How to use vm-bhyve image create?

As per the [Documentation](https://www.freebsd.org/cgi/man.cgi?query=vm&sektion=8&manpath=freebsd-release-ports) it will create a new image from the named virtual machine you pass. It should look like this: vm image create -u VMNAME After executing that command as root I get this error: vm: ERROR: failed to create snapshot of source dataset root/vm/VMNAME@gdee65d I found no information or similar problem. Update: The goal here is to create an image/iso file of a running vm and migrate it to a cloud, which accepts only custom iso files.