[Nix-dev] Checksum error then everything builds from source

[Shea Levy]

On 12/20/2012 06:16 PM, Richard Wallace wrote:
> Cool.  Although I admit I'm still a bit lost on where the nix.conf 
> file is supposed to go.  I tried every location I could think of for 
> the `prefix` in `prefix/nix/nix.conf` and none of those worked.

On NixOS, we set NIX_CONF_DIR=/etc/nix, and the configuration file goes 
in /etc/nix/nix.conf. The nix in the binary tarball is built with 
sysconfdir in the nix store (which you can't modify), so NIX_CONF_DIR is 
the only way to override it.

>  I also had to use a slightly different path than you suggested in the 
> PR, `/nix/var/nix/profiles/per-user/rwallace/channels/binary-caches/*`.

Ah, thanks, fixed the pull request.

>  So for now I'm passing the option manually. :(
>
> Any suggestions?
> Thanks again,
> Rich
>
>
> On Thu, Dec 20, 2012 at 3:30 PM, Shea Levy <shea at shealevy.com 
> <mailto:shea at shealevy.com>> wrote:
>
>     On 12/20/2012 05:28 PM, Richard Wallace wrote:
>>     Aha.  That should probably be mentioned in the manual under the
>>     "Single-user mode" section[1] of the manual.
>
>     Already a pull request: https://github.com/NixOS/nix/pull/72 :)
>
>
>>      It might also be nice if that could be autodetected by the
>>     'nix-finish-install' script and setup properly.  I was also
>>     thrown off the trail because this wasn't the case with nix 1.1.
>>
>>     [1] http://hydra.nixos.org/build/3540507/download/1/manual/#idp15104
>>
>>
>>     On Thu, Dec 20, 2012 at 2:51 PM, Eelco Dolstra
>>     <eelco.dolstra at logicblox.com
>>     <mailto:eelco.dolstra at logicblox.com>> wrote:
>>
>>         Hi,
>>
>>         On 20/12/12 22:46, Richard Wallace wrote:
>>
>>         > Oh, that was the problem.  I checked after doing
>>         `nix-channel --update` and the
>>         > file `~/.nix-defexpr/channels/binary-caches/nixpkgs` contained
>>         > `http://nixos.org/binary-cache/`
>>         <http://nixos.org/binary-cache/%60>. But it looks like it was
>>         being ignored, for
>>         > whatever reason.
>>
>>         This is because by default, Nix only looks in
>>         /nix/var/nix/profiles/per-user/root/channels/binary-caches/*
>>         for binary cache
>>         URLs.  So it only checks the channels added by root.  There
>>         is an option
>>         "binary-caches-files" to overide this.
>>
>>         --
>>         Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/
>>         <http://nixos.org/%7Eeelco/>
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>>
>>
>>
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