Installing UEFI ZFS Root on Ubuntu 22.04

▤ Summary

In my case that special something is the native ZFS encryption, UEFI boot, and custom partitioning I find more suitable for a single disk laptop. General idea of my disk setup is to maximize amount of space available for pool with the minimum of supporting partitions. If you are not planning to have multiple kernels, decreasing boot partition size might be a good idea (512 MB is ok). Unlike what you get with the official guide, here I don’t have ZFS pool for boot partition but a plain old ext4. I just proceed to create the user, assign a few extra groups to it, and make sure its home has correct owner.

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