configuration.nix: Document the stateVersion more

(cherry picked from commit 8efb46b)
NixOS · Aug 31, 2017 · 1664e69 · 1664e69
1 parent 7a15de1
commit 1664e69
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/nixos/modules/installer/tools/nixos-generate-config.pl b/nixos/modules/installer/tools/nixos-generate-config.pl
@@ -618,8 +618,11 @@ sub multiLineList {
   #   uid = 1000;
   # };
 
-  # The NixOS release to be compatible with for stateful data such as databases.
-  system.stateVersion = "${\(qw(@nixosRelease@))}";
+  # This value determines the NixOS release with which your system is to be
+  # compatible, in order to avoid breaking some software such as database
+  # servers. You should change this only after NixOS release notes say you
+  # should.
+  system.stateVersion = "${\(qw(@nixosRelease@))}"; # Did you read the comment?
 
 }
 EOF