In vmware to KVM migrations : virt-v2v can’t find the file the OVF says should exist, the conversion stops and throws “file not found in the OVA archive.”

[akshayfromcomhard]

problem

vcenter connection is live and after starting migration, below error comes with logs -

tail -f /var/log/cloudstack/agent/agent.log
2025-01-27 20:23:40,799 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (agentRequest-Handler-3:null) (logid:f60e79bc) Attempting to convert the OVF c7c4fe2c-4362-4482-a14d-c788e6278371 of the instance vm123 from VMware to KVM
2025-01-27 20:23:40,826 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) virt-v2v: virt-v2v 1.44.2 (x86_64)
2025-01-27 20:23:40,827 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) libvirt version: 8.0.0
2025-01-27 20:23:40,827 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) [ 0.0] Opening the source -i ova /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/
2025-01-27 20:23:40,827 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) ova: orig_ova = /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/, top_dir = /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371, ova_type = Directory
2025-01-27 20:23:40,843 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) cd '/mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371' && find -type f
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) virt-v2v: error: -i ova: OVF references file
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) ‘c7c4fe2c-4362-4482-a14d-c788e6278371-disk0.vmdk’ which was not found
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) in the OVA archive
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress)
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) If reporting bugs, run virt-v2v with debugging enabled and include the
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) complete output:
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress)
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) virt-v2v -v -x [...]
2025-01-27 20:23:40,850 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) rm -rf '/var/tmp/null.G0UmXs'
2025-01-27 20:23:40,854 INFO [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (Script-6:null) (logid:) (virt-v2v ovf source: /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ progress) libguestfs: closing guestfs handle 0x55d5d7f15c10 (state 0)
2025-01-27 20:23:40,857 WARN [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (agentRequest-Handler-3:null) (logid:f60e79bc) Execution of process [73029] for command [virt-v2v --root first -i ova /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ -o local -os /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09 -of qcow2 -on ef1f1603-1c83-4888-8f55-4a17feafb699 -v ] failed.
2025-01-27 20:23:40,857 WARN [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (agentRequest-Handler-3:null) (logid:f60e79bc) Exception [Stream closed] occurred when attempting to run command [virt-v2v --root first -i ova /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ -o local -os /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09 -of qcow2 -on ef1f1603-1c83-4888-8f55-4a17feafb699 -v ].
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:176)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:342)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:295)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:337)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:179)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:181)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:161)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:326)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:392)
at com.cloud.utils.script.OutputInterpreter.processError(OutputInterpreter.java:38)
at com.cloud.utils.script.Script.execute(Script.java:313)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtConvertInstanceCommandWrapper.performInstanceConversion(LibvirtConvertInstanceCommandWrapper.java:414)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtConvertInstanceCommandWrapper.execute(LibvirtConvertInstanceCommandWrapper.java:134)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtConvertInstanceCommandWrapper.execute(LibvirtConvertInstanceCommandWrapper.java:62)
at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78)
at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1929)
at com.cloud.agent.Agent.processRequest(Agent.java:683)
at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1106)
at com.cloud.utils.nio.Task.call(Task.java:83)
at com.cloud.utils.nio.Task.call(Task.java:29)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)
2025-01-27 20:23:40,858 ERROR [resource.wrapper.LibvirtConvertInstanceCommandWrapper] (agentRequest-Handler-3:null) (logid:f60e79bc) The virt-v2v conversion for the OVF c7c4fe2c-4362-4482-a14d-c788e6278371 failed. Please check the agent logs for the virt-v2v output

versions

The versions of ACS - 14.19.1.2
hypervisors - KVM
storage - NFS

The steps to reproduce the bug

1. in host where v2v is installed check agent logs
2. from cloudstack GUI, follow vmware to kvm migration process
3. vcenter create clone and after sometime migration fails with above error
   ...

What to do about it?

No response

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template!

[DaanHoogland]

@akshayfromcomhard , are all conversions failing for you or is this with a specific template?

[akshayfromcomhard]

Hi, All are failing. Please suggest, how can this be done. On Tue, 28 Jan 2025 at 12:34 PM, dahn ***@***.******@***.***>> wrote: @akshayfromcomhard<https://github.com/akshayfromcomhard> , are all conversions failing for you or is this with a specific template? — Reply to this email directly, view it on GitHub<#10284 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ARQWVKS4JTASBLA3UCFT6M32M4TWXAVCNFSM6AAAAABV6SMPN6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMMJYGA3TONBVGE>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[DaanHoogland]

can you try with the command line : virt-v2v --root first -i ova /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09/c7c4fe2c-4362-4482-a14d-c788e6278371/ -o local -os /mnt/c81c5de0-17e2-3259-a95e-f8dc6728ae09 -of qcow2 -on ef1f1603-1c83-4888-8f55-4a17feafb699 -v ?
you may need to replace some of the parameters.

[akshayfromcomhard]

Hi,

This gives error - No such file or directory
This means OVA is not getting copied in KVM host.

[DaanHoogland]

@akshayfromcomhard , can you copy the file by hand? (not as a workaround but as an invetigative step)

[akshayfromcomhard]

Hi,
Can you please share a command to do this?

[DaanHoogland]

use scp to copy the OVA to the KVM host.

[akshayfromcomhard]

Are these the steps? -

Steps for Manual OVA Migration Process
Step 1: Export the VM to OVA from vCenter/ESXi
Use the vSphere Client to export the VM as an OVA.
Right-click on the VM → Template → Export OVF Template.
Save the exported .ova file on your local machine or a network location.
Step 2: Copy the OVA to the KVM Host
Use the scp (secure copy) command to transfer the exported OVA to your KVM server.

Example Command:

scp /path/to/your-vm.ova user@kvm-host:/path/to/destination/

Replace /path/to/your-vm.ova with the actual OVA file path on your local system.
Replace user@kvm-host:/path/to/destination/ with your KVM server's username, IP, and destination path.

[DaanHoogland]

yes @akshayfromcomhard , this is good for testing if you can convert the OVA.

For trouble shooting the automated process you would wan't to export it to one of the storages.