Quoted from arakissun:I'm not paranoid,just this is my work and had and still see many HDD or Mainobards dies with this type of shutdown.
And yesterday too from a client after explained me how he shutdowned his machine before come to me for repair.
May be you have the luck,I don't want to risk anything,until it's HUO machine.
Quoted from wayout440:You are correct to find a graceful shutdown method for this system. It's a well known fact that linux based operating systems can get file structure damage if suddenly shutdown. I have an Ubuntu based MP3 jukebox that suffered from repeated shutdowns, it really started to display some odd boot behavior: trying to repair itself. dumping me to GRUB menus and more. Eventually I had to reinstall the operating system. The original RFM operating system might have had some kind of compensation for that, and engineered to accommodate a lifetime of power switch shutdowns.
Again personally, for many years I have been force shutting down Ubuntu and Arcade PC's without issues. So I find all of this a bit overkill. On top of that, we are talking about replacing a $10 harddrive. Just clone your harddrive and don't worry about it. But by all means, for people who want to go the extra-step and bullet proof pinbox I totally recommend it. But for people who are just getting into Pinbox, do understand this extra step is not required by any means.