File systems

[Mike McNally]

Is it true that the root file of a file system can be a regular file?
It doesn't seem like mkfs can make such a thing, but I can't see anything
about mount(2) that would disallow it.  If this is true, where's it
documented?

I am specifically interested in 4.[23], but if SV has this feature
I'd like to know.

-- 
Mike McNally of Lynx Real-Time Systems

uucp: lynx!m5 (maybe pyramid!voder!lynx!m5 if lynx is unknown)