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Comment by kbumsik | Hacker News Reader

I didn't know that, but this is much bigger news to me. I have been always told that the biggest reason to use FreeBSD is ZFS a long time ago. Things has been changed that much since then.

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On FreeBSD 11.x and 12.x (and older ones) the currently by default remains the old (not ZFS on Linux) ZFS implementation that has lots of FreeBSD additions like TRIM that was lacked on Linux.

FreeBSD forked ZFS on Linux GitHub repo and now its called ZFS on FreeBSD. You can try it already by installing these two ports:

- sysutils/zol

- sysutils/openzfs-kmod

Regards, vermaden

>FreeBSD forked ZFS on Linux GitHub repo and now its called ZFS on FreeBSD. You can try it already by installing these two ports:

Correct me if I am wrong, So we now have

Oracle ZFS, FreeBSD ZFS, ZFS on Linux and ZFS on FreeBSD?

Damn, I could've used this a few weeks ago. I moved my NAS from bare Ubuntu + ZoL to FreeNAS, and got stuck on a read-only pool because of unsupported features such as userobj_accounting (1). I had to zfs send/receive to external drives and back again to work around this, which was annoying, to say the least.

[1] http://open-zfs.org/wiki/Feature_Flags

This is kind of standard faire though. I did a `zpool upgrade` on my root pool once and broke GRUB's ability to boot my system, since there were features enabled that it didn't understand (wouldn't have hurt anything to ignore, but GRUB wants to play it safe obviously).

I think FreeBSD still offers a more cohesive (and native) out of the box ZFS experience. For example, you do not need to worry about kernel upgrades/DKMS going sideways and breaking ZFS.

I didn't have any problems on NixOS thus far. Of course, it doesn't use or need DKMS. Also, doing a root on ZFS install was as simple as installing root on brtfs.

Mind sharing what guide(s) you used? ZoL has always seemed like a moving target for me. The nice thing about Nix is it helps to manage problems like those.

The wiki page:

https://nixos.wiki/wiki/NixOS_on_ZFS

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