 at 12:01
  • "I don't think that's the right way." Why not? What's the reason you think this? You might have requirements that say it isn't, but we don't know your requirements!
    – Marcus Müller
    Commented Dec 14, 2022 at 12:02
  • "or I just don't do it right." this one kind of directly says you should tell us, in verbatim commands, what you're doing.
    – Marcus Müller
    Commented Dec 14, 2022 at 12:02
  • Let me update it.
    – Baequiraheal
    Commented Dec 14, 2022 at 12:03
  • Explained what I have done, there is nothing more than that for now.
    – Baequiraheal
    Commented Dec 14, 2022 at 12:58

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