Ok.

Knoppix did sense the presence of the new drive. But it did not update the fstab file -- although it did insert a line reading "usbdevfs" in fstab. Curious.

I could open K3B settings and see that it the drive was being recognized as

/dev/scd2

as I already had two other CDRom devices installed internally. I could insert a music CD and K3B would correctly identify it. That was a relief.

But I could not see the drive in the file manager.

All I had to do at that point was create a mount directory and update fstab so that the drive could be mounted. Thus:

/mnt/usbdevfs

Then update fstab with a line:

/dev/scd2 /mnt/usbdevfs (then copying and inserting here the parameters from the other CDrom devices.

Sorry I'm at work as I write this. So I can't open the fstab file to complete the line with all the noauto, rw, etc.

sakiZ