Why EFI Windows VM sometimes gets stuck at boot?

[Petbotson]

@Darkbotic our issues are most likely linked to this mega thread https://forum.proxmox.com/threads/windows-vms-stuck-on-boot-after-proxmox-upgrade-to-7-0.100744/

Funnily enough shortly after asking here, the VM booted.

I deleted the EFI-Disk and created a new one which dropped me into windows recovery mode. From there i reset the EFI Keys and after 30 Minutes or so the VM booted again.
Maybe i was just too impatient. Even though i'm normally used to VMs booting in seconds on my hardware.

Best regards

 

[Darkbotic]

@Darkbotic our issues are most likely linked to this mega thread https://forum.proxmox.com/threads/windows-vms-stuck-on-boot-after-proxmox-upgrade-to-7-0.100744/

Funnily enough shortly after asking here, the VM booted.

I deleted the EFI-Disk and created a new one which dropped me into windows recovery mode. From there i reset the EFI Keys and after 30 Minutes or so the VM booted again.
Maybe i was just too impatient. Even though i'm normally used to VMs booting in seconds on my hardware.

Best regards

I don't think you're impatient because this has happened to me several times while I'm sleeping and I wake up to the VM stuck for 6+ hours and as soon as I force a reset, it boots back up.

Even though it got fixed when you removed the EFI disk, you can definitely expect this to happen again in the future.

 

[Darkbotic]

I don't think you're impatient because this has happened to me several times while I'm sleeping and I wake up to the VM stuck for 6+ hours and as soon as I force a reset, it boots back up.

Also, be aware it's not just Windows. I have a Debian VM installation with EFI and the same thing happens.

 

[patrick.pesegodinski]

Hello everyone,

I've been noticing that sometimes, my Windows VM's with an EFI boot on Proxmox sometimes fail to fully boot/load.
When that happens, they always get stuck on this exact same screen:

View attachment 75439


This happens on different Proxmox nodes (not clustered) with different versions of Windows (10, 11 and Server).
Why does that happen?

Thanks in advance!

I have the same problem with VM Windows Server 2016.

 

[Darkbotic]

I just tested with a different computer.
I installed Proxmox 8.3.0 and installed a new Debian VM with EFI (OVMF) and the i440x machine type.

I then kept powering down and powering up the computer over and over again.

After a while, it happened again so it looks like the issue is not related to q35.