Ignatios Souvatzis <is@netbsd.org> writes:
> On Sun, Mar 09, 2003 at 10:54:43AM -0500, Perry E. Metzger wrote:
> > > 2.  I seem to recall people doing read-only boot filesystems; is this as
> > > easy as I'd guess it would be (union mount an mfs filesystem over / early
> > > in the boot)?
> > 
> > Why do you even need the union mount?
> 
> $foo.pid files, for example. Socket files. In earlier times it also was
> device files, but init already creates a mfs for them if need is there.

Yah, but you can mount over /var and /tmp then not over / :)

I think embedded devices that want an r.o. / should keep it really
r.o. :)

Perry