I have a Rpi 3B and have installed Octoprint several times. It all works well then next time I go to use it, the Pi won't boot. I have to re install the image onto the micro sd. I even tried restoring a backup, but that failed too.
So, here I am, up and working. What can I do to ensure this does not keep happening? It's version 0. 18.0
I have a Rpi 3B as well, running octopi 0.18.0 and I never had to reinstall the image. What you describe is not what generally people experience running OctoPrint on octopi.
It appears that something you do is very different from what most users do. And that results in a different experience.
But how can we know? You don't tell us much about your way of handling the pi, no logs, no steps to repro, not how you halt the system before turning off the power, not even a word on how you determine the pi didn't boot.
We can't read your mind (or your pi's syslog) so with the info you gave us, the answer to
The logs are found within the octopi OS when it is running.
I don't know what you are doing to boot, but on my Pi 4B it requires that I have a monitor attached to boot, otherwise the boot just hangs when trying to start the graphics. I don't have a 3B so don't know if it is the same, but you should definitely give us more info as to how you actually get it to finish booting.
A reinstall of the OS is certainly not required for booting.
From the Shutdown System command, next to the wrench symbol. To use the Pi again, I cycle the power plug and it starts flickering into life. However, often on doing this no green light, not even a flicker. It's as if there is no power. I tried putting the SD card into another pi and plugging it in, this time, a flicker of green light but no boot. Power supply checked, (it's original Rpi power plug) % volts fine.
I'm not sure how to view logs if the Pi won't boot? I re-flash the image onto the SD and it boots as normal. I generally leave the Pi powered on and it's not a problem. If I need to unplug it for any reason to move printer around, on re-powering the problem is usually there.
One person suggested he has to have a monitor connected for his Rpi to boot. This should run headless surely?
Thanks for the replies so far, even the sarcastic ones!