NixOS / NixOS/nix.dev

'Permission denied' error in module system deep dive tutorial

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#1,067 3 comments 0 reactions 0 assignees View on GitHub

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Description

Problem

When going through the Module system deep dive tutorial, in section 2.6, running

nix-build eval.nix -A config.scripts.output
./result/bin/map

(even with sudo) returns

./result/bin/map: line 8: /nix/store/4cf5pb5pp11dg7kca57qfc2agig2ny7h-map.sh: Permission denied
feh WARNING: /tmp/feh_stdin_tna0vO - Invalid image file
feh: No loadable images specified.
See 'man feh' for detailed usage information

Willing to help?
I'm not sure how to fix this as I'm new to nix. Please let me know if I'm missing something

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with section 2.6 of the Module system deep dive tutorial and reproduce the documented nix-build and ./result/bin/map commands. Investigate why the generated map script cannot execute; done when the tutorial commands run without the permission error and produce the expected image output.

Written by the indexing model from the issue text.

Assessment

Domain
documentation
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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