Thanks for the above solution! It does work, but on my Pi it's kinda slow, and I was wondering if there's a reason we can't just copy the files from the SSD card (which is what got the updated boot files) to the SD card (which is what really boots)?

I see that the "locked cards don't show up" is already reported as issue #59 on GitHub. I didn't realize this was open source, I will look there first in future!

One final comment: If you want to do even less coding, you don't really need to define and hook up a handler for the signal. Just send it, and signal.pause() still exits. In my test code, above, I did that and it works, but I do get a message on screen that User defined signal 1 was received. /rob

OK, I think I found the answer. According to the docs https://docs.python.org/3/library/signal.html signal.pause() Cause the process to sleep until a signal is received; the appropriate handler will then be called. Returns nothing. So all you have to do is ... send yourself a signal. You don't even ...

I see that someone - the OP? - marked this as "[SOLVED]", but at best what I see here is a workaround. Does anyone know how to actually solve it? I have the same problem. I have a headless Pi running some software for a MIDI project of mine. I attached a button (to GPIO pin 7) so that I ca...

I just ran into this problem - my SD card wasn't recognized by Imager, even tho everything else on my Windows machine could see it. Then I noticed the card - an old-school full-sized SD card, not a micro card - was locked: the little tab on the side was set to the 'locked' position. I unlocked it, t...

I just ran into this problem, and I didn't find any real solution.... except rebooting seems to have fixed it. I assume you probably tried that (it's kind of a Windows-y, half-assed solution, no?) but just in case this encourages someone else with the same problem to try rebooting, here it is. Of co...