2023-12-10 15:57:18 +00:00
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# NixOS {#sec-nixos-state}
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NixOS itself obviously needs `/nix` to be persistent, so the system environment
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can be linked from the nix store during activation.
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Moreover, `/boot` should also be persistent, as it contains the kernel, initrd,
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and the command-line determining the system environment's path in the nix store.
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2023-12-12 11:26:00 +00:00
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## Users and groups {#sec-state-users}
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- `/var/lib/nixos` should persist: it holds state needed to generate stable
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uids and gids for declaratively-managed users and groups, etc.
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- `users.mutableUsers` should be false, *or* the following files under `/etc`
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should all persist:
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- {manpage}`passwd(5)` and {manpage}`group(5)`,
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- {manpage}`shadow(5)` and {manpage}`gshadow(5)`,
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- {manpage}`subuid(5)` and {manpage}`subgid(5)`.
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