How to make filesystem become power lost proof

we have run a system unattended for everyday ‘kiosk’ use
However, the system may be powered off anytime without someone doing a proper shutdown before.
Does current sample roofs provide some method make it power lost proof, if not,how to make ubuntu 18.04 system keep stable in this AC power directly lost case ?

I mean user will not use “power off” button , directly shut down the power.

• Hardware Platform (Jetson / GPU) Jetson Xavier Nx
L4T 32.6.1
• DeepStream Version 6.0
• JetPack Version (valid for Jetson only) 4.6

hello stephen.xi,

please check Jetson Xavier NX Product Design Guide for chapter-5.1 [Power Supply and Sequencing], there’s handling for sudden power loss to protect the SOC from hardware side.
however, it doesn’t supports ensure user-space content, i.e. it’s expect to crash the user-space data if you’re forced powered-off during file writing.

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