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default.nix: Provide correct instructions how to upgrade Nix

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Supersedes #17631.
This commit is contained in:
Tuomas Tynkkynen 2017-03-18 21:04:07 +02:00
parent cba956152f
commit 2e91b2d585
1 changed files with 11 additions and 1 deletions
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12
default.nix
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@ -2,7 +2,17 @@ let requiredVersion = import ./lib/minver.nix; in
if ! builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
abort "This version of Nixpkgs requires Nix >= ${requiredVersion}, please upgrade! See https://nixos.org/wiki/How_to_update_when_Nix_is_too_old_to_evaluate_Nixpkgs"
abort ''
This version of Nixpkgs requires Nix >= ${requiredVersion}, please upgrade:
- If you are running NixOS, use `nixos-rebuild' to upgrade your system.
- If you installed Nix using the install script (https://nixos.org/nix/install),
it is safe to upgrade by running it again:
curl https://nixos.org/nix/install | sh
''
else