Comment 0 for bug 1737592

zfs support exists in Ubuntu kernels for 16.04 and later, but the default initramfs build does not include this module.

Other common filesystems are included.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: initramfs-tools-core 0.125ubuntu12
ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8
Uname: Linux 4.13.0-17-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.8-0ubuntu3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Dec 11 13:05:15 2017
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-07-23 (872 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150722.1)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: initramfs-tools
UpgradeStatus: No upgrade log present (probably fresh install)