Quote Originally Posted by GunSmoke
Yep. I could mount knoppix UNIONFS and ramdisk with your methods.

But still have a problem.

I made some files on server, and exported /testroot.

ex) touch /home/knoppix/test

As U know, executing above order /UNIONFS/home/knoppix/test and /ramdisk/home/knoppix/test are created.

But I couldn't find my files on client knoppix.
You're right. I cannot find the file either. I did checked all the directories read/write/exec bits and they all look OK to me.

Have no idea why this happen, my wild guess is the UNIONFS limitation.

I tried a work-around by creating the structure like: /testroot/home/knoppix and tried to change the user knoppix default home to it, it failed too.

Code:
$ sudo usermod -d /testroot/home/knoppix -m knoppix
The command finished without complain. It just happens that knoppix home is not changing.

Rgds,
Chip