> On Apr 20, 2016, at 3:08 PM, [email protected] wrote:
> 
> OS's don't support foreign file systems. What they do is provide the ability 
> to access a drive that does not have what they believe to be a valid file 
> system. 

Not necessarily.  RSTS does in the latest versions, but not in early versions.  
For example, RSTS V4A has no raw disk API, and gives you no access to any disk 
except via the RSTS file system.  The same goes for some other operating 
systems; I don't know of raw disk access on CDC NOS either, for example.  
(Well, not unless you write a PPU program; if you don't mind doing that, the 
job is easy.)

        paul


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