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Re: [Libguestfs] oVirt import from VMware



Directly importing from VMware would be desirable to not have a 2-step process. I'll look into updating.

And just to confirm - it still has to go through vCenter right? (Can't go directly to the ESXi host).

I tried the OVA method where I exported the VM using VMware's ovftool directly to the new KVM host. However, importing this local OVA (with the oVirt GUI rather than virt-v2v on the command line) still failed.

"
virt-v2v: error: inspection could not detect the source guest (or physical
machine).

Assuming that you are running virt-v2v/virt-p2v on a source which is
supported (and not, for example, a blank disk), then this should not
happen.

No root device found in this operating system image. 
"

Attached the import log.

Thanks!
- Alan

On Mon, May 17, 2021 at 1:35 PM Richard W.M. Jones <rjones redhat com> wrote:
[Adding upstream mailing list]

On Mon, May 17, 2021 at 12:32:12PM -0400, Alan Daniels wrote:
>     >             Thanks Martin. The logs (/var/log/vdsm/import on the host)
>     show:
>     >
>     >             qemu-img: /var/tmp/v2vovle5b34c.qcow2: CURL: Error opening
>     file:
>     >             Server does not support 'range' (byte ranges).
>
>     This is unexpected, but I'd need to see the full log to be sure.
>
>     Given the little information available (but it's vCenter 7 so it would
>     fit), it could be:
>
>       https://bugzilla.redhat.com/show_bug.cgi?id=1846238
>       https://bugzilla.redhat.com/show_bug.cgi?id=1841038
>
>     (They're the same bug, we didn't fix it in RHEL 7)
> Hey Rich,
>
> Thanks for the help! Some more info about the environment:
>
> Oracle Linux 7.9
> # cat /etc/redhat-release
> Red Hat Enterprise Linux Server release 7.9 (Maipo)
>
> OLVM / oVirt 4.3
>
> virt-v2v.x86_64                         1:1.40.2-10.0.1.el7 
> libguestfs.x86_64                     1:1.40.2-10.0.1.el7 
> qemu-kvm.x86_64                   15:4.2.1-6.el7
> nbdkit.x86_64                           1.8.0-4.el7
> qemu-block-curl.x86_64          15:4.2.1-6.el7                     
>
> Running on Oracle Cloud.
>
> VMware is on another cloud provider and they're connected via VPN.
>
> The logs looks essentially the same as the one from https://bugzilla.redhat.com
> /show_bug.cgi?id=1846238
>
> I can't really upgrade from 7.9 to 8.3, so is this expected behavior? Are there
> some potential workarounds?

It's a bug in qemu which you will need to patch in order to do the
import using this method.

Other methods don't suffer from the bug because they don't use qemu in
the same way.  I would recommend exploring the “-i ova” method.

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org

Attachment: import-41745e96-544b-45ac-abad-1c67ba877edb-20210519T143948.log
Description: Binary data


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