fix nix-build trouble after fresh install:
problem: Nix only recognizes nixbld users which have nixbld set in extraGroups. After installation the user was created by activate with group='nixbld' and extraGroups=[] After rebooting a conditional shell script fixed this by adding extraGroups=["nixbld"]. This patches creates the user they way it was in the past with group='nobody' and extraGroups=["nixbld"]. Another solution would be making nix be aware of the primary group as well. However this would require everyone to update Nix after updating NixOS. svn path=/nixos/trunk/; revision=18985
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@ -32,8 +32,8 @@ let
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calls in `libstore/build.cc', don't add any supplementary group
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here. */
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uid = builtins.add ids.uids.nixbld nr;
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group = "nixbld";
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extraGroups = [];
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group = "nogroup";
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extraGroups = ["nixbld"];
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};
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nixBuildUsers = map makeNixBuildUser (pkgs.lib.range 1 10);
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@ -213,16 +213,6 @@ in
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--groups "$extraGroups" \
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''${home:+--home "$home"} \
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--shell "$shell"
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if test -z "$extraGroups"
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then
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# Make sure the user is listed as belonging to its
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# primary group when it has no supplementary groups. The
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# main reason is to have the `nixbld[0-9]' users be
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# listed as `nixbld' members; this allows `nix-store' to
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# get the UIDs of all the build users by doing a
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# getprnam("nixbld") call.
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groupmod "$group" -A "$name"
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fi
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fi
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done
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