Can't create VM with Proxmox 4.3+ZFS: create failed - unsupported format 'qcow2'

[t-ray]

When attempting to create a VM against Proxmox 4.3 and Proxmox is configured with a ZFS filesystem the create operation fails with the message:

create failed - unsupported format 'qcow2'

Here is an excerpt from my Vagrantfile

config.vm.provider :proxmox do |proxmox|
        proxmox.endpoint = '<redacted>'
        proxmox.user_name = '<redacted>'
        proxmox.password = '<redacted>'
        proxmox.vm_id_range = 900..910
        proxmox.vm_type = :qemu
        proxmox.vm_name_prefix = 'vagrant_'
        proxmox.qemu_os = :l26
        proxmox.qemu_disk_size = '30G'
        proxmox.qemu_storage = 'local'
        proxmox.qemu_iso = '/var/lib/vz/template/iso/ubuntu-14.04.5-server-amd64.iso'
        proxmox.vm_name_prefix = 'vagrant_test_'
        proxmox.qemu_cores = 1
        proxmox.qemu_sockets = 1
        proxmox.qemu_nic_model = 'virtio'
        proxmox.qemu_bridge = 'vmbr0'
        proxmox.vm_memory = 512
    end

I believe the error due to the embedded 'format=qcow2' in the create_params_qemu function in create_vm.rb. I suggest making the format another argument, rather than hardcoding it. I would submit a pull request, but I'm not a ruby guy and I have no idea how to even setup an environment for development.

According to the proxmox api viewer at http://pve.proxmox.com/pve-docs/api-viewer/index.html, the "sata" parameter supports a subparameter named "format" of type , but the actual enumeration values are not listed. From reading other things online, I infer the preferred format in this case should be "raw".

[denysvitali]

You may want to check out my branch, specifically the version 0.12+.
I've fixed the issue, you may need to add proxmox.qemu_storage = 'raw' once you have installed the new gem with vagrant plugin install vagrant-proxmox-0.0.12.gem