On Wed, 07 Feb 1996 10:59:55 -0500 
 "Perry E. Metzger" <perry@piermont.com> wrote:

 > Hold on a second, folks.
 > 
 > I thought that the whole point of a ram disk was that it allocated
 > real memory and an MFS allocated virtual memory, thus making the ram
 > disk suitable for things like installs and MFS suitable for every day
 > use. Am I crazy here?

Actually, I think it can do either.  For intalls, a small 
machine-dependent chunk of the driver allocates (turned on my a kernel 
option) a chunk of the data segment, which a separate program later 
injects an image into for use when the kernel boots.  Hoever, the ramdisk 
can also use memory in the same manner as MFS.

--------------------------------------------------------------------------
Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
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