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.
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“We’re not exactly happy with the way they [Iran] negotiated. They cannot have nuclear weapons, and we’re not thrilled with the way they’re negotiating,” Trump told reporters.
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Leigh Greer, head of market regulation at the Utility Regulator said it would continue to monitor the regulated tariffs to make sure any further falls in costs are passed through to customers.