zfs-initramfs 2.1.5-1ubuntu6 (amd64 binary) in ubuntu lunar

 OpenZFS is a storage platform that encompasses the functionality of
 traditional filesystems and volume managers. It supports data checksums,
 compression, encryption, snapshots, and more.
 .
 This package adds OpenZFS to the system initramfs with a hook
 for the initramfs-tools infrastructure.