Serial value not recognized in guest VM

[maiconjs]

I'm trying to manually enter a serial number into a VM because I need to run an application that depends on reading this SMBIOS value on Windows Server 2022, but when I enter this value the OS still shows a blank value when checking via wmic bios get serialnumber



Am I doing something wrong or is it a bug? How can I fix it?

 

[jsterr]

I'm trying to manually enter a serial number into a VM because I need to run an application that depends on reading this SMBIOS value on Windows Server 2022, but when I enter this value the OS still shows a blank value when checking via wmic bios get serialnumber

View attachment 59688View attachment 59689

Am I doing something wrong or is it a bug? How can I fix it?

Did you stop and start the vm after adding the serial?

 

[maiconjs]

Yes, I restarted it but it didn't show.

 

[jsterr]

Yes, I restarted it but it didn't show.

It worked first try. But I stopped the vm and started it. So it was down completly, not rebooted. Maybe try again with shutdown + start?

 

[maiconjs]

This time I stopped the machine instead of restarting and it had no effect. Then I restarted all of proxmox, and there was no effect either.

 

[jsterr]

Can you post the vm config with qm status <VMID> ?

 

[maiconjs]

Can you post the vm config with qm status <VMID> ?

 

[bbgeek17]

I think @jsterr meant "qm config <VMID>.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[maiconjs]

Here:

 

[bbgeek17]

is this the serial number you expect?

BRJ8634C2

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[maiconjs]

is this the serial number you expect?

BRJ8634C2

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

Exactly

 

[bbgeek17]

Do:
qm stop 120
qm status 120 (confirm its stopped)
qm start 120
When its booted - run "wmic bios get|findstr BRJ"

that will tell you if anything is present. I know you said you have one VM, still please confirm you are on the right VM.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[maiconjs]

I did as described and went a little further, I saw that there were updates to be made to proxmox and I applied them. I restarted proxmox once again and the guest VM is still not receiving the serial number.

 

[bbgeek17]

I am not a Windows VM daily user. Its possible the issue is in your VM OS.
I'd recommend doing a few more tests : install another windows VM and confirm the behavior, install a Linux VM and check there

Good luck

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[fiona]

Hi,
please see here: https://forum.proxmox.com/threads/uuid-lost-after-changing-machine-type.136942/
https://lists.nongnu.org/archive/html/qemu-devel/2023-11/msg05751.html
A workaround is either using OVMF to boot or pinning the machine version to 8.0.