Jessie to Stretch update

Debian.md

@@ -3,6 +3,13 @@ Offical ZFS on Linux [DKMS][dkms] style packages are available from the [Debian
 **Debian Releases:** Jessie and newer (testing, sid)  
 **Architectures:** amd64  
 
+# Table of contents
+- [Installation](#installation)
+- [Jessie to Stretch update](#jessie-to-stretch-update)
+- [[Debian GNU Linux initrd documentation]]  
+- [[Debian Stretch Root on ZFS]]
+- [[Dual booting OS X and Debian Jessie with ZFS root, cross mounting and full disk encryption]]
+
 ## Installation
 For Debian Stretch, ZFS packages are included in [contrib repository](https://packages.debian.org/source/stretch/zfs-linux).
 
@@ -24,6 +31,13 @@ If you want to boot from ZFS, you'll need `zfs-initramfs` package too:
 [debian-announce]: https://lists.debian.org/debian-devel-announce/2015/04/msg00006.html
 [debian-itp]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686447
 
-* [[Debian GNU Linux initrd documentation]]  
+## Jessie to Stretch update
-* [[Debian Stretch Root on ZFS]]
+From Debian Stretch packages are included in Debian official `contrib` repository. Steps to reinstall packages:
-* [[Dual booting OS X and Debian Jessie with ZFS root, cross mounting and full disk encryption]]
+
+1) Remove old packages:
+```
+# apt remove debian-zfs libzfs2 zfs-dkms zfsonlinux zfsutils libzpool2 libzfs2linux libnvpair1linux libnvpair1 libuutil1 libuutil1linux  libzpool2linux zfs-zed zfsutils-linux spl-dkms
+```
+
+2) [Install new packages](#installation), as described above.
+