Windows VM fails to boot from installation Image

Community Support
1

Hi, just finished the installation of OpenNebula. Running frontend on a VM and KVM node on physical hardware. Both systems running Debian12 and OpenNebula 6.10.01.
I am trying to install a Windows VM, initially I was trying to install Server 2025 following:
https://support.opennebula.pro/hc/en-us/articles/360042898271-How-to-Build-an-Image-for-Windows-Virtual-Machines
Bootsequence starts off with the Installation ISO and fails to load and start the installation process. So, I re-downloaded the installation ISO, same behavior.
Then I switched to Windows11, used a Image we have used multiple times to install Hardware and VM, also fails. Boots and gets stuck before the installation menu is loaded.

Am I missing something here?

Versions of the related components and OS (frontend, hypervisors, VMs):

Steps to reproduce:

Current results:

Expected results:

2

Hi,
just out of curiosity I changed the installation media from the template I created and its now using a Ubuntu24.04 ISO. I can boot and install a VM from it without any issues. So why would it be an issue with a Windows OS but not for a Linux OS?

3

Hello @aglandorf,

There are some old posts on this forum that might help you a bit:

In any case, a log would be useful, you can check the OpenNebula log by using this command to check:
tail -f /var/log/one/<VM_ID>.log

Hope it helps.

Cheers,

4

Blockquote
Tue Apr 1 07:56:16 2025 [Z0][VM][I]: New state is ACTIVE
Tue Apr 1 07:56:16 2025 [Z0][VM][I]: New LCM state is PROLOG
Tue Apr 1 07:58:07 2025 [Z0][VM][I]: New LCM state is BOOT
Tue Apr 1 07:58:07 2025 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/7/deployment.0
Tue Apr 1 07:58:08 2025 [Z0][VMM][I]: Successfully execute transfer manager driver operation: tm_context.
Tue Apr 1 07:58:08 2025 [Z0][VMM][I]: Successfully execute network driver operation: pre.
Tue Apr 1 07:58:08 2025 [Z0][VMM][I]: ExitCode: 0
Tue Apr 1 07:58:08 2025 [Z0][VMM][I]: Successfully execute virtualization driver operation: /bin/mkdir -p.
Tue Apr 1 07:58:09 2025 [Z0][VMM][I]: ExitCode: 0
Tue Apr 1 07:58:09 2025 [Z0][VMM][I]: Successfully execute virtualization driver operation: /bin/cat - >/var/lib/one//datastores/0/7/vm.xml.
Tue Apr 1 07:58:09 2025 [Z0][VMM][I]: ExitCode: 0
Tue Apr 1 07:58:09 2025 [Z0][VMM][I]: Successfully execute virtualization driver operation: /bin/cat - >/var/lib/one//datastores/0/7/ds.xml.
Tue Apr 1 07:58:10 2025 [Z0][VMM][I]: ExitCode: 0
Tue Apr 1 07:58:10 2025 [Z0][VMM][I]: Successfully execute virtualization driver operation: deploy.
Tue Apr 1 07:58:10 2025 [Z0][VMM][I]: Successfully execute network driver operation: post.
Tue Apr 1 07:58:10 2025 [Z0][VM][I]: New LCM state is RUNNING

Blockquote

grafik
grafik1912×1082 73.8 KB

Blockquote
Its really weird. There seems to be nothing wrong within the log but after the initial boot from the Installation media it just hangs at the boot screen.