Virtual infrastructure
Virtual disk conversion for Proxmox
Most “online converters” ignore hypervisor disks. The public SERP for VMDK to QCOW2 is still full of qemu-img command lines and Proxmox forum threads. These pages are the product path: upload the disk, convert in isolation, download a QCOW2 you can import.
Hypervisor to QCOW2
Each source is a different container: VMware VMDK, Hyper-V VHDX, VirtualBox VDI, OVA appliances. The destination is the same Proxmox-friendly disk, the failure modes are not.
Also in the disk worker
RAW, VHD and reverse QCOW2 pairs run from the home converter. They do not get thin clone pages.
VHD → QCOW2 · RAW → QCOW2 · QCOW2 → QCOW2 · QCOW2 → RAW · QCOW2 → VMDK
Questions
Does this recreate the whole VM in Proxmox?
No. We convert the disk image. CPU, NICs and cloud-init stay a Proxmox import step. Use importdisk, then attach.
Why not qemu-img on a laptop?
You can. This path is for isolation, a validation check, and disks you would rather not unpack on a workstation.