Simon Hobson writes:
Or the third option - mount r/o and remount r/w when needed. IIRC you can switch an already mounted filesystem from r/o to r/w 'on the fly' (ie without unmounting it first) - is the reverse possible (ie change a r/w mount to r/o) ?

Yes. mount -o remount,ro. I've done that more than once on android (remounting like that is how you get rid of the tasteless and/or annoying boot animations most vendors like).

Arnt
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