zfs-initramfs 2.0.2-1ubuntu5.2 (s390x binary) in ubuntu hirsute

 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.