[ryao]

There are a few people who think that. There are plenty of others who do not. Those in charge of reviewing licensing in Linux distributions that have adopted it are generally of the opinion that it is okay, especially those in charge of Sabayon and Ubuntu. Gentoo came to similar conclusions long before them (>4 years before Ubuntu) and ships it in binary form on the LiveDVD. At this point, there are at least a few dozen distributions that have adopted ZFS in some form or another.

Here is a legal opinion on the matter:

https://www.softwarefreedom.org/resources/2016/linux-kernel-...

[xenophonf]

I don't see how anyone could read that and come away thinking that ZFS-on-Linux isn't kosher. Given as simple as it is to compile zfs.ko in the Ubuntu live environment, I'd bet money that's Canonical's backup plan should a literal interpretation of the kernel's license become a legal reality.

And here's to hoping that ZFS becomes so widespread that Oracle themselves end up redistributing it in their version of Linux, like they did with DTrace.