Currently, when a VM is created with UEFI boot, the boot disk is automatically created in RAW format. This causes an issue when the storage backend is an LVM LUN, as RAW disks do not support snapshots in this configuration.

Requested enhancement:
Please add an option to specify the disk format (for example, QCOW2) for the UEFI boot disk during VM creation.

Benefits:

• Enable snapshot support for VMs stored on LVM-backed storage.
• Provide greater flexibility in storage configuration.
• Allow administrators to choose the most appropriate disk format based on their storage backend and operational requirements.

Current behavior:

• UEFI boot disk is always created in RAW format.
• Snapshot creation is not possible when the VM is stored on an LVM LUN.

Expected behavior:

• Allow administrators to select the boot disk format (RAW or QCOW2) when provisioning a UEFI VM.
• Ensure QCOW2 can be used as the boot disk format to support snapshots where applicable.