nix config show system prints x86-linux for the i686 version #13532
Description
Describe the bug
The default value for the system config is x86-linux which breaks nixpkgs.
Steps To Reproduce
- Build nix with
nix build --system i686-linux - Do not have
systemin any of your nix configs! - Run
./result/bin/nix config show systemor./result/bin/nix eval --impure --expr 'builtins.currentSystem' - See
x86-linux
Alternatively try to use that nix to build anything from nixpkgs, see it fail with an error that x86 was not a valid CPU.
Expected behavior
See i686-linux when doing the above steps
Builds from nixpkgs succeed.
Metadata
$ nix --version
nix (Nix) 2.31.0pre20250719_c70e143
Additional context
did a bisection, the problem exists since b41cc1a.
Bisection log
git bisect start
# status: waiting for both good and bad commits
# bad: [5c5a737885e9e015b66fb03a9252f8e771b2d28d] Mark stable release
git bisect bad 5c5a737885e9e015b66fb03a9252f8e771b2d28d
# status: waiting for good commit(s), bad commit known
# good: [206e32e2d7c72c940a4348648f5de46122c495c9] Mark release
git bisect good 206e32e2d7c72c940a4348648f5de46122c495c9
# good: [b24757f08ab4ae98a9b6e8756fe21fa7e2d55248] Merge pull request #11231 from DeterminateSystems/release-notes
git bisect good b24757f08ab4ae98a9b6e8756fe21fa7e2d55248
# bad: [ec2b01585f52ff9746162be34486d2da57c5287a] Merge pull request #11526 from quatquatt/update-multiple-inputs
git bisect bad ec2b01585f52ff9746162be34486d2da57c5287a
# bad: [85f1aa6b3df5c5fcc924a74e2a9cc8acea9ba0e1] Merge pull request #11356 from ehmry/nix_store_copy_closure
git bisect bad 85f1aa6b3df5c5fcc924a74e2a9cc8acea9ba0e1
# bad: [c45859864742dea6cacf84b83b577c3be0744bf1] Merge pull request #11297 from shivaraj-bh/flake-apps-description
git bisect bad c45859864742dea6cacf84b83b577c3be0744bf1
# good: [95fe9f5ba18bb5fe025a06cbba0e18740ad101dd] Fix Meson installation of the Nix CLI
git bisect good 95fe9f5ba18bb5fe025a06cbba0e18740ad101dd
# bad: [06b18cff2021d7cca21ad013fea6da0c43109032] doc: Edit language/operators
git bisect bad 06b18cff2021d7cca21ad013fea6da0c43109032
# good: [66a6eac379cef1da260173cf9decd2e8c184556b] Merge pull request #11280 from NixOS/contributing-attribution
git bisect good 66a6eac379cef1da260173cf9decd2e8c184556b
# good: [b8a09bd167aa488d162de26a49c4f49e6f16d65e] Merge pull request #11073 from obsidiansystems/meson-functional-tests
git bisect good b8a09bd167aa488d162de26a49c4f49e6f16d65e
# bad: [b41cc1a7555e59d5753bf4f8cbbfa9137107d2fe] Make wrapper derivation
git bisect bad b41cc1a7555e59d5753bf4f8cbbfa9137107d2fe
# good: [6f3045c2a225dca7b1ed8a9c9dc27ab50f575900] Remove unit tests from old build system
git bisect good 6f3045c2a225dca7b1ed8a9c9dc27ab50f575900
# first bad commit: [b41cc1a7555e59d5753bf4f8cbbfa9137107d2fe] Make wrapper derivation
bisection script
#/usr/bin/env bash
nix build --system i686-linux . || exit 125
if [ "$(./result/bin/nix eval --raw --impure --expr 'builtins.currentSystem')" = "i686-linux" ]; then
exit 0
else
exit 1
fiChecklist
- checked latest Nix manual (source)
- checked open bug issues and pull requests for possible duplicates
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