Ok, new info. I did not realise that knoppix has been supporting such features. After what you have posted, with some checking/reading, I finally know what you are talking about.

I think it's very likely what you say are all true but all these are no more important with pcmanfm2. Maybe not immediately, but soon ( as I am using it now, compiled from git source ). With pcmanfm2 and the right version of associated libraries, it's not necessary to scan the disk partitions using knoppix code (scanpartitions and rebuildfstab ) and therefore no need to have udev to execute those knoppix rules and generate /etc/fstab. Pcmanfm2 probably does not even bother with /etc/fstab. Pcmanfm2 has an option to show internal volumes or hide internal volumes. When internal volumes are shown, of course you will then be able to manage them accordingly using the GUI. At the same time, it manages dynamic ( usb ) volumes too.

So in the mean time, maybe you can hold off your udev upgrade. Just wait until the right version of pcmanfm2 hits the street.