windows server 2022 VM black screen after reboot. No login screen but I can ping and access file shares

[Ben Sommer]

it turns out the c:\windows\registration folder was missing. I recovered that folder and it booted but now a new question rises. How come when I shutted down windows normally and then rebooted proxmox hypervisor it ended up loosing that folder? Could it be that something was in the ZFS cache that was not committed to the disks and when I rebooted the hypervisor it was lost? If that is the case does proxmox ensures that all data is committed before it reboots?

Hi
I had the same problem witch my W2019 server. My vm was on a zfs volume too. I recovered the files too from an old backup. Here the way to mount the raw partition in pve, then you can copy the data with scp to the proxmox and extract them at the right place.
In my case it was the partition nr 4, so you had to use /dev/loop22p4

losetup /dev/loop22 disk-drive-ide0.raw
partx -v --add /dev/loop22
mount /dev/loop22p1 /mnt/123

Thx genesispro, you made ma day

Greetings from Berlin

Ben