[Nix-dev] A few questions from a NixOS newbie.

[Aristid Breitkreuz]

Remove the symlink "channels_root" from your ~/.nix-defexpr/ directory
and add a new symlink to your nixpkgs checkout. Like this:

$ ll ~/.nix-defexpr/pkgs
lrwxrwxrwx 1 aristid users 10 22. Mär 18:22
/home/aristid/.nix-defexpr/pkgs -> ../nixpkgs

To use 32-bit software, do NOT change your entire system. Instead, use
callPackage_i686Linux.

2014-04-21 14:44 GMT+02:00 Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk>:
> On 04/21/2014 02:35 PM, Aristid Breitkreuz wrote:
>> If you want to do a lot of changes or always want to use the newest
>> versions of things without waiting for them to appear in the channel
>> (which may take a few days), you probably want to use a checkout
>> instead of the channel. This can be achieved with an environment
>> variable:
>>
>> $ echo $NIX_PATH
>> nixos=/home/aristid/nixpkgs/nixos:nixpkgs=/home/aristid/nixpkgs:nixos-config=/etc/nixos/configuration.nix
>>
>> (This will not automatically affect nix-env, though it will affect
>> nixos-rebuild.)
>
> How can I get it to affect nix-env too? What is the way to set this
> globally, for all users? Namely, for my use-case, I'd like both root and
> my own user to use this checkout.
>
>> If you want to get any changes into the official repo, just use a
>> GitHub pull request on this repo: https://github.com/nixos/nixpkgs
>
> Great. Is the package I push in then my responsibility in the future to
> update?
>
>> Also, do not use i686-linux, there's no good reason to do so and it
>> gets far less attention from most developers.
>
> It made getting the 32-bit proprietary blob much easier to try and get
> working (which I have still not managed anyway). I'd welcome
> instructions to run 32-bit software on 64-bit NixOS so that I could move
> back to 64-bit. At the moment, 32-bit makes more sense to me.
>
>> And installing
>> glibc-2.17 with nix-env will NOT cause any other packages to actually
>> use it, you have to change the package's dependency with { glibc =
>> pkgs.glibc_2_17 } or so.
>
> Ah, OK, great!
>
>> Please excuse that I only answered some of
>> your questions.
>
> No problem, I do not expect anyone to know or post the answer to all of
> them.
>
>> Cheers,
>>
>> Aristid
>>
>> 2014-04-21 14:23 GMT+02:00 Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk>:
>>> [snip]
>
>
> --
> Mateusz K.
> _______________________________________________
> nix-dev mailing list
> nix-dev at lists.science.uu.nl
> http://lists.science.uu.nl/mailman/listinfo/nix-dev