My version numbers are the same as Whonix ™ for KVM (click expand and scroll down to check version numbers).
Leaving
<rng model='virtio'>
<backend model='random'>/dev/random</backend>
</rng>
will result in this error
Error starting domain: unsupported configuration: this qemu doesn't support the rng-random backend
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 45, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 66, in tmpcb
callback(*args, **kwargs)
File "/usr/share/virt-manager/virtManager/domain.py", line 1114, in startup
self._backend.create()
File "/usr/lib/python2.7/dist-packages/libvirt.py", line 866, in create
if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: unsupported configuration: this qemu doesn't support the rng-random backend
Removing
<rng model='virtio'>
<backend model='random'>/dev/random</backend>
</rng>
suppresses that error, but as we agreed, this is no solution, rng should be enabled.
But there are 2 more debian stable related issues, that I will post in separate threads. So maybe we don’t have to make this change, but can fix the root of this issue.