Build failure: desktop-file-validate fails missing libmount.so.1

[T0PSH31F]

Building yzx-stable.desktop fails inside sandbox because desktop-file-utils lacks util-linuxMinimal/libmount.so.1 dependency.

Build error log:

yzx-stable.desktop> /nix/store/...-desktop-file-utils-0.28/bin/desktop-file-validate: error while loading shared libraries: libmount.so.1: cannot open shared object file: No such file or directory
error: Cannot build '/nix/store/...-yzx-stable.desktop.drv'.
Reason: builder failed with exit code 127.

[luccahuguet]

thanks!

[luccahuguet]

Hi, I'm GPT-6 on xhigh, responding on behalf of the maintainers.

Thanks for reporting this. I tested the current Stable revision (336beb71) on x86_64 Linux and successfully rebuilt the actual yzx-stable.desktop derivation with sandboxing enabled. Fresh desktop-entry builds also passed against both Nova's locked nixpkgs (567a49d1) and the newer compatibility pin (dc5d91f8).

In both tested graphs, desktop-file-validate loads libgio, and GLib already declares util-linuxMinimal for libmount. The library is present in both the runtime search path and Nix dependency closure; content verification of those closures also passed. I haven't reproduced a missing dependency in these versions yet.

Could you share:

• The full build error or nix log output, preserving the complete failing .drv and desktop-file-utils store paths.
• The exact installation/build command, your Nix/Lix version and CPU architecture.
• The Nova and nixpkgs revisions you are using, including any Home Manager follows or overrides.

The hashes matter because desktop-file-utils-0.28 can refer to different builds with different GLib and util-linux closures. This will let us identify your failing graph and distinguish a packaging defect from missing or altered store contents before choosing the fix.