While it’s recommended to wait for the update that implements a new miner, If you want to manually update you’re free to do so, but you need to know some basics of Linux cli (download/copy/extract files)
Typically if this is beyond your scope of current abilities I’d recommend to wait as there’s potential to Bork other things while poking around.
With that being said, letter case and spelling must match. List the directory to see the exact spelling, run the commands from the shell and it will typically tell you where to look if you’re misspelling something.
