On Fri, 16 Feb 2007 00:38:23 +0000 (UTC)
Geoff Wing <mason@primenet.com.au> wrote:

> David Young <dyoung@pobox.com> typed:
> : On Thu, Feb 15, 2007 at 11:55:51PM +0000, Geoff Wing wrote:
> :> It doesn't have whitespace objects (so you can't do upper layer
> union mounts :> with it).
> : Do you use union mounts in this way on /dev/, today, or is this
> purely : hypothetical? 
> 
> I personally don't.  Does fdesc work OK?
> 
> :                I ask because I have never been able to rely on union
> : mounts for anything, although it is my understanding that reliably
> may : have improved with recent changes by Chuck Silvers.
> 
> This is not really related to your proposed change however I use union
> mounts mfs over ffs every time I build a kernel or build pkgsrc stuff.
> (Using mfs I can always start with a clean slate.)  And union lfs on
> ffs for building the main src tree.  It works beautifully for my
> needs.

I can report that using null mounts is not a problem with tmpfs,
I've been using it for months with mklivecd... dunno about union
mounts.

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