Swapping GNU coreutils for uutils coreutils on Gentoo Linux

Original Article ↗ Hacker News Discussion ↗

Maturity and Compatibility of uutils coreutils

  • Several commenters warn against casually replacing GNU coreutils, citing real bugs in uutils (e.g., mishandled SIGPIPE leading to visible exceptions instead of clean exits).
  • uutils is said to reuse the GNU coreutils test suite, but people note that behavior compatibility in odd edge cases is still lacking.
  • Suggestions to stress-test uutils by building large, crusty projects (Chromium, Gentoo itself) or by systematically comparing results against GNU coreutils.

Gentoo and Filesystem Layout (/bin, /usr/bin, usr-merge)

  • Tangent debate about merged /bin//sbin//usr/bin//usr/sbin.
  • Some dislike the merge, see it as needless churn and “less Unix-like,” and fear breakage (scripts with hardcoded paths, boot issues, initramfs complexity).
  • Others argue the historical separation was mostly about old hardware constraints; symlink-based merging is practical and used by other Unix-like systems (e.g., Solaris).
  • There’s disagreement on whether this actually causes concrete problems versus being largely a philosophical dispute.

Licensing: GPL vs Permissive Reimplementations

  • Strong debate over whether permissively licensed reimplementations (MIT/BSD) of GPL tools are “disrespectful,” “dangerous,” or a healthy alternative.
  • Pro-GPL side: GPL protects the commons, forces corporate contributions, and underpinned Linux’s success; permissive licenses enable proprietary forks and “free riding.”
  • Pro-permissive side: permissive licenses ease commercial use, contribution from employers, and don’t reduce existing freedoms; users can always keep using the free versions.
  • Broader discussion of how corporations exploit different licenses (Linux vs BSD vs macOS, consoles, drivers).

Motivations for uutils and Rust Rewrites

  • Stated motivations include memory safety, learning Rust, avoiding GPL in some environments, and escaping “autotools hell.”
  • Critics see “rewrite X in Y” as low-value compared to solving new problems, and worry more about compatibility than safety for tools like cp/ls.
  • Supporters welcome alternatives, argue multiple implementations improve portability and standards compliance.

Gentoo Packaging and Alternatives

  • Some Gentoo users say the article’s method (overwriting the coreutils package) is a hack; suggest using package.provided, virtuals, or installing under /usr/local plus careful unmerging.
  • Others respond that this was an intentional, quick experiment on a personal system, not a proposal for official Gentoo policy.