On Mon, Mar 02, 2026 at 11:47:25PM +0000, Pattled Buquor wrote: > Does anyone here have some advice/idea/experience on how to do immutable > systems with OpenBSD?
If you're new to OpenBSD, it would be much better to get some experience with a 'regular' installation first. Essentially everything you are asking about is _possible_, but when it eventually breaks you'll have difficulty fixing it unless you know OpenBSD inside out. > Something I found that may be part of a solution is `union_mount`. This > seems to be like OverlayFS on Linux. The problem is that the feature > seems to have disapeared from OpenBSD in release 3.8, even if I couldn't > find any mention of it in the changelogs (I may have missed it). It was indeed removed from OpenBSD a long time ago. It's still in recent versions of NetBSD, so if you are curious to see how it works on a BSD system that would be the easiest way to experiment.
