Thanks, Karnage.
From another thread:
I’m guessing that my issue here is as you suggested and as Spinner has confirmed.
At this stage I’m just curious as to why this only happens sometimes? If across multiple installations that install media and files are identical, and the HDD is always formatted, how can the HDD sometimes be read-only and sometimes work? Perhaps the install script has some sort of timeout that gets skipped depending on the timing or response of files?
In any event, no matter. I am happy to wait until a revised version comes along 