Hi! I have 3.8.1, a PC, and a 64Meg USB memory stick. I saw that 3.8 added the ability to use UnionFS to allow (effectively) persistent modification of any file in the filesystem, with the changes saved onto the USB memory stick.

The problem is, I've been searching the documentation and Google, and have been unable to find anything that says anything other than that I can do this. I have not been able to find anything that actually tells one HOW to do it.

Is there such a howto somewhere? Among the questions in mind are:

Do I need to do any special preparation of the memory stick?

Can I share use of the memory stick with other things?

Can the memory stick be FAT32 for use with Windows boxes and yet still work for this?

Do I need to tell Knoppix to go out and find the memory stick and start using it? How?

Does Knoppix find it automatically? At what point in the boot process? What script does it?

If I insert the memory stick after the boot process is finished, will it be used to overlay the file system, or is it recognized only at boot?

If I set this up on 3.8.1, will it still be good under 3.8.2, etc.?

Assuming some version in the future for which the UnionFS overlaying is not a good plan, can the memory be mounted as a regular filesystem to allow copying out the files, or is it stored in some kind of weird format?

That's about it, for now. Thanks!