Since posting my question above I found the following https://groups.google.com/forum/#!topic/qubes-users/23tna6I9gE4
It guided me to a solution which was to run rm -rf /var/lib/qubes/appvms/trim-debian-8 virsh -c xen:/// undefine trim-debian-8 qvm-trim-template debian-8 This fixes the problem. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/b1a97232-62a2-485e-8737-36d4dc109950%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
