I'm running Linux Mint and I'm trying to edit my symbol files but none of the changes stick - I've tried restarting X and restarting the computer. Eventually I got frustrated and tried deleting the symbols directory (well, moving it to the parent directory), and if that had made a difference I'd revert the change using a TTY. I restarted the computer but I can still type - why is that?
More information: the only directories I have found relating to xkb (I used locate xkb), are those in /usr/share/X11/xkb and its subdirectories, and so these are the files I've been editing.