Extroot on USB and flash endurance

Hi Folks
Will using extroot or a pivot overlay result in constant run-time write cycles on the usb flash and reduce its life? I think not as /tmp should be RAM and /overlay should be read operations mostly correct?

You are correct. A typical system minimizes writes.

There are some edge cases with uncommon addon packages or poorly configured settings.

If your USB has an LED... you can easily see if something is running rogue. In most cases this will be caused by a user configuration error or custom script.

Not more than the internal flash would wear out if you hadn't installed extroot.

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