I've had zero problems with kernel updates on Ubuntu 20.04 with ZFS on a natively encrypted root. I followed the instructions in the wiki, lightly modified for my hardware and workload:
`apt-get update && apt-get dist-upgrade -y` works as expected. I plan to switch to a similar config on my Lenovo laptop when I upgrade it to the next Ubuntu LTS release.
Ubuntu's kernel isn't exactly keeping up to date though.
I assume the person you were replying to may be following mainline.
As someone using new kernel version as they are released, I'm not willing to use a filesystem that may break with a kernel update. It also seems openzfs only supports up to kernel 5.6, according the the github release. I'm on 5.9, so its not even an option.
I would need a package that depends on zfs and provides linux-kernel at an appropriate version. Can't have something so critical break because of an upgrade, and I don't want to pin it and forget to upgrade it (also fairly anti-arch).
I’ve ran the latest kernel with latest openzfs git since around kernel 4.x, currently on 5.9.11. I build inkernel as opposed to a module.
There have been a couple cases where I had to wait a week or two for compatibility fixed to get merged into zfs git, but otherwise staying up to date has not been a problem.
