[Nix-dev] Providing more explicit nix installation instructions

[Florian Friesdorf]

Vladimír Čunát <vcunat at gmail.com> writes:
>>> # Now this is the problem:
>>> $ sudo nix-channel --add http://nixos.org/channels/nixpkgs-unstable
>>>
>>> That created the file $HOME/.nix-channels in my USER home, but with
>>> owner root.  Obviously not the correct behavior.  The following `sudo
>>> nix-channel --update` failed (sorry, don't have the error message
>>> anymore).  Any suggestions for a better way to do this?
>>
>> sudo -H (see man sudo)
>
> I believe nix-channel --add is supposed to be run *without* sudo anyway 
> (it only sets up ~/.nix* stuff AFAIK).

If you add the channel as a user, it will be added to your home
directory and you need to run `sudo nixos-rebuild ...`. If you add it as
root with `sudo nix-channel ...` it's going to be added to your user's
home and you need to run `sudo nixos-rebuild ...`, too. If you add it
with `sudo -H nix-channel...`, it will be added to root's home and you
need to run `sudo -H nixos-rebuild...`.

I'm not sure about security implications, but it feels like one should
do both with `-H`.

-- 
Florian Friesdorf <flo at chaoflow.net>
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