> What's the output of (normal user) > $ nix-channel --list Well, it's empty.
> To inspect your system state, try to run >> nix-instantiate --eval --expr --strict "<nixpkgs>" /nix/store/bc71r4k7bms0ykfl5zxgww1fi3kb0jdw-nixos-15.09.1180.e8e1cb8/nixos/nixpkgs >> nix-instantiate --eval --expr --strict "<nixos>" /nix/store/bc71r4k7bms0ykfl5zxgww1fi3kb0jdw-nixos-15.09.1180.e8e1cb8/nixos/nixos >> sudo nix-instantiate --eval --expr --strict "<nixpkgs>" /nix/store/bc71r4k7bms0ykfl5zxgww1fi3kb0jdw-nixos-15.09.1180.e8e1cb8/nixos/nixpkgs >> sudo nix-instantiate --eval --expr --strict "<nixos>" /nix/store/bc71r4k7bms0ykfl5zxgww1fi3kb0jdw-nixos-15.09.1180.e8e1cb8/nixos/nixos ><nixpkgs> gets evaluated in the context of the current user, so you will get very different results when using sudo. Nah, they look pretty much the same. > Now, there is no reason for the attribute returned by `nix-env -f "<nixpkgs>" -qaP` to be missing when calling `nix-shell "<nixpkgs>" -p` because the nixpkgs are exactly the same. Yep, probably this explains something. >> nix-env -qaP -f "<nixpkgs>" | grep letsencrypt >> So, what are the best practices of having nixos and nixpkgs-unstable channels? Should root user be subscribed to nixos and the normal user to nixpkgs one? On 31 March 2016 at 11:46, Guillaume Maudoux (Layus) <[email protected]> wrote: > Hmm.. could it be that your system is confused by multiple channels ? > > What's the output of (normal user) > $ nix-channel --list > > I think your best bet is `nix-shell "<nixpkgs>" -p letsencrypt` > where nixpkgs is your channel name. > > You can even go further and set the nixpkgs path directly using > nix-shell > /nix/store/7kxsv9svwcaxzkxxjg0zxcb151mic8vw-nixos-16.03pre76756.885acea/nixos/nixpkgs > -p letsencrypt > > nix-env can also take such a path > > To inspect your system state, try to run > $ nix-instantiate --eval --expr --strict "<nixpkgs>" > $ nix-instantiate --eval --expr --strict "<nixos>" > $ sudo nix-instantiate --eval --expr --strict "<nixpkgs>" > $ sudo nix-instantiate --eval --expr --strict "<nixos>" > > <nixpkgs> gets evaluated in the context of the current user, so you will > get very different results when using sudo. > > To ensure a consistent result, you can also pass the nixpkg tree to > nix-env with option -f. > $ nix-env -qaP -f "<nixpkgs>" > > Now, there is no reason for the attribute returned by `nix-env -f > "<nixpkgs>" -qaP` to be missing when calling `nix-shell "<nixpkgs>" -p` > because the nixpkgs are exactly the same. > > All this highlights the inconsistency between (and within) the tools. > But that's another story :-). > > Layus. > > Le 31/03/16 11:25, Dmitry Malikov a écrit : > > >> nix-shell -p nixpkgs.pkgs.letsencrypt > error: undefined variable ‘nixpkgs’ at (string):1:66 > (use ‘--show-trace’ to show detailed location information) > > Any other ideas? > > On 31 March 2016 at 10:37, Arseniy Seroka <[email protected]> wrote: > >> nix-shell -p nixpkgs.pkgs.letsencrypt >> >> -- >> Sincerely, >> Arseniy Seroka >> >> On 31 March 2016 02:21:40 Dmitry Malikov < <[email protected]> >> [email protected]> wrote: >> >>> >> sudo nix-channel --list >>> nixpkgs https://nixos.org/channels/nixpkgs-unstable >>> nixos https://nixos.org/channels/nixos-15.09 >>> >>> >> nixos-version >>> 15.09.1180.e8e1cb8 (Dingo) >>> >>> >> nix-env --version >>> nix-env (Nix) 1.10 >>> >>> Anything else? >>> >>> On 31 Mar 2016, at 00:45, Jonn Mostovoy < >>> <[email protected]>[email protected]> >>> wrote: >>> >>> Just worked for me, exactly the same command. >>> My version of nixpkgs is way older though. >>> On Mar 31, 2016 12:40 AM, "Dmitry Malikov" < <[email protected]> >>> [email protected]> wrote: >>> >>>> >> >>>> nix-env -qaP '*' | grep letsencrypt >>>> nixpkgs.letsencrypt >>>> letsencrypt-0.4.0 >>>> >>>> >> nix-shell -p letsencrypt >>>> error: undefined variable ‘letsencrypt’ at (string):1:66 >>>> (use ‘--show-trace’ to show detailed location information) >>>> >>>> >>>> What am I missing here? >>>> >>>> _______________________________________________ >>>> nix-dev mailing list >>>> [email protected] >>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev >>>> >>>> >>> _______________________________________________ >>> nix-dev mailing list >>> [email protected] >>> http://lists.science.uu.nl/mailman/listinfo/nix-dev >>> >>> > > > _______________________________________________ > nix-dev mailing > [email protected]http://lists.science.uu.nl/mailman/listinfo/nix-dev > > > > _______________________________________________ > nix-dev mailing list > [email protected] > http://lists.science.uu.nl/mailman/listinfo/nix-dev > >
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