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Question

support of Proxmox Ve 9.0.18

  • November 20, 2025
  • 4 comments
  • 11 views

atinivelli
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Good day, I have a PVE 9.0.18 in my NUC, using local storage only. Yesterday I updated the VBR and Plugin to the very lastest versions. But..

Well, the Proxmox plugin still isn’t working for me… it’s really strange: I configured and tested the worker successfully;

I added a Windows VM (same subnet as the VBR, no firewall) to a job

If I run the credentials test, it fails because the VM is powered off (??)

The backup, even crash-consistent, also fails

For the credential test, I guess the error in the log is: 

“”aiting for file C:\ProgramData\Veeam\Backup\Plugins\PVE\Backup\PVE-Win_c1c3bce9-32d8-419d-b31a-6a63f6c6d2de\8fa94a5b-e558-4d50-bb67-241ff316ecab\PVE-Win.log to be unlocked”

for failed backup (hot add mode)

Failed to await the Backup task 444dd208-68ee-498c-aa5a-8282d85b2369: Veeam.Communication.TypeProvider.Invoke.RpcCallException: Failed to perform backup: Failed to prepare disks for backup”

 

what am I doing wrong?

4 comments

coolsport00
Forum|alt.badge.img+21
  • Veeam Legend
  • November 20, 2025

Hi Alessandro -

Markus posted a couple links on this in our V100 group:

https://www.veeam.com/kb4687

and

https://forums.veeam.com/kvm-rhv-olvm-pve-schc-f62/no-pve-hypervisor-workloads-after-inplace-upgrade-t101073.html

The forums post suggested an invalid certificate which may need changed.


atinivelli
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  • Author
  • Veeam Legend
  • November 20, 2025

it appears to be a different issue…
i think I’ll have to try opening a support case as it was a production environment.


coolsport00
Forum|alt.badge.img+21
  • Veeam Legend
  • November 20, 2025

Ah, ok. Interested to hear the resolution when you get one.

Thanks.


atinivelli
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  • Author
  • Veeam Legend
  • November 20, 2025

opened Case #07894154 🙋🏻