GNU bug report logs - #42173
Nix on Guix System: can't update channels

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Oleg Pykhalov <go.wigust <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#42173: closed (Nix on Guix System: can't update channels)
Date: Wed, 22 Jul 2020 19:39:02 +0000

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Your message dated Wed, 22 Jul 2020 22:38:14 +0300
with message-id <87ft9j732x.fsf <at> gmail.com>
and subject line Re: [PATCH 2/2] services: nix: Fix sandbox.
has caused the debbugs.gnu.org bug report #42173,
regarding Nix on Guix System: can't update channels
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Alexandru-Sergiu Marton <brown121407 <at> posteo.ro>
To: bug-guix <at> gnu.org
Subject: Nix on Guix System: can't update channels
Date: Fri, 03 Jul 2020 12:56:33 +0300

Hi,

I tried to set up the Nix package manager on my Guix System 
following the instructions at 
http://guix.gnu.org/manual/en/guix.html#index-Nix . 
Unfortunately, after reconfiguring the system and adding a channel 
with `nix-channel --add 
https://nixos.org/channels/nixpkgs-unstable`, when I tried to 
update the channels (`nix-channel --update`), this is what I got:

--8<---------------cut here---------------start------------->8--- 
[brown <at> 121408 ~]$ nix-channel --update unpacking channels... 
while setting up the build environment: executing 
'/gnu/store/pwcp239kjf7lnj5i4lkdzcfcxwcfyk72-bash-minimal-5.0.16/bin/bash': 
No such file or directory builder for 
'/nix/store/fqvvrsyznxfzckxbiz6krlykdb6w105n-nixpkgs-20.09pre232864.55668eb671b.drv' 
failed with exit code 1 error: build of 
'/nix/store/fqvvrsyznxfzckxbiz6krlykdb6w105n-nixpkgs-20.09pre232864.55668eb671b.drv' 
failed error: program 
'/gnu/store/lsixql26nig4v3icn124ja3ivjpgvn99-nix-2.3.6/bin/nix-env' 
failed with exit code 100 --8<---------------cut 
here---------------end--------------->8--- 

Any tips on how to fix this?

Cheers,
Sergiu

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From: Oleg Pykhalov <go.wigust <at> gmail.com>
To: 42173-done <at> debbugs.gnu.org
Subject: Re: [PATCH 2/2] services: nix: Fix sandbox.
Date: Wed, 22 Jul 2020 22:38:14 +0300

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Hi,

Ludovic Courtès <ludo <at> gnu.org> writes:

[…]

>> +           (with-output-to-file "/etc/nix/nix.conf"
>> +             (lambda _
>> +               (format #t "sandbox = ~a~%" (if #$sandbox "true" "false"))
>> +               (format #t "build-sandbox-paths = ~{~a ~}~%"
>> +                       (append (append-map (cut call-with-input-file <> read)
>> +                                           '#$(map references-file
>> +                                                   (list package)))
>> +                               '#$build-sandbox-paths))
>> +               (for-each (cut display <>) '#$extra-config))))))))
>
> Actually I thought this would have to be addressed in the ‘nix’ package
> itself because this is where those store file names are captured.  But
> maybe it’s OK to do it in the service.  WDYT?

I think it's good enough for now to fix the issue.  We could delete
prepending ‘build-sandbox-paths’ with ‘nix’ closure in future.

>> +(define %nix-os
>
> Pretty fun.  :-)

Yea, :-).

Pushed to master as 4656180d5de1fef2846bea9af27ae509f32376ba

Oleg.

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