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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big, but very few were installed by other banks. Collective memory of the 2984，这一点在谷歌浏览器【最新下载地址】中也有详细论述