milanp

Quite interesting!
If you try to explain your ultimate goal and the reasons that led you to this decision, perhaps I can give you some advice.

It's hard to argue with that.
But the squashfs file system is basically an opportunity to use a compressed root file system to save space.
 
If we set the task as ensuring fault tolerance of the root file system, then we need to perform a whole set of measures.
And mounting the root file system with the read-only flag is one of the points.
 
By the way, u-boot is able to work with the squashfs file system.
I thought your question was about that.
 
With respect.

There the option of “overlay file system”. It makes your file system “forget” anything that is changed since the snapshot, upon each poweroff 
 
look for it in armbian-config