I would just like to say THANK YOU VERY MUCH for this!
I downloaded the beta .ISO this morning, and successfully restored a single file off a backed up NSS volume this afternoon.
I only ran into one issue - the kernel on the .ISO requires a 64 bit CPU. On my first attempt I tried launching the FLR appliance on my oldest and least used VMWare host. I thought the process was hung until I looked at the console for the FLR appliance. The full error was:
This kernel requires an x86_64 CPU, but only detected an i686 CPU.
Unable to boot - please use a kernel appropriate for your CPU.
I powered off the FLR appliance and removed it from inventory, then stopped the job. I realized soon after that I probably should have stopped the job first.
After I got the first job cleaned up, and tried again on a host with real hardware, the restore worked like a charm.