[clug] I need help with KVM vitualization

[Stephen Hocking]

"It also shut down the host machine (and probably every other linux
machine in Australia - I
could not tell)."

So you're the one who was responsible!

On Sun, 19 Jul 2020 at 16:51, Eyal Lebedinsky via linux
<linux at lists.samba.org> wrote:
>
> The first thing I need is a pointer at a good doco that explains what linux kvm is and how to import
> a physical machine into the virtual domain.
>
> I dd'ed the root disk (/dev/sda) to a file on a local disk of the machine that will be the VM host.
> I searched for instructions and found most are missing what I consider essential detail, like where
> exactly I should run each step etc. Others have a more complicated setup (lvm and what not).
>
> My main worry is that I tried it once, used the GUI tool (virt-manager) and pointed it at a disk
> image (from a VirtualBox I had lying around). It started booting (offered the grub selection)
> then showed a screen with three dots and gone quiet. After a few minutes I got an error message
> and a dracut prompt.
>
> Not knowing how to proceed I decided to just abandon this vm. I issued 'halt' inside the small
> console window and it did it.
> It also shut down the host machine (and probably every other linux machine in Australia - I
> could not tell).
>
> I was surprised that a virtual tool can do this to the host, having used Vmware and VirtualBox
> where there is a clear fence around the VM world.
>
> So much fun, but I probably need to educate myself better about what KVM really is.
>
> My need is simple:
>    - I have an image (dd) of the disk from a physical machine. I want to run it as a virtual
>      machine on another host. How do I import the image?
>    - Is kvm the correct tool for this? Should I go back to using VirtualBox?
>
> TIA
>
> --
> Eyal at Home (eyal at eyal.emu.id.au)
>
> --
> linux mailing list
> linux at lists.samba.org
> https://lists.samba.org/mailman/listinfo/linux



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