Is mke2fs GPLv3 compatible?

[AnuthaDev]

Is it GPL-2.0-only or can it be used in GPLv3 source?

[tytso]

Like the Linux kernel, e2fsprogs is GPL-2 only. Of course, GPL-3 code can run a GPL-2 program using fork-exec, which is how mke2fs is generally run. But if you were going to try to incorporate mke2fs source code or libext2fs library in GPLv3 source code, I would invite you to investigate relicensing your source code to GPL-2.

For my (and Linus's) rationale for our license choice, please see the video "Linus Torvalds says GPL v3 violates everything that GPLv2 stood for."

[AnuthaDev]

Ok 🥲