Thank you Harry, I did more research, and found that version 3.81's cheat code for home is different from what it was in 3.7. It now says:

knoppix home=/mnt/sda1/knoppix.img "Mount loopback file as /home/knoppix"

So Knoppix apparently tries to mount a loopback file instead of a real partition.

It appears that I ought to back up all the files on my flash memory drive,
create a persistent home directory (a knoppix.img file),
mount knoppix.img using the loopback option,
copy all my old home/knoppix files back to it,
then reboot using the new cheat code,
although I might have to use /dev/uba1/knoppix.img instead of /dev/sda1/knoppix.img.


Does anything in the documentation describe the above process?

Does anything in the documentation definitely say that knoppix/home must now be a loopback?

Does anything in the documentation explain why /dev/sda is now /dev/uba?