I have done it again! Trying to dual boot Mga9 with Windows.
Because I had updated Windows, some folders had new UUIDs, and Mageia couldn't find them. I tried to make them read by /dev/sd* as a temporary measure.
When I rebooted, my entry for /home didn't work, and my system booted with /home/ but no /home/doug.KI didn't want to rename /home as /home/doug. When I changed directory to /home, there was no subdirectory for doug, so I created one.
Now, I have two directories called doug, but only one entry in the indexes, and I cannot choose which one to navigate to. One of them is a brand new empty directory, with only the entries from /etc/skel. The other is the copy I want to keep. I recollect reading somewhere that I can distinguish them with UUIDs, but I can't remember the details.