On 06/13/2014 06:06 PM, Kirill Elagin wrote:
> If I got it right, you just create exactly the same environment on your own
> box with nix store wherever you like (its location is controlled by
> NIX_STORE_DIR) and build everything from source, thus you get binaries with
> custom path to the store hard-wired. Then you copy those to your target
> machine.
> 
> 
> --
> Кирилл Елагин
> 

I don't seem to be able to reproduce this. On my target box I have:

-bash-4.1$ nix-channel --list
nixpkgs http://nixos.org/channels/nixpkgs-unstable
-bash-4.1$ NIX_STORE_DIR=/u/c/mk440/localsoftware/nix/store
nix-instantiate --readonly-mode '<nixpkgs>' -A hello
warning: you did not specify `--add-root'; the result might be removed
by the garbage collector
/u/c/mk440/localsoftware/nix/store/bxfj2spplwca162s2yklrxngjj4cb4r7-hello-2.9.drv
-bash-4.1$ uname -a
Linux lcpu1.bath.ac.uk 2.6.32-431.17.1.el6.x86_64 #1 SMP Wed May 7
23:32:49 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

And on the box I wish to compile on:

[shana@lenalee:~]$ nix-channel --list
nixpkgs-local http://nixos.org/channels/nixpkgs-unstable
nixos http://nixos.org/channels/nixos-unstable

[shana@lenalee:~]$
NIX_PATH="nixpkgs-local=/home/shana/.nix-defexpr/channels/nixpkgs-local"
NIX_STORE_DIR=/u/c/mk440/localsoftware/nix/store nix-instantiate
--readonly-mode '<nixpkgs-local>' -A hello
warning: you did not specify `--add-root'; the result might be removed
by the garbage collector
/u/c/mk440/localsoftware/nix/store/1h8sxxyp8jn832l0fn3d1wf43jcbcf4b-hello-2.9.drv
[shana@lenalee:~]$ uname -a
Linux lenalee 3.12.21 #1-NixOS SMP Thu Jan 1 00:00:01 UTC 1970 x86_64
GNU/Linux

So I end up with two different hashes. What could I be overlooking? If
it's about software outside of the nix store then I don't think it's
feasible to get that to match up.

> On Fri, Jun 13, 2014 at 7:56 PM, Mateusz Kowalczyk <[email protected]>
> wrote:
> 
>> On 06/13/2014 02:33 PM, Vladimír Čunát wrote:
>>> On 06/13/2014 02:19 PM, Andreas Herrmann wrote:
>>>> Given a case where you can't get the admin to give you `/nix`, and where
>>>> you have space/compute constraints on the target, would it be possible
>>>> to create the full nix install on your own local machine in the correct
>>>> paths, and then just copy it to the target? Maybe a little like your
>>>> own, small, on-demand hydra...
>>>
>>> It should be enough to just define NIX_STORE_DIR when using the nix
>> tools.
>>>
>>> However, there might not be an easy way ready for installing the nix
>>> tools itself without root privileges. Some description of the whole
>>> process is e.g.
>>>
>> https://nixos.org/wiki/How_to_install_nix_in_home_(on_another_distribution)
>>>
>>>
>>> Vlada
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> nix-dev mailing list
>>> [email protected]
>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>>
>>
>> Can you elaborate on how using NIX_STORE_DIR would work? I ran into a
>> space constraint problem (apparently 1.5GB to install GCC is not enough)
>> so next thing I want to try is to compile it on my home computer and
>> then send it over to my restricted target box. How would the whole
>> process look like?
>>
>> Do I need to create the store directory at same path it is at on the
>> target box? What commands can I use to transfer the built GCC between
>> stores?
>>
>>
>> --
>> Mateusz K.
>> _______________________________________________
>> nix-dev mailing list
>> [email protected]
>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>
> 


-- 
Mateusz K.
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