But of course, like any immutable system, there are mutable parts (otherwise, we couldn’t create any configuration files). OSTree handles this with “overlays” (actually, we use OverlayFS) that allow a read-write filesystem to be layered on top of the immutable system. For example, the /etc and /var directories are writable, while the rest of the system is read-only.
Last year Adam Borucki discovered a piece of debris originating from a Space X rocket
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The Somerset couple set off in October last year, but after a stress fracture for Langley-Wathen, they were forced to stop after covering just 60 miles.