> The problem with this filesystem is that it doesn't actually protect against power fails. Mostly you are OK, but not always. Power failure is a tough problem

> The problem with this filesystem is that it doesn't actually protect against power fails. Mostly you are OK, but not always. Power failure is a tough problem in embedded file systems (aka--too small for Linux). Effectively--you need to be "append-only with checksums at checkpoints". Every one of those words is anathema to making your flash small and cheap.