I am building a ubuntu 20.04 server using the raspberry pi image. one of the big weaknesses of the pi is that it is using an sd card as the main drive. This tends to lead to a dead device after a period of time due to the card failing due to writing.
Raspbian or pi os now includes an easy way - flicking a switch - to add a union fs - a writable layer over a read only layer - on the sd card. I believe they are using OverlayFS. I am wondering whether Ubuntu has the equivalent or if there are easy ways to implement. In my looking I have failed to find anything specific to the pi.
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