> You, Ray_Van_Tassle-CRV004@email.mot.com write:
> >
> > "union fs"??? What's a union fs?
> > One that costs too much and stops working at the drop of a hat, perhaps?
> >
> A union file system can be mounted over another read 0only file system.
> The files underneath show through until you modify one, at which time
> the midifyed file is written to the union fs. This allows you to, for
> instance, compile a kernel on a mounted cdrom drive, where the object
> files would be written onto the union fs over layed on it.
That's if you are mounting read-write over read-only. You could also have
read-write over read-write, with either preferential or balancing techniques
to say where modified files go, then of course read-write over read-only over
read-only, and all the other fun combinations. It's not just for making CD's
writeable.
It _would_ be nice to have something like this built into the kernel.
> --
> Artificial Intelligence stands no chance against Natural Stupidity.
> GAT d- -p+(--) c++++ l++ u++ t- m--- W--- !v
> b+++ e* s-/+ n-(?) h++ f+g+ w+++ y*
-- Kenneth Albanowski (kjahds@kjahds.com, CIS: 70705,126)