Nested Virtualization VMWare Workstation

[lehnbe]

Hello all,
I have a Problem I definetly not understand.
I migrated a Windows 2022 server from VMWare to Proxmox.
Oracle Virtual Box runs fine on it. VMWare Workstation not.
Starting a VM in VM Workstation gives the error
"VMware Workstation and Hyper-V are not compatible. Remove the Hyper-V role from the system before running VMware Workstation."
followed by
"Transport (VMDB) error -14: Pipe connection has been broken."
The Hyper-V components are definetly not activated in the VM otherwise Oracle Virtual box would not work.
To be sure cat /sys/module/kvm_amd/parameters/nested gives 1 as result.
The config of the VM looks

agent: 1
bios: ovmf
boot:
cores: 2
cpu: host,hidden=1,flags=+svm
efidisk0: zPool01:vm-131-disk-0,efitype=4m,ms-cert=2023k,pre-enrolled-keys=1,size=1M
machine: q35
memory: 8192
meta: creation-qemu=11.0.3,ctime=1791265786
name: client02-sim
net0: virtio=BC:24:11:B9:F9:F2,bridge=vmbr1,firewall=1
numa: 0
ostype: win11
scsi0: zPool01:vm-131-disk-1,iothread=1,size=50G
scsi1: zPool01:vm-131-disk-2,iothread=1,size=600G
scsihw: virtio-scsi-single
smbios1: uuid=128dcb5c-7daf-4843-a508-3c25d8a42801
sockets: 1
vmgenid: 36e57fc2-77d1-4dbb-bb09-33ed7d7280f1

Any suggestion how to go on and troubleshoot? I am running out of ideas

Thanks

 

[6equj5]

Is VBS active? Or WSL?

 

[lehnbe]

No, both not. Linux Subsystem is not installed.

It is confusing that the Oracle Virtual box works. VMWare workstation does not.

 

[6equj5]

Latest version of VMW? At some point they had to fix something if I recall correctly.

Edit: I have ESXi as VM on one PVE (Intel) and it definitely can start VMs, e.g., vCenter Server. Also I have WS2K25 as Hyper-V on this PVE as VM and it can run W11. So ... in general it should be possible.

Maybe this helps (not tried): https://devopstales.github.io/virtualization/install-vmware-in-proxmox/