Add native Debian Packaging for Linux

Currently, the Debian packages are generated from ALIEN that converts
RPMs to Debian packages. This commit adds native Debian packaging for
Debian based systems.

This packaging is a fork of Debian zfs-linux 2.1.6-2 release.
(source: https://salsa.debian.org/zfsonlinux-team/zfs)

Some updates have been made to keep the footprint minimal that
include removing the tests, translation files, patches directory etc.
All credits go to Debian ZFS on Linux Packaging Team.

For copyright information, please refer to contrib/debian/copyright.

scripts/debian-packaging.sh can be used to invoke the build.

Reviewed-by: Mo Zhou <cdluminate@gmail.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Umer Saleem <usaleem@ixsystems.com>
Closes #13451 

55 files changed, 1198 insertions, 0 deletions

diff --git a/contrib/debian/changelog b/contrib/debian/changelog
new file mode 100644
index 000000000000..6273d603834a
--- /dev/null
+++ b/contrib/debian/changelog
@@ -0,0 +1,7 @@
+openzfs-linux (2.1.99-1) unstable; urgency=low
+
+  * Integrate minimally modified Debian packaging from ZFS on Linux
+    (source: https://salsa.debian.org/zfsonlinux-team/zfs)
+  * This packaging is a fork of Debian zfs-linux 2.1.6-2 release.
+
+ -- Umer Saleem <usaleem@ixsystems.com>  Fri, 11 Oct 2022 15:00:00 -0400
diff --git a/contrib/debian/clean b/contrib/debian/clean
new file mode 100644
index 000000000000..3100d693aeba
--- /dev/null
+++ b/contrib/debian/clean
@@ -0,0 +1,11 @@
+bin/
+cmd/zed/zed.d/history_event-zfs-list-cacher.sh
+contrib/pyzfs/build/
+contrib/pyzfs/libzfs_core/__pycache__/
+contrib/pyzfs/libzfs_core/bindings/__pycache__/
+contrib/pyzfs/pyzfs.egg-info/
+debian/openzfs-libnvpair3.install
+debian/openzfs-libuutil3.install
+debian/openzfs-libzfs4.install
+debian/openzfs-libzfs-dev.install
+debian/openzfs-libzpool5.install
diff --git a/contrib/debian/control b/contrib/debian/control
new file mode 100644
index 000000000000..a0db4985ed1a
--- /dev/null
+++ b/contrib/debian/control
@@ -0,0 +1,328 @@
+Source: openzfs-linux
+Section: contrib/kernel
+Priority: optional
+Maintainer: ZFS on Linux specific mailing list <zfs-discuss@list.zfsonlinux.org>
+Build-Depends: abigail-tools,
+               debhelper-compat (= 12),
+               dh-python,
+               dkms (>> 2.1.1.2-5),
+               libaio-dev,
+               libblkid-dev,
+               libcurl4-openssl-dev,
+               libelf-dev,
+               libpam0g-dev,
+               libssl-dev | libssl1.0-dev,
+               libtool,
+               libudev-dev,
+               lsb-release,
+               po-debconf,
+               python3-all-dev,
+               python3-cffi,
+               python3-setuptools,
+               python3-sphinx,
+               uuid-dev,
+               zlib1g-dev
+Standards-Version: 4.5.1
+Homepage: https://openzfs.org/
+Vcs-Git: https://github.com/openzfs/zfs.git
+Vcs-Browser: https://github.com/openzfs/zfs
+Rules-Requires-Root: no
+XS-Autobuild: yes
+
+Package: openzfs-libnvpair3
+Section: contrib/libs
+Architecture: linux-any
+Depends: ${misc:Depends}, ${shlibs:Depends}
+Breaks: libnvpair1, libnvpair3
+Replaces: libnvpair1, libnvpair3, libnvpair3linux
+Conflicts: libnvpair3linux
+Description: Solaris name-value library for Linux
+ This library provides routines for packing and unpacking nv pairs for
+ transporting data across process boundaries, transporting between
+ kernel and userland, and possibly saving onto disk files.
+
+Package: openzfs-libpam-zfs
+Section: contrib/admin
+Architecture: linux-any
+Depends: libpam-runtime, ${misc:Depends}, ${shlibs:Depends}
+Replaces: libpam-zfs
+Conflicts: libpam-zfs
+Description: PAM module for managing encryption keys for ZFS
+ 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 provides a Pluggable Authentication Module (PAM) that automatically
+ unlocks encrypted ZFS datasets upon login.
+
+Package: openzfs-libuutil3
+Section: contrib/libs
+Architecture: linux-any
+Depends: ${misc:Depends}, ${shlibs:Depends}
+Breaks: libuutil1, libuutil3
+Replaces: libuutil1, libuutil3, libuutil3linux
+Conflicts: libuutil3linux
+Description: Solaris userland utility library for Linux
+ This library provides a variety of glue functions for ZFS on Linux:
+  * libspl: The Solaris Porting Layer userland library, which provides APIs
+    that make it possible to run Solaris user code in a Linux environment
+    with relatively minimal modification.
+  * libavl: The Adelson-Velskii Landis balanced binary tree manipulation
+    library.
+  * libefi: The Extensible Firmware Interface library for GUID disk
+    partitioning.
+  * libshare: NFS, SMB, and iSCSI service integration for ZFS.
+
+Package: openzfs-libzfs-dev
+Section: contrib/libdevel
+Architecture: linux-any
+Depends: libssl-dev | libssl1.0-dev,
+         openzfs-libnvpair3 (= ${binary:Version}),
+         openzfs-libuutil3 (= ${binary:Version}),
+         openzfs-libzfs4 (= ${binary:Version}),
+         openzfs-libzfsbootenv1 (= ${binary:Version}),
+         openzfs-libzpool5 (= ${binary:Version}),
+         ${misc:Depends}
+Replaces: libzfslinux-dev
+Conflicts: libzfslinux-dev
+Provides: libnvpair-dev, libuutil-dev
+Description: OpenZFS filesystem development files for Linux
+ Header files and static libraries for compiling software against
+ libraries of OpenZFS filesystem.
+ .
+ This package includes the development files of libnvpair3, libuutil3,
+ libzpool5 and libzfs4.
+
+Package: openzfs-libzfs4
+Section: contrib/libs
+Architecture: linux-any
+Depends: ${misc:Depends}, ${shlibs:Depends}
+# The libcurl4 is loaded through dlopen("libcurl.so.4").
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988521
+Recommends: libcurl4
+Breaks: libzfs2, libzfs4
+Replaces: libzfs2, libzfs4, libzfs4linux
+Conflicts: libzfs4linux
+Description: OpenZFS filesystem library for Linux - general support
+ OpenZFS is a storage platform that encompasses the functionality of
+ traditional filesystems and volume managers. It supports data checksums,
+ compression, encryption, snapshots, and more.
+ .
+ The OpenZFS library provides support for managing OpenZFS filesystems.
+
+Package: openzfs-libzfsbootenv1
+Section: contrib/libs
+Architecture: linux-any
+Depends: ${misc:Depends}, ${shlibs:Depends}
+Breaks: libzfs2, libzfs4
+Replaces: libzfs2, libzfs4, libzfsbootenv1linux
+Conflicts: libzfsbootenv1linux
+Description: OpenZFS filesystem library for Linux - label info support
+ OpenZFS is a storage platform that encompasses the functionality of
+ traditional filesystems and volume managers. It supports data checksums,
+ compression, encryption, snapshots, and more.
+ .
+ The zfsbootenv library provides support for modifying ZFS label information.
+
+Package: openzfs-libzpool5
+Section: contrib/libs
+Architecture: linux-any
+Depends: ${misc:Depends}, ${shlibs:Depends}
+Breaks: libzpool2, libzpool5
+Replaces: libzpool2, libzpool5, libzpool5linux
+Conflicts: libzpool5linux
+Description: OpenZFS pool library for Linux
+ 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 zpool library provides support for managing zpools.
+
+Package: openzfs-python3-pyzfs
+Section: contrib/python
+Architecture: linux-any
+Depends: python3-cffi,
+         openzfs-zfsutils (= ${binary:Version}),
+         ${misc:Depends},
+         ${python3:Depends}
+Replaces: python3-pyzfs
+Conflicts: python3-pyzfs
+Description: wrapper for libzfs_core C library
+ libzfs_core is intended to be a stable interface for programmatic
+ administration of ZFS. This wrapper provides one-to-one wrappers for
+ libzfs_core API functions, but the signatures and types are more natural to
+ Python.
+ .
+ nvlists are wrapped as dictionaries or lists depending on their usage.
+ Some parameters have default values depending on typical use for
+ increased convenience. Enumerations and bit flags become strings and lists
+ of strings in Python. Errors are reported as exceptions rather than integer
+ errno-style error codes.  The wrapper takes care to provide one-to-many
+ mapping of the error codes to the exceptions by interpreting a context
+ in which the error code is produced.
+
+Package: openzfs-pyzfs-doc
+Section: contrib/doc
+Architecture: all
+Depends: ${misc:Depends}, ${sphinxdoc:Depends}
+Recommends: openzfs-python3-pyzfs
+Replaces: pyzfs-doc
+Conflicts: pyzfs-doc
+Description: wrapper for libzfs_core C library (documentation)
+ libzfs_core is intended to be a stable interface for programmatic
+ administration of ZFS. This wrapper provides one-to-one wrappers for
+ libzfs_core API functions, but the signatures and types are more natural to
+ Python.
+ .
+ nvlists are wrapped as dictionaries or lists depending on their usage.
+ Some parameters have default values depending on typical use for
+ increased convenience. Enumerations and bit flags become strings and lists
+ of strings in Python. Errors are reported as exceptions rather than integer
+ errno-style error codes.  The wrapper takes care to provide one-to-many
+ mapping of the error codes to the exceptions by interpreting a context
+ in which the error code is produced.
+ .
+ This package contains the documentation.
+
+Package: openzfs-zfs-dkms
+Architecture: all
+Depends: dkms (>> 2.1.1.2-5),
+         file,
+         libc6-dev | libc-dev,
+         lsb-release,
+         python3-distutils | libpython3-stdlib (<< 3.6.4),
+         ${misc:Depends},
+         ${perl:Depends}
+Recommends: openzfs-zfs-zed, openzfs-zfsutils (>= ${source:Version}), ${linux:Recommends}
+# suggests debhelper because e.g. `dkms mkdeb -m zfs -v 0.8.2` needs dh_testdir (#909183)
+Suggests: debhelper
+Breaks: spl-dkms (<< 0.8.0~rc1)
+Replaces: spl-dkms, zfs-dkms
+Conflicts: zfs-dkms
+Provides: openzfs-zfs-modules
+Description: OpenZFS filesystem kernel modules for Linux
+ 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 DKMS package includes the SPA, DMU, ZVOL, and ZPL components of
+ OpenZFS.
+
+Package: openzfs-zfs-initramfs
+Architecture: all
+Depends: busybox-initramfs | busybox-static | busybox,
+         initramfs-tools,
+         openzfs-zfs-modules | openzfs-zfs-dkms,
+         openzfs-zfsutils (>= ${source:Version}),
+         ${misc:Depends}
+Breaks: zfsutils-linux (<= 0.7.11-2)
+Replaces: zfsutils-linux (<= 0.7.11-2), zfs-initramfs
+Conflicts: zfs-initramfs
+Description: OpenZFS root filesystem capabilities for Linux - initramfs
+ 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.
+
+Package: openzfs-zfs-dracut
+Architecture: all
+Depends: dracut,
+         openzfs-zfs-modules | openzfs-zfs-dkms,
+         openzfs-zfsutils (>= ${source:Version}),
+         ${misc:Depends}
+Conflicts: zfs-dracut
+Replaces: zfs-dracut
+Description: OpenZFS root filesystem capabilities for Linux - dracut
+ 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 dracut infrastructure.
+
+Package: openzfs-zfsutils
+Section: contrib/admin
+Architecture: linux-any
+Pre-Depends: ${misc:Pre-Depends}
+Depends: openzfs-libnvpair3 (= ${binary:Version}),
+         openzfs-libuutil3 (= ${binary:Version}),
+         openzfs-libzfs4 (= ${binary:Version}),
+         openzfs-libzpool5 (= ${binary:Version}),
+         python3,
+         ${misc:Depends},
+         ${shlibs:Depends}
+Recommends: lsb-base, openzfs-zfs-modules | openzfs-zfs-dkms, openzfs-zfs-zed
+Breaks: openrc,
+        spl (<< 0.7.9-2),
+        spl-dkms (<< 0.8.0~rc1),
+        openzfs-zfs-dkms (<< ${source:Version}),
+        openzfs-zfs-dkms (>> ${source:Version}...)
+Replaces: spl (<< 0.7.9-2), spl-dkms, zfsutils-linux
+Conflicts: zfs, zfs-fuse, zfsutils-linux
+Suggests: nfs-kernel-server,
+          samba-common-bin (>= 3.0.23),
+          openzfs-zfs-initramfs | openzfs-zfs-dracut
+Provides: openzfsutils
+Description: command-line tools to manage OpenZFS filesystems
+ 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 provides the zfs and zpool commands to create and administer
+ OpenZFS filesystems.
+
+Package: openzfs-zfs-zed
+Section: contrib/admin
+Architecture: linux-any
+Pre-Depends: ${misc:Pre-Depends}
+Depends: openzfs-zfs-modules | openzfs-zfs-dkms,
+         openzfs-zfsutils (>= ${binary:Version}),
+         ${misc:Depends},
+         ${shlibs:Depends}
+Conflicts: zfs, zfs-zed
+Replaces: zfs-zed
+Description: OpenZFS Event Daemon
+ OpenZFS is a storage platform that encompasses the functionality of
+ traditional filesystems and volume managers. It supports data checksums,
+ compression, encryption, snapshots, and more.
+ .
+ ZED (ZFS Event Daemon) monitors events generated by the ZFS kernel
+ module. When a zevent (ZFS Event) is posted, ZED will run any ZEDLETs
+ (ZFS Event Daemon Linkage for Executable Tasks) that have been enabled
+ for the corresponding zevent class.
+ .
+ This package provides the OpenZFS Event Daemon (zed).
+
+Package: openzfs-zfs-test
+Section: contrib/admin
+Architecture: linux-any
+Depends: acl,
+         attr,
+         bc,
+         fio,
+         ksh,
+         lsscsi,
+         mdadm,
+         parted,
+         python3,
+         openzfs-python3-pyzfs,
+         sudo,
+         sysstat,
+         openzfs-zfs-modules | openzfs-zfs-dkms,
+         openzfs-zfsutils (>=${binary:Version}),
+         ${misc:Depends},
+         ${shlibs:Depends}
+Recommends: nfs-kernel-server
+Breaks: zfsutils-linux (<= 0.7.9-2)
+Replaces: zfsutils-linux (<= 0.7.9-2), zfs-test
+Conflicts: zutils, zfs-test
+Description: OpenZFS test infrastructure and support scripts
+ 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 provides the OpenZFS test infrastructure for destructively
+ testing and validating a system using OpenZFS. It is entirely optional
+ and should only be installed and used in test environments.
diff --git a/contrib/debian/control.modules.in b/contrib/debian/control.modules.in
new file mode 100644
index 000000000000..70a165266d16
--- /dev/null
+++ b/contrib/debian/control.modules.in
@@ -0,0 +1,33 @@
+Source: openzfs-linux
+Section: contrib/kernel
+Priority: optional
+Maintainer: ZFS on Linux specific mailing list <zfs-discuss@list.zfsonlinux.org>
+Build-Depends: debhelper-compat (= 10),
+               dkms (>> 2.1.1.2-5),
+               libtool,
+               linux-headers-_KVERS_
+Standards-Version: 4.3.0
+Homepage: http://www.openzfs.org/
+Vcs-Git: https://github.com/openzfs/zfs.git
+Vcs-Browser: https://github.com/openzfs/zfs
+
+Package: openzfs-zfs-modules-_KVERS_
+Architecture: _ARCH_
+Provides: openzfs-zfs-modules
+Depends: linux-image-_KVERS_
+Recommends: openzfsutils
+Replaces: zfs-modules-_KVERS_
+Conflicts: zfs-modules-_KVERS_
+Description: OpenZFS filesystem kernel modules for Linux (kernel _KVERS_)
+ An advanced integrated volume manager and filesystem that is designed for
+ performance and data integrity. Snapshots, clones, checksums, deduplication,
+ compression, and RAID redundancy are built-in features.
+ .
+ This package contains the compiled kernel module for _KVERS_
+ .
+ Includes the SPA, DMU, ZVOL, and ZPL components of OpenZFS.
+ .
+ If you have compiled your own kernel, you will most likely need to build
+ your own zfs-modules. The zfs-source package has been
+ provided for use with the Debian kernel-package utility to produce a
+ version of zfs-module for your kernel.
diff --git a/contrib/debian/copyright b/contrib/debian/copyright
new file mode 100644
index 000000000000..65c7d209d8eb
--- /dev/null
+++ b/contrib/debian/copyright
@@ -0,0 +1,19 @@
+This Debian packaging is a derived work of Debian's zfs-linux package [1].
+The original copy of the Debian-styled copyright file can be found at [2].
+The detailed contributor information can be found in [2][3].
+
+Files: contrib/debian/*
+Copyright:
+ 2013-2016, Aron Xu <aron@debian.org>
+ 2016, Petter Reinholdtsen <pere@hungry.com>
+ 2013, Carlos Alberto Lopez Perez <clopez@igalia.com>
+ 2013, Turbo Fredriksson <turbo@bayour.com>
+ 2012-2013, Richard Laager <rlaager@wiktel.com>
+ 2011-2013, Darik Horn <dajhorn@vanadac.com>
+ 2018-2019, Mo Zhou <cdluminate@gmail.com>
+ 2018-2020, Mo Zhou <lumin@debian.org>
+License: GPL-2+
+
+[1] https://tracker.debian.org/pkg/zfs-linux
+[2] https://salsa.debian.org/zfsonlinux-team/zfs/-/blob/master/debian/copyright
+[3] https://salsa.debian.org/zfsonlinux-team/zfs/-/blob/master/debian/changelog
diff --git a/contrib/debian/not-installed b/contrib/debian/not-installed
new file mode 100644
index 000000000000..ad14776f3b7e
--- /dev/null
+++ b/contrib/debian/not-installed
@@ -0,0 +1,13 @@
+usr/bin/arc_summary.py
+usr/share/zfs/enum-extract.pl
+usr/share/zfs/zfs-helpers.sh
+etc/default/zfs
+etc/init.d
+etc/sudoers.d
+etc/zfs/vdev_id.conf.alias.example
+etc/zfs/vdev_id.conf.multipath.example
+etc/zfs/vdev_id.conf.sas_direct.example
+etc/zfs/vdev_id.conf.sas_switch.example
+etc/zfs/vdev_id.conf.scsi.example
+etc/zfs/zfs-functions
+lib/systemd/system/zfs-import.service
diff --git a/contrib/debian/openzfs-libnvpair3.docs b/contrib/debian/openzfs-libnvpair3.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-libnvpair3.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-libnvpair3.install.in b/contrib/debian/openzfs-libnvpair3.install.in
new file mode 100644
index 000000000000..ed7b541e3607
--- /dev/null
+++ b/contrib/debian/openzfs-libnvpair3.install.in
@@ -0,0 +1 @@
+lib/@DEB_HOST_MULTIARCH@/libnvpair.so.*
diff --git a/contrib/debian/openzfs-libpam-zfs.install b/contrib/debian/openzfs-libpam-zfs.install
new file mode 100644
index 000000000000..c33123f69a8d
--- /dev/null
+++ b/contrib/debian/openzfs-libpam-zfs.install
@@ -0,0 +1,2 @@
+lib/*/security/pam_zfs_key.so
+usr/share/pam-configs/zfs_key
diff --git a/contrib/debian/openzfs-libpam-zfs.postinst b/contrib/debian/openzfs-libpam-zfs.postinst
new file mode 100644
index 000000000000..2db86744e4e6
--- /dev/null
+++ b/contrib/debian/openzfs-libpam-zfs.postinst
@@ -0,0 +1,6 @@
+#!/bin/sh
+set -e
+
+pam-auth-update --package
+
+#DEBHELPER#
diff --git a/contrib/debian/openzfs-libpam-zfs.prerm b/contrib/debian/openzfs-libpam-zfs.prerm
new file mode 100644
index 000000000000..21e827001c23
--- /dev/null
+++ b/contrib/debian/openzfs-libpam-zfs.prerm
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+if [ "$1" = remove ] ; then
+    pam-auth-update --package --remove zfs_key
+fi
+
+#DEBHELPER#
diff --git a/contrib/debian/openzfs-libuutil3.docs b/contrib/debian/openzfs-libuutil3.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-libuutil3.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-libuutil3.install.in b/contrib/debian/openzfs-libuutil3.install.in
new file mode 100644
index 000000000000..a197d030d743
--- /dev/null
+++ b/contrib/debian/openzfs-libuutil3.install.in
@@ -0,0 +1 @@
+lib/@DEB_HOST_MULTIARCH@/libuutil.so.*
diff --git a/contrib/debian/openzfs-libzfs-dev.docs b/contrib/debian/openzfs-libzfs-dev.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-libzfs-dev.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-libzfs-dev.install.in b/contrib/debian/openzfs-libzfs-dev.install.in
new file mode 100644
index 000000000000..eaa8c3925e24
--- /dev/null
+++ b/contrib/debian/openzfs-libzfs-dev.install.in
@@ -0,0 +1,3 @@
+lib/@DEB_HOST_MULTIARCH@/*.a usr/lib/@DEB_HOST_MULTIARCH@
+usr/include
+usr/lib/@DEB_HOST_MULTIARCH@
diff --git a/contrib/debian/openzfs-libzfs4.docs b/contrib/debian/openzfs-libzfs4.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-libzfs4.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-libzfs4.install.in b/contrib/debian/openzfs-libzfs4.install.in
new file mode 100644
index 000000000000..6765aaee59cc
--- /dev/null
+++ b/contrib/debian/openzfs-libzfs4.install.in
@@ -0,0 +1,2 @@
+lib/@DEB_HOST_MULTIARCH@/libzfs.so.*
+lib/@DEB_HOST_MULTIARCH@/libzfs_core.so.*
diff --git a/contrib/debian/openzfs-libzfsbootenv1.docs b/contrib/debian/openzfs-libzfsbootenv1.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-libzfsbootenv1.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-libzfsbootenv1.install.in b/contrib/debian/openzfs-libzfsbootenv1.install.in
new file mode 100644
index 000000000000..49216742433f
--- /dev/null
+++ b/contrib/debian/openzfs-libzfsbootenv1.install.in
@@ -0,0 +1 @@
+lib/@DEB_HOST_MULTIARCH@/libzfsbootenv.so.*
diff --git a/contrib/debian/openzfs-libzpool5.docs b/contrib/debian/openzfs-libzpool5.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-libzpool5.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-libzpool5.install.in b/contrib/debian/openzfs-libzpool5.install.in
new file mode 100644
index 000000000000..b9e872df9ba8
--- /dev/null
+++ b/contrib/debian/openzfs-libzpool5.install.in
@@ -0,0 +1 @@
+lib/@DEB_HOST_MULTIARCH@/libzpool.so.*
diff --git a/contrib/debian/openzfs-python3-pyzfs.install b/contrib/debian/openzfs-python3-pyzfs.install
new file mode 100644
index 000000000000..4606faae20a7
--- /dev/null
+++ b/contrib/debian/openzfs-python3-pyzfs.install
@@ -0,0 +1 @@
+usr/lib/python3*
diff --git a/contrib/debian/openzfs-zfs-dkms.config b/contrib/debian/openzfs-zfs-dkms.config
new file mode 100644
index 000000000000..ad7e160a2b11
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.config
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+set -e
+
+# Source debconf library
+. /usr/share/debconf/confmodule
+
+db_input critical zfs-dkms/note-incompatible-licenses || true
+db_go
+
+kernelbits=unknown
+if [ -r /proc/kallsyms ]; then
+	addrlen=$(head -1 /proc/kallsyms|awk '{print $1}'|wc -c)
+	if [ $addrlen = 17 ]; then
+		kernelbits=64
+	elif [ $addrlen = 9 ]; then
+		kernelbits=32
+	fi
+fi
+
+if [ $kernelbits != 64 ]; then
+	if [ $kernelbits = 32 ]; then
+		db_input critical zfs-dkms/stop-build-for-32bit-kernel || true
+		db_go || true
+	else
+		db_input critical zfs-dkms/stop-build-for-unknown-kernel || true
+		db_go || true
+	fi
+fi
+
+#DEBHELPER#
diff --git a/contrib/debian/openzfs-zfs-dkms.dkms b/contrib/debian/openzfs-zfs-dkms.dkms
new file mode 100644
index 000000000000..3ac8677b7cde
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.dkms
@@ -0,0 +1 @@
+scripts/zfs-dkms.dkms
diff --git a/contrib/debian/openzfs-zfs-dkms.docs b/contrib/debian/openzfs-zfs-dkms.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-zfs-dkms.install b/contrib/debian/openzfs-zfs-dkms.install
new file mode 100644
index 000000000000..b601f22c481a
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.install
@@ -0,0 +1 @@
+usr/src
diff --git a/contrib/debian/openzfs-zfs-dkms.postinst b/contrib/debian/openzfs-zfs-dkms.postinst
new file mode 100644
index 000000000000..0ecb9674d559
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.postinst
@@ -0,0 +1,51 @@
+#!/bin/sh
+set -e
+
+# Source debconf library (see dh_installdebconf(1) and #106070 #626312)
+. /usr/share/debconf/confmodule
+
+kernelbits=unknown
+if [ -r /proc/kallsyms ]; then
+	addrlen=$(head -1 /proc/kallsyms| grep -o '^ *[^ ]*' |wc -c)
+	if [ $addrlen = 17 ]; then
+		kernelbits=64
+	elif [ $addrlen = 9 ]; then
+		kernelbits=32
+	fi
+fi
+
+if [ $kernelbits != 64 ]; then
+	if [ $kernelbits = 32 ]; then
+		db_get zfs-dkms/stop-build-for-32bit-kernel
+		if [ "$RET" = "true" ]; then
+			echo "Ok, aborting, since ZFS is not designed for 32-bit kernels." 1>&2
+			# Exit 0: Tell dpkg that we finished OK but stop here.
+			# (don't build the module)
+			exit 0
+		else
+			echo "WARNING: Building ZFS module on a 32-bit kernel." 1>&2
+		fi
+	else
+		db_get zfs-dkms/stop-build-for-unknown-kernel
+		if [ "$RET" = "true" ]; then
+			echo "Ok, aborting, since ZFS is not designed for 32-bit kernels." 1>&2
+			# Exit 0: (same that above)
+			exit 0
+		else
+			echo "WARNING: Building ZFS module on an unknown kernel." 1>&2
+		fi
+	fi
+fi
+
+# Here the module gets built (automatically handled by dh_dkms)
+
+#DEBHELPER#
+
+
+case $1 in
+	(configure)
+		if [ -x /usr/share/update-notifier/notify-reboot-required ]; then
+			/usr/share/update-notifier/notify-reboot-required
+		fi
+		;;
+esac
diff --git a/contrib/debian/openzfs-zfs-dkms.prerm b/contrib/debian/openzfs-zfs-dkms.prerm
new file mode 100644
index 000000000000..fea2aee8b902
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.prerm
@@ -0,0 +1,8 @@
+#!/bin/sh
+set -e
+
+#DEBHELPER#
+
+if [ "$1" = "remove" ]; then
+        rm -f /etc/zfs/zpool.cache
+fi
diff --git a/contrib/debian/openzfs-zfs-dkms.templates b/contrib/debian/openzfs-zfs-dkms.templates
new file mode 100644
index 000000000000..3db643464e7f
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.templates
@@ -0,0 +1,40 @@
+Template: zfs-dkms/stop-build-for-32bit-kernel
+Type: boolean
+Default: true
+_Description: Abort building OpenZFS on a 32-bit kernel?
+ You are attempting to build OpenZFS against a 32-bit running kernel.
+ .
+ Although possible, building in a 32-bit environment is unsupported and
+ likely to cause instability leading to possible data corruption. You
+ are strongly advised to use a 64-bit kernel; if you do decide to
+ proceed with using OpenZFS on this kernel then keep in mind that it is at
+ your own risk.
+
+Template: zfs-dkms/stop-build-for-unknown-kernel
+Type: boolean
+Default: true
+_Description: Abort building OpenZFS on an unknown kernel?
+ You are attempting to build OpenZFS against a running kernel that could not
+ be identified as 32-bit or 64-bit. If you are not completely sure that
+ the running kernel is a 64-bit one, you should probably stop the build.
+ .
+ Although possible, building in a 32-bit environment is unsupported and
+ likely to cause instability leading to possible data corruption. You
+ are strongly advised to use a 64-bit kernel; if you do decide to
+ proceed with using OpenZFS on this kernel then keep in mind that it is at
+ your own risk.
+
+Template: zfs-dkms/note-incompatible-licenses
+Type: note
+_Description: Licenses of OpenZFS and Linux are incompatible
+ OpenZFS is licensed under the Common Development and Distribution License (CDDL),
+ and the Linux kernel is licensed under the GNU General Public License Version 2
+ (GPL-2). While both are free open source licenses they are restrictive
+ licenses. The combination of them causes problems because it prevents using
+ pieces of code exclusively available under one license with pieces of code
+ exclusively available under the other in the same binary. 
+ .
+ You are going to build OpenZFS using DKMS in such a way that they are not going to
+ be built into one monolithic binary. Please be aware that distributing both of
+ the binaries in the same media (disk images, virtual appliances, etc) may
+ lead to infringing.
diff --git a/contrib/debian/openzfs-zfs-dkms.triggers b/contrib/debian/openzfs-zfs-dkms.triggers
new file mode 100644
index 000000000000..865f50a5d99d
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dkms.triggers
@@ -0,0 +1 @@
+activate-await update-initramfs
diff --git a/contrib/debian/openzfs-zfs-dracut.install b/contrib/debian/openzfs-zfs-dracut.install
new file mode 100644
index 000000000000..8c2bf1b5c58b
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-dracut.install
@@ -0,0 +1,2 @@
+usr/lib/dracut
+usr/share/man/man7/dracut.zfs.7
diff --git a/contrib/debian/openzfs-zfs-initramfs.install b/contrib/debian/openzfs-zfs-initramfs.install
new file mode 100644
index 000000000000..222620947f10
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-initramfs.install
@@ -0,0 +1,2 @@
+../tree/zfs-initramfs/* /
+usr/share/initramfs-tools/*
diff --git a/contrib/debian/openzfs-zfs-modules-_KVERS_-di.install.in b/contrib/debian/openzfs-zfs-modules-_KVERS_-di.install.in
new file mode 100644
index 000000000000..fc1828ee9639
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-modules-_KVERS_-di.install.in
@@ -0,0 +1,2 @@
+module/spl.ko           lib/modules/_KVERS_/extra/zcommon/
+module/zfs.ko           lib/modules/_KVERS_/extra/zcommon/
diff --git a/contrib/debian/openzfs-zfs-modules-_KVERS_.install.in b/contrib/debian/openzfs-zfs-modules-_KVERS_.install.in
new file mode 100644
index 000000000000..fc1828ee9639
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-modules-_KVERS_.install.in
@@ -0,0 +1,2 @@
+module/spl.ko           lib/modules/_KVERS_/extra/zcommon/
+module/zfs.ko           lib/modules/_KVERS_/extra/zcommon/
diff --git a/contrib/debian/openzfs-zfs-modules-_KVERS_.postinst.in b/contrib/debian/openzfs-zfs-modules-_KVERS_.postinst.in
new file mode 100644
index 000000000000..4eb2314508a6
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-modules-_KVERS_.postinst.in
@@ -0,0 +1,16 @@
+#!/bin/sh
+set -e
+
+# Run depmod first
+depmod -a _KVERS_
+
+#DEBHELPER#
+
+
+case $1 in
+	(configure)
+		if [ -x /usr/share/update-notifier/notify-reboot-required ]; then
+			/usr/share/update-notifier/notify-reboot-required
+		fi
+		;;
+esac
diff --git a/contrib/debian/openzfs-zfs-modules-_KVERS_.postrm.in b/contrib/debian/openzfs-zfs-modules-_KVERS_.postrm.in
new file mode 100644
index 000000000000..2a2fc4b5cb95
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-modules-_KVERS_.postrm.in
@@ -0,0 +1,7 @@
+#!/bin/sh
+set -e
+
+# Run depmod after module uninstallation.
+depmod
+
+#DEBHELPER#
diff --git a/contrib/debian/openzfs-zfs-test.install b/contrib/debian/openzfs-zfs-test.install
new file mode 100644
index 000000000000..cafcfdc0e15b
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-test.install
@@ -0,0 +1,15 @@
+sbin/zinject
+sbin/ztest
+usr/bin/raidz_test
+usr/share/man/man1/raidz_test.1
+usr/share/man/man1/test-runner.1
+usr/share/man/man1/ztest.1
+usr/share/man/man8/zinject.8
+usr/share/zfs/common.sh
+usr/share/zfs/runfiles/
+usr/share/zfs/test-runner
+usr/share/zfs/zfs-tests.sh
+usr/share/zfs/zfs-tests/
+usr/share/zfs/zfs.sh
+usr/share/zfs/zimport.sh
+usr/share/zfs/zloop.sh
diff --git a/contrib/debian/openzfs-zfs-zed.install b/contrib/debian/openzfs-zfs-zed.install
new file mode 100644
index 000000000000..a348ba828ee5
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-zed.install
@@ -0,0 +1,5 @@
+etc/zfs/zed.d/*
+lib/systemd/system/zfs-zed.service
+usr/lib/zfs-linux/zed.d/*
+usr/sbin/zed
+usr/share/man/man8/zed.8
diff --git a/contrib/debian/openzfs-zfs-zed.postinst b/contrib/debian/openzfs-zfs-zed.postinst
new file mode 100644
index 000000000000..a615eec95760
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-zed.postinst
@@ -0,0 +1,20 @@
+#!/bin/sh
+set -e
+
+zedd="/usr/lib/zfs-linux/zed.d"
+etcd="/etc/zfs/zed.d"
+
+# enable all default zedlets that are not overridden
+while read -r file ; do
+    etcfile="${etcd}/${file}"
+    [ -e "${etcfile}" ] && continue
+    ln -sfT "${zedd}/${file}" "${etcfile}"
+done < "${zedd}/DEFAULT-ENABLED"
+
+# remove the overrides created in prerm
+find "${etcd}" -maxdepth 1 -lname '/dev/null' -delete
+# remove any dangling symlinks to old zedlets
+find "${etcd}" -maxdepth 1 -lname "${zedd}/*" -xtype l  -delete
+
+#DEBHELPER#
+
diff --git a/contrib/debian/openzfs-zfs-zed.postrm b/contrib/debian/openzfs-zfs-zed.postrm
new file mode 100644
index 000000000000..e9aed3f4ce2b
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-zed.postrm
@@ -0,0 +1,17 @@
+#!/bin/sh
+set -e
+
+zedd="/usr/lib/zfs-linux/zed.d"
+etcd="/etc/zfs/zed.d"
+
+if [ "$1" = "purge" ] && [ -d "$etcd" ] ; then
+    # remove the overrides created in prerm
+    find "${etcd}" -maxdepth 1 -lname '/dev/null' -delete
+    # remove any dangling symlinks to old zedlets
+    find "${etcd}" -maxdepth 1 -lname "${zedd}/*" -xtype l  -delete
+    # clean up any empty directories
+    ( rmdir "$etcd" && rmdir "/etc/zfs" ) || true
+fi
+
+#DEBHELPER#
+
diff --git a/contrib/debian/openzfs-zfs-zed.prerm b/contrib/debian/openzfs-zfs-zed.prerm
new file mode 100644
index 000000000000..b8340df53438
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-zed.prerm
@@ -0,0 +1,16 @@
+#!/bin/sh
+set -e
+
+zedd="/usr/lib/zfs-linux/zed.d"
+etcd="/etc/zfs/zed.d"
+
+if [ "$1" != "failed-upgrade" ] && [ -d "${etcd}" ] && [ -d "${zedd}" ] ; then
+    while read -r file ; do
+        etcfile="${etcd}/${file}"
+        ( [ -L "${etcfile}" ] || [ -e "${etcfile}" ] ) && continue
+        ln -sT /dev/null "${etcfile}"
+    done < "${zedd}/DEFAULT-ENABLED"
+fi
+
+#DEBHELPER#
+
diff --git a/contrib/debian/openzfs-zfs-zed.zfs-zed.init b/contrib/debian/openzfs-zfs-zed.zfs-zed.init
new file mode 120000
index 000000000000..3f41f6813577
--- /dev/null
+++ b/contrib/debian/openzfs-zfs-zed.zfs-zed.init
@@ -0,0 +1 @@
+../etc/init.d/zfs-zed
\ No newline at end of file
diff --git a/contrib/debian/openzfs-zfsutils.docs b/contrib/debian/openzfs-zfsutils.docs
new file mode 100644
index 000000000000..4302f1b2ab6a
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.docs
@@ -0,0 +1,2 @@
+COPYRIGHT
+LICENSE
diff --git a/contrib/debian/openzfs-zfsutils.examples b/contrib/debian/openzfs-zfsutils.examples
new file mode 100644
index 000000000000..9f10d3fc0a7a
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.examples
@@ -0,0 +1,5 @@
+etc/zfs/vdev_id.conf.alias.example
+etc/zfs/vdev_id.conf.multipath.example
+etc/zfs/vdev_id.conf.sas_direct.example
+etc/zfs/vdev_id.conf.sas_switch.example
+etc/zfs/vdev_id.conf.scsi.example
diff --git a/contrib/debian/openzfs-zfsutils.install b/contrib/debian/openzfs-zfsutils.install
new file mode 100644
index 000000000000..e10a50e012c1
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.install
@@ -0,0 +1,135 @@
+etc/default/zfs
+etc/zfs/zfs-functions
+etc/zfs/zpool.d/
+etc/bash_completion.d/zfs
+lib/systemd/system-generators/
+lib/systemd/system-preset/
+lib/systemd/system/zfs-import-cache.service
+lib/systemd/system/zfs-import-scan.service
+lib/systemd/system/zfs-import.target
+lib/systemd/system/zfs-load-key.service
+lib/systemd/system/zfs-mount.service
+lib/systemd/system/zfs-scrub-monthly@.timer
+lib/systemd/system/zfs-scrub-weekly@.timer
+lib/systemd/system/zfs-scrub@.service
+lib/systemd/system/zfs-trim-monthly@.timer
+lib/systemd/system/zfs-trim-weekly@.timer
+lib/systemd/system/zfs-trim@.service
+lib/systemd/system/zfs-share.service
+lib/systemd/system/zfs-volume-wait.service
+lib/systemd/system/zfs-volumes.target
+lib/systemd/system/zfs.target
+lib/udev/
+sbin/fsck.zfs
+sbin/mount.zfs
+sbin/zdb
+sbin/zfs
+sbin/zfs_ids_to_path
+sbin/zgenhostid
+sbin/zhack
+sbin/zpool
+sbin/zstream
+sbin/zstreamdump
+usr/bin/zvol_wait
+usr/lib/modules-load.d/ lib/
+usr/lib/zfs-linux/zpool.d/
+usr/lib/zfs-linux/zpool_influxdb
+usr/sbin/arc_summary
+usr/sbin/arcstat
+usr/sbin/dbufstat
+usr/sbin/zilstat
+usr/share/zfs/compatibility.d/
+usr/share/bash-completion/completions
+usr/share/man/man1/arcstat.1
+usr/share/man/man1/zhack.1
+usr/share/man/man1/zvol_wait.1
+usr/share/man/man5/
+usr/share/man/man8/fsck.zfs.8
+usr/share/man/man8/mount.zfs.8
+usr/share/man/man8/vdev_id.8
+usr/share/man/man8/zdb.8
+usr/share/man/man8/zfs-allow.8
+usr/share/man/man8/zfs-bookmark.8
+usr/share/man/man8/zfs-change-key.8
+usr/share/man/man8/zfs-clone.8
+usr/share/man/man8/zfs-create.8
+usr/share/man/man8/zfs-destroy.8
+usr/share/man/man8/zfs-diff.8
+usr/share/man/man8/zfs-get.8
+usr/share/man/man8/zfs-groupspace.8
+usr/share/man/man8/zfs-hold.8
+usr/share/man/man8/zfs-inherit.8
+usr/share/man/man8/zfs-jail.8
+usr/share/man/man8/zfs-list.8
+usr/share/man/man8/zfs-load-key.8
+usr/share/man/man8/zfs-mount-generator.8
+usr/share/man/man8/zfs-mount.8
+usr/share/man/man8/zfs-program.8
+usr/share/man/man8/zfs-project.8
+usr/share/man/man8/zfs-projectspace.8
+usr/share/man/man8/zfs-promote.8
+usr/share/man/man8/zfs-receive.8
+usr/share/man/man8/zfs-recv.8
+usr/share/man/man8/zfs-redact.8
+usr/share/man/man8/zfs-release.8
+usr/share/man/man8/zfs-rename.8
+usr/share/man/man8/zfs-rollback.8
+usr/share/man/man8/zfs-send.8
+usr/share/man/man8/zfs-set.8
+usr/share/man/man8/zfs-share.8
+usr/share/man/man8/zfs-snapshot.8
+usr/share/man/man8/zfs-unallow.8
+usr/share/man/man8/zfs-unjail.8
+usr/share/man/man8/zfs-unload-key.8
+usr/share/man/man8/zfs-unmount.8
+usr/share/man/man8/zfs-unzone.8
+usr/share/man/man8/zfs-upgrade.8
+usr/share/man/man8/zfs-userspace.8
+usr/share/man/man8/zfs-wait.8
+usr/share/man/man8/zfs-zone.8
+usr/share/man/man8/zfs.8
+usr/share/man/man8/zfs_ids_to_path.8
+usr/share/man/man7/zfsconcepts.7
+usr/share/man/man7/zfsprops.7
+usr/share/man/man8/zgenhostid.8
+usr/share/man/man8/zpool-add.8
+usr/share/man/man8/zpool-attach.8
+usr/share/man/man8/zpool-checkpoint.8
+usr/share/man/man8/zpool-clear.8
+usr/share/man/man8/zpool-create.8
+usr/share/man/man8/zpool-destroy.8
+usr/share/man/man8/zpool-detach.8
+usr/share/man/man8/zpool-events.8
+usr/share/man/man8/zpool-export.8
+usr/share/man/man8/zpool-get.8
+usr/share/man/man8/zpool-history.8
+usr/share/man/man8/zpool-import.8
+usr/share/man/man8/zpool-initialize.8
+usr/share/man/man8/zpool-iostat.8
+usr/share/man/man8/zpool-labelclear.8
+usr/share/man/man8/zpool-list.8
+usr/share/man/man8/zpool-offline.8
+usr/share/man/man8/zpool-online.8
+usr/share/man/man8/zpool-reguid.8
+usr/share/man/man8/zpool-remove.8
+usr/share/man/man8/zpool-reopen.8
+usr/share/man/man8/zpool-replace.8
+usr/share/man/man8/zpool-resilver.8
+usr/share/man/man8/zpool-scrub.8
+usr/share/man/man8/zpool-set.8
+usr/share/man/man8/zpool-split.8
+usr/share/man/man8/zpool-status.8
+usr/share/man/man8/zpool-sync.8
+usr/share/man/man8/zpool-trim.8
+usr/share/man/man8/zpool-upgrade.8
+usr/share/man/man8/zpool-wait.8
+usr/share/man/man8/zpool.8
+usr/share/man/man7/zpoolconcepts.7
+usr/share/man/man7/zpoolprops.7
+usr/share/man/man8/zstream.8
+usr/share/man/man8/zstreamdump.8
+usr/share/man/man4/spl.4
+usr/share/man/man4/zfs.4
+usr/share/man/man7/zpool-features.7
+usr/share/man/man7/dracut.zfs.7
+usr/share/man/man8/zpool_influxdb.8
diff --git a/contrib/debian/openzfs-zfsutils.postinst b/contrib/debian/openzfs-zfsutils.postinst
new file mode 100644
index 000000000000..b13a78654c37
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.postinst
@@ -0,0 +1,28 @@
+#!/bin/sh
+set -e
+
+# The hostname and hostid of the last system to access a ZFS pool are stored in
+# the ZFS pool itself. A pool is foreign if, during `zpool import`, the
+# current hostname and hostid are different than the stored values thereof.
+#
+# The only way of having a stable hostid is to define it in /etc/hostid.
+# This postinst helper will check if we already have the hostid stabilized by
+# checking the existence of the file /etc/hostid to be 4 bytes at least.
+# If this file don't already exists on our system or has less than 4 bytes, then
+# a new (random) value is generated with zgenhostid (8) and stored in
+# /etc/hostid
+
+if [ ! -f /etc/hostid ] || [ "$(stat -c %s /etc/hostid)" -lt 4 ] ; then
+	zgenhostid
+fi
+
+# When processed to here but zfs kernel module is not loaded, the subsequent
+# services would fail to start. In this case the installation process just
+# fails at the postinst stage. The user could do
+#   $ sudo modprobe zfs; sudo dpkg --configure -a
+# to complete the installation.
+#
+modprobe -v zfs || true # modprobe zfs does nothing if zfs.ko was already loaded.
+
+#DEBHELPER#
+
diff --git a/contrib/debian/openzfs-zfsutils.zfs-import.init b/contrib/debian/openzfs-zfsutils.zfs-import.init
new file mode 120000
index 000000000000..bfc368fd3426
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.zfs-import.init
@@ -0,0 +1 @@
+../etc/init.d/zfs-import
\ No newline at end of file
diff --git a/contrib/debian/openzfs-zfsutils.zfs-load-key.init b/contrib/debian/openzfs-zfsutils.zfs-load-key.init
new file mode 120000
index 000000000000..3f3e97f811bb
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.zfs-load-key.init
@@ -0,0 +1 @@
+../etc/init.d/zfs-load-key
\ No newline at end of file
diff --git a/contrib/debian/openzfs-zfsutils.zfs-mount.init b/contrib/debian/openzfs-zfsutils.zfs-mount.init
new file mode 120000
index 000000000000..62a544332422
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.zfs-mount.init
@@ -0,0 +1 @@
+../etc/init.d/zfs-mount
\ No newline at end of file
diff --git a/contrib/debian/openzfs-zfsutils.zfs-share.init b/contrib/debian/openzfs-zfsutils.zfs-share.init
new file mode 120000
index 000000000000..3f069f9baaaf
--- /dev/null
+++ b/contrib/debian/openzfs-zfsutils.zfs-share.init
@@ -0,0 +1 @@
+../etc/init.d/zfs-share
\ No newline at end of file
diff --git a/contrib/debian/rules b/contrib/debian/rules
new file mode 100755
index 000000000000..5f4889445bea
--- /dev/null
+++ b/contrib/debian/rules
@@ -0,0 +1,223 @@
+#!/usr/bin/make -f
+
+include /usr/share/dpkg/default.mk
+
+LSB_DISTRIBUTOR := $(shell lsb_release -is)
+NAME := $(shell awk '$$1 == "Name:" { print $$2; }' META)
+LINUX_MIN  := $(shell awk '/Linux-Minimum:/{print $$2}' META)
+LINUX_NEXT := $(shell awk -F'[ .]' '/Linux-Maximum:/{print $$2 "." $$3+1}' META)
+
+DKMSFILES := module include config zfs.release.in autogen.sh META AUTHORS \
+		COPYRIGHT LICENSE README.md
+
+ifndef KVERS
+KVERS=$(shell uname -r)
+endif
+
+non_epoch_version=$(shell echo $(KVERS) | perl -pe 's/^\d+://')
+PACKAGE=openzfs-zfs
+pmodules = $(PACKAGE)-modules-$(non_epoch_version)
+
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+
+NUM_CPUS = $(shell nproc 2>/dev/null)
+PARALLEL = $(subst parallel=,,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
+NJOBS    = -j$(or $(PARALLEL),$(NUM_CPUS),1)
+
+%:
+	dh $@ --with autoreconf,dkms,python3,sphinxdoc
+
+override_dh_autoreconf:
+	@# Embed the downstream version in the module.
+	@sed -e 's/^Version:.*/Version:       $(DEB_VERSION_UPSTREAM)/' -i.orig META
+
+	dh_autoreconf
+
+override_dh_auto_configure:
+	@# Build the userland, but don't build the kernel modules.
+	dh_auto_configure -- \
+	  --bindir=/usr/bin \
+	  --sbindir=/sbin \
+	  --libdir=/lib/"$(DEB_HOST_MULTIARCH)" \
+	  --with-udevdir=/lib/udev \
+	  --with-zfsexecdir=/usr/lib/zfs-linux \
+	  --enable-systemd \
+	  --enable-pyzfs \
+	  --with-python=python3 \
+	  --with-pammoduledir='/lib/$(DEB_HOST_MULTIARCH)/security' \
+	  --with-pkgconfigdir='/usr/lib/$(DEB_HOST_MULTIARCH)/pkgconfig' \
+	  --with-systemdunitdir=/lib/systemd/system \
+	  --with-systemdpresetdir=/lib/systemd/system-preset \
+	  --with-systemdgeneratordir=/lib/systemd/system-generators \
+	  --with-config=user
+
+	for i in $(wildcard $(CURDIR)/debian/*.install.in) ; do \
+		basename "$$i" | grep _KVERS_ && continue ; \
+		sed 's/@DEB_HOST_MULTIARCH@/$(DEB_HOST_MULTIARCH)/g' "$$i" > "$${i%%.in}" ; \
+	done
+
+override_dh_gencontrol:
+	dh_gencontrol -- -Vlinux:Recommends="linux-libc-dev (<< $(LINUX_NEXT)~), linux-libc-dev (>= $(LINUX_MIN)~),"
+
+override_dh_auto_build:
+	@# Get a bare copy of the source code for DKMS.
+	@# This creates the $(CURDIR)/$(NAME)-$(DEB_VERSION_UPSTREAM)/ tree, which does not
+	@# contain the userland sources. NB: Remove-userland-dist-rules.patch
+	$(MAKE) distdir
+
+	dh_auto_build
+
+override_dh_auto_install:
+	@# Install the utilities.
+	$(MAKE) install DESTDIR='$(CURDIR)/debian/tmp'
+
+	# Use upstream's bash completion
+	install -D -t '$(CURDIR)/debian/tmp/usr/share/bash-completion/completions/' \
+		'$(CURDIR)/contrib/bash_completion.d/zfs'
+
+	# Move from bin_dir to /usr/sbin
+	# Remove suffix (.py) as per policy 10.4 - Scripts
+	# https://www.debian.org/doc/debian-policy/ch-files.html#s-scripts
+	mkdir -p '$(CURDIR)/debian/tmp/usr/sbin/'
+	mv '$(CURDIR)/debian/tmp/usr/bin/arc_summary' '$(CURDIR)/debian/tmp/usr/sbin/arc_summary'
+	mv '$(CURDIR)/debian/tmp/usr/bin/arcstat' '$(CURDIR)/debian/tmp/usr/sbin/arcstat'
+	mv '$(CURDIR)/debian/tmp/usr/bin/dbufstat' '$(CURDIR)/debian/tmp/usr/sbin/dbufstat'
+	mv '$(CURDIR)/debian/tmp/usr/bin/zilstat' '$(CURDIR)/debian/tmp/usr/sbin/zilstat'
+
+	@# Zed has dependencies outside of the system root.
+	mv '$(CURDIR)/debian/tmp/sbin/zed' '$(CURDIR)/debian/tmp/usr/sbin/zed'
+
+	@# Install the DKMS source.
+	@# We only want the files needed to build the modules
+	install -D -t '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/scripts' \
+		'$(CURDIR)/scripts/enum-extract.pl' \
+		'$(CURDIR)/scripts/dkms.postbuild'
+	$(foreach file,$(DKMSFILES),mv '$(CURDIR)/$(NAME)-$(DEB_VERSION_UPSTREAM)/$(file)' '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)' || exit 1;)
+
+	@# Only ever build Linux modules
+	echo 'SUBDIRS = linux' > '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/include/os/Makefile.am'
+
+	@# Hellish awk line:
+	@#  * Deletes from configure.ac the parts not needed for building the kernel module
+	@#     * It deletes from inside AC_CONFIG_FILES([]) everything except:
+	@#        - Makefile$
+	@#        - include/(Makefile|sys|os/(Makefile|linux))
+	@#        - module/
+	@#        - zfs.release$
+	@#  * Takes care of spaces and tabs
+	@#  * Remove reference to ZFS_AC_PACKAGE
+	awk '/^AC_CONFIG_FILES\(\[/,/^\]\)/ {\
+		if ($$0 !~ /^(AC_CONFIG_FILES\(\[([ \t]+)?$$|\]\)([ \t]+)?$$|([ \t]+)?(include\/(Makefile|sys|os\/(Makefile|linux))|module\/|Makefile([ \t]+)?$$|zfs\.release([ \t]+)?$$))/) \
+		{next} } {print}' \
+		'$(CURDIR)/$(NAME)-$(DEB_VERSION_UPSTREAM)/configure.ac' | sed '/ZFS_AC_PACKAGE/d' > '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/configure.ac'
+	@# Set "SUBDIRS = module include" for CONFIG_KERNEL and remove SUBDIRS for all other configs.
+	@# Do not regenerate zfs_gitrev.h during dkms build
+	sed '1,/CONFIG_KERNEL/s/SUBDIRS.*=.*//g;s/SUBDIRS.*=.*/SUBDIRS = module include/g;/make_gitrev.sh/d' \
+		'$(CURDIR)/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am' > '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am'
+	@# Sanity test
+	grep -q 'SUBDIRS = module include' '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am'
+	sed -i '/rpm.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/cmd.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/contrib.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/etc.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/lib.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/man.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/scripts.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/tests.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	sed -i '/udev.Makefile/d' $(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/Makefile.am
+	@# Run autogen on the stripped source tree
+	cd '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)'; ./autogen.sh
+	rm -fr '$(CURDIR)/debian/tmp/usr/src/$(NAME)-$(DEB_VERSION_UPSTREAM)/autom4te.cache'
+
+	for i in `ls $(CURDIR)/debian/tmp/lib/$(DEB_HOST_MULTIARCH)/*.so`; do \
+		ln -s '/lib/$(DEB_HOST_MULTIARCH)/'`readlink $${i}` '$(CURDIR)/debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/'`basename $${i}`; \
+		rm $${i}; \
+	done
+
+	chmod a-x '$(CURDIR)/debian/tmp/etc/zfs/zfs-functions'
+	chmod a-x '$(CURDIR)/debian/tmp/etc/default/zfs'
+	chmod a-x '$(CURDIR)/debian/tmp/usr/share/bash-completion/completions/zfs'
+
+override_dh_python3:
+	dh_python3 -p openzfs-python3-pyzfs
+
+override_dh_dkms:
+	'$(CURDIR)/scripts/dkms.mkconf' -n $(NAME) -v $(DEB_VERSION_UPSTREAM) -f '$(CURDIR)/scripts/zfs-dkms.dkms'
+	dh_dkms
+	rm -f '$(CURDIR)/scripts/zfs-dkms.dkms'
+
+override_dh_makeshlibs:
+	dh_makeshlibs -a -V
+
+override_dh_strip:
+	dh_strip
+
+override_dh_auto_clean:
+	rm -rf zfs-$(DEB_VERSION_UPSTREAM)
+	dh_auto_clean
+	@if test -e META.orig; then mv META.orig META; fi
+
+override_dh_install:
+	find debian/tmp/lib -name '*.la' -delete
+	dh_install
+
+override_dh_missing:
+	dh_missing --fail-missing
+
+override_dh_installinit:
+	dh_installinit -r --no-restart-after-upgrade --name zfs-import
+	dh_installinit -r --no-restart-after-upgrade --name zfs-mount
+	dh_installinit -r --no-restart-after-upgrade --name zfs-load-key
+	dh_installinit -R --name zfs-share
+	dh_installinit -R --name zfs-zed
+
+override_dh_installsystemd:
+	mkdir -p debian/openzfs-zfsutils/lib/systemd/system
+	ln -sr /dev/null debian/openzfs-zfsutils/lib/systemd/system/zfs-import.service
+	dh_installsystemd --no-stop-on-upgrade -X zfs-zed.service
+	dh_installsystemd --name zfs-zed
+
+override_dh_installdocs:
+	dh_installdocs -A
+ifeq (,$(findstring nodoc, $(DEB_BUILD_OPTIONS)))
+	http_proxy='127.0.0.1:9' sphinx-build -N -bhtml "$(CURDIR)/contrib/pyzfs/docs/source/" debian/openzfs-pyzfs-doc/usr/share/doc/openzfs-pyzfs-doc/html/
+endif
+
+# ------------
+
+override_dh_prep-deb-files:
+	for templ in $(wildcard $(CURDIR)/debian/*_KVERS_*.in); do \
+		sed -e 's/##KVERS##/$(KVERS)/g ; s/#KVERS#/$(KVERS)/g ; s/_KVERS_/$(KVERS)/g ; s/##KDREV##/$(KDREV)/g ; s/#KDREV#/$(KDREV)/g ; s/_KDREV_/$(KDREV)/g ; s/_ARCH_/$(DEB_HOST_ARCH)/' \
+		< $$templ > `echo $$templ | sed -e 's/_KVERS_/$(KVERS)/g ; s/_ARCH_/$(DEB_HOST_ARCH)/g ; s/\.in$$//'` ; \
+	done
+	sed -e 's/##KVERS##/$(KVERS)/g ; s/#KVERS#/$(KVERS)/g ; s/_KVERS_/$(KVERS)/g ; s/##KDREV##/$(KDREV)/g ; s/#KDREV#/$(KDREV)/g ; s/_KDREV_/$(KDREV)/g ; s/_ARCH_/$(DEB_HOST_ARCH)/g' \
+	< debian/control.modules.in > debian/control
+
+override_dh_configure_modules: override_dh_configure_modules_stamp
+override_dh_configure_modules_stamp:
+	./configure \
+		--with-config=kernel \
+		--with-linux=$(KSRC) \
+		--with-linux-obj=$(KOBJ)
+	touch override_dh_configure_modules_stamp
+
+override_dh_binary-modules: override_dh_prep-deb-files override_dh_configure_modules
+	dh_testdir
+	dh_testroot
+	dh_prep
+
+	$(MAKE) $(NJOBS) -C $(CURDIR)/module modules
+
+	dh_install -p${pmodules}
+	dh_installdocs -p${pmodules}
+	dh_installchangelogs -p${pmodules}
+	dh_compress -p${pmodules}
+	dh_strip -p${pmodules}
+	dh_fixperms -p${pmodules}
+	dh_installdeb -p${pmodules}
+	dh_gencontrol -p${pmodules}
+	dh_md5sums -p${pmodules}
+	dh_builddeb -p${pmodules}
+
+debian-copyright:
+	cme update dpkg-copyright -file debian/copyright.cme
diff --git a/contrib/debian/source/format b/contrib/debian/source/format
new file mode 100644
index 000000000000..163aaf8d82b6
--- /dev/null
+++ b/contrib/debian/source/format
@@ -0,0 +1 @@
+3.0 (quilt)
diff --git a/contrib/debian/tree/zfs-initramfs/usr/share/initramfs-tools/conf.d/zfs b/contrib/debian/tree/zfs-initramfs/usr/share/initramfs-tools/conf.d/zfs
new file mode 100644
index 000000000000..5103cc450858
--- /dev/null
+++ b/contrib/debian/tree/zfs-initramfs/usr/share/initramfs-tools/conf.d/zfs
@@ -0,0 +1,8 @@
+for x in $(cat /proc/cmdline)
+do
+	case $x in
+		root=ZFS=*)
+			BOOT=zfs
+			;;
+	esac
+done
diff --git a/contrib/debian/tree/zfs-initramfs/usr/share/initramfs-tools/hooks/zdev b/contrib/debian/tree/zfs-initramfs/usr/share/initramfs-tools/hooks/zdev
new file mode 100755
index 000000000000..0cf21a4211a8
--- /dev/null
+++ b/contrib/debian/tree/zfs-initramfs/usr/share/initramfs-tools/hooks/zdev
@@ -0,0 +1,67 @@
+#!/bin/sh
+#
+# Add udev rules for ZoL to the initrd.
+#
+
+PREREQ="udev"
+PREREQ_UDEV_RULES="60-zvol.rules 69-vdev.rules"
+COPY_EXEC_LIST="/lib/udev/zvol_id /lib/udev/vdev_id"
+
+# Generic result code.
+RC=0
+
+case $1 in
+prereqs)
+	echo "$PREREQ"
+	exit 0
+	;;
+esac
+
+for ii in $COPY_EXEC_LIST
+do
+	if [ ! -x "$ii" ]
+	then
+		echo "Error: $ii is not executable."
+		RC=2
+	fi
+done
+
+if [ "$RC" -ne 0 ]
+then
+	exit "$RC"
+fi
+
+. /usr/share/initramfs-tools/hook-functions
+
+mkdir -p "$DESTDIR/lib/udev/rules.d/"
+for ii in $PREREQ_UDEV_RULES
+do
+	if [ -e "/etc/udev/rules.d/$ii" ]
+	then
+		cp -p "/etc/udev/rules.d/$ii" "$DESTDIR/lib/udev/rules.d/"
+	elif [ -e "/lib/udev/rules.d/$ii" ]
+	then
+		cp -p "/lib/udev/rules.d/$ii" "$DESTDIR/lib/udev/rules.d/"
+	else
+		echo "Error: Missing udev rule: $ii"
+		echo "       This file must be in the /etc/udev/rules.d or /lib/udev/rules.d directory."
+		exit 1
+	fi
+done
+
+for ii in $COPY_EXEC_LIST
+do
+	copy_exec "$ii"
+done
+
+if [ -f '/etc/default/zfs' -a -r '/etc/default/zfs' ]
+then
+	mkdir -p "$DESTDIR/etc/default"
+	cp -a '/etc/default/zfs' "$DESTDIR/etc/default/"
+fi
+
+if [ -d '/etc/zfs' -a -r '/etc/zfs' ]
+then
+	mkdir -p "$DESTDIR/etc"
+	cp -a '/etc/zfs' "$DESTDIR/etc/"
+fi
diff --git a/scripts/debian-packaging.sh b/scripts/debian-packaging.sh
new file mode 100755
index 000000000000..9cd042fa44da
--- /dev/null
+++ b/scripts/debian-packaging.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+#
+# This script can be used to invoke OpenZFS build from native Debian
+# packaging.
+#
+
+print_help ()
+{
+	echo "Usage: $(basename $0) [OPTIONS]"
+	echo
+	echo "Options:"
+	echo " -b, --build		Build OpenZFS from Debian Packaging"
+	echo " -c, --clean		Clean the workspace"
+}
+
+if [ "$#" -ne 1 ]; then
+	print_help
+	exit 1
+fi
+
+case $1 in
+	-b|--build)
+		cp -r contrib/debian debian
+		debuild -i -us -uc -b && fakeroot debian/rules override_dh_binary-modules
+		;;
+	-c|--clean)
+		fakeroot debian/rules override_dh_auto_clean
+		rm -rf debian
+		;;
+	*)
+		print_help
+		;;
+esac
+
+exit 0