> Another approach is to manage only one changes module. On boot this
> module is extracted to /cow (RAM), so following writes are made to /cow.
> On shutdown, this /cow is compressed again and saved on casper directory.
> In this approach cons are RAM consumption and slow shutdowns because of
> the big compressions.
...and since it only write once per run on the usb-stick, it doesn't
shortcut its life; so I would be in favour of having this.
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