e2fsprogs (GPL-2.0) required as macOS host dependency — request for configurable path and permissive alternatives

Problem Statement

e2fsprogs (GPL-2.0) required as macOS host dependency — request for configurable path and permissive alternatives

Summary

The OpenShell sandbox rootfs (sandbox-bootstrap-rootfs-ext4-v3-openshell-*) bundles e2fsprogs binaries and libraries, some of which are licensed under GPL-2.0. We need clarification on:

1. Why these GPL binaries are included in the rootfs
2. What compliance obligations apply when distributing the rootfs
3. Whether these binaries can be removed or replaced with permissively-licensed alternatives

Bundled Files

Analysis of the rootfs shows 13 filesystem entries from e2fsprogs:

File	Type	License
bin/mke2fs	binary	GPL-2.0
bin/debugfs	binary	GPL-2.0
bin/mkfs.ext4	symlink → mke2fs	—
sbin/mke2fs	binary (bit-identical to bin/mke2fs)	GPL-2.0
sbin/debugfs	binary (bit-identical to bin/debugfs)	GPL-2.0
sbin/mkfs.ext4	symlink → mke2fs	—
lib/libext2fs.2.1.dylib	dylib	LGPL-2.0
lib/libe2p.2.1.dylib	dylib	LGPL-2.0
lib/libblkid.2.0.dylib	dylib	LGPL-2.1
lib/libcom_err.1.1.dylib	dylib	MIT-derived
lib/libss.1.0.dylib	dylib	MIT-derived
lib/libuuid.1.1.dylib	dylib	BSD-3-Clause
lib/libintl.8.dylib	dylib (gettext)	LGPL-2.1

Environment

• OpenShell version: 0.0.74, 0.0.83
• Rootfs: sandbox-bootstrap-rootfs-ext4-v3-openshell-0.0.74
• Platform: macOS (Apple Silicon)

Impact

This is blocking enterprise distribution of products built on OpenShell until compliance approach is clarified.

References

• e2fsprogs upstream: https://e2fsprogs.sourceforge.net/
• e2fsprogs source: https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
• GPL-2.0 license: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html

Proposed Design

Questions

1. Purpose: What functionality in OpenShell requires mke2fs and debugfs? Are they used at runtime or only during rootfs build?

2. Removal: Can these binaries be excluded from the distributed rootfs if they're only needed at build time?

3. Compliance approach: If these must be distributed, what is NVIDIA's recommended compliance approach?

   • Include license text in rootfs?
   • Provide source code URL in documentation?
   • Other?

4. Alternatives: Are there plans to replace GPL-2.0 tools with permissively-licensed alternatives (e.g., for ext4 operations)?

Alternatives Considered

GPL-2.0 Compliance Requirements

When distributing GPL-2.0 binaries, the following obligations apply:

1. Include GPL-2.0 license text with the distribution
2. Provide access to source code — either bundled or via written offer valid for 3 years
3. No additional restrictions beyond the GPL

Agent Investigation

No response

Checklist

• I've reviewed existing issues and the architecture docs
• This is a design proposal, not a "please build this" request

Start with the architecture docs and the bundled sandbox-bootstrap-rootfs-ext4-v3-openshell-* contents listed in the issue. Determine whether bin/mke2fs, debugfs, and their libraries are needed at runtime or only during rootfs construction, then document the required compliance approach and whether configurable paths or replacements are feasible.